Chapter IV: Part 4
Cutting should be done when the greater proportion of the seeds are hard, but not sufficiently ripe to shell. At this stage a majority of the pods are turned a dark-brown color and the seeds are fully developed. Frequently the cutting can be raked into windrows after two hours if the weather is drying, and in two or three hours more put into cocks and let stand for twenty-four to forty-eight hours, as the weather may justify. It should, however, be well cured and thoroughly dry when put in the stack, or there is danger of heating, and stack-heating seriously injures the vitality of the seed. It is not uncommon, if extremely ripe, to leave the cutting in the swath only an hour or a half-hour, then stack, and let stand for autumn or later threshing. If allowed to stand in the stack for about thirty days, the entire mass goes through a sweating and curing process which makes the threshing easier, while less of the seed is left in the straw than would be if it had not stack-cured. In western Kansas many seed raisers cut their seed crop with a self-binder, put the sheaves in shocks the same day and thresh in about ten days, or put it into a stack to await a convenient threshing time. They claim to secure 20 per cent more of the seed in this way than if they cut with the ordinary mower. Others cut with a mower having a dropper attachment which leaves the alfalfa in small bunches at the will of the driver, in the center of the swath, and these are “straddled” by the team and the wheels of the mower in the subsequent rounds. These bunches are left for two or three days and then stacked. There is little, if any, danger from mold or spontaneous combustion in stacks of alfalfa cut for seed, but there is danger of the seed heating in the stack if stacked when damp. If bright, clean seed is expected, the stacks must be well topped with slough grass, or covered with tarpaulins or boards, or given other protection. It is better still to put the alfalfa intended for seed into a barn.
One Kansas farmer in the western part of the state reports that he used a self-binding harvester, shocked the sheaves like those of grain, let them stand ten days and then put in a mow, with no bad results.
YIELDS OF SEED
The yield of seed ranges all the way from two to thirteen bushels per acre, the normal yield in the seed regions being four to eight bushels. It is threshed with ordinary grain separators with seed attachments, although the clover-huller is usually preferred. No threshing machine cleans the seed satisfactorily or sufficiently, and a careful recleaning is necessary. Fanning mills or seed-cleaners are now made that will remove most weed seeds, seeds of dodder, and all light-weight and probably infertile alfalfa seeds. However, no raiser should by rights thresh, to say nothing of marketing, the seeds of the dodder or any other weed with his alfalfa; these should be cut out of the field with scythe, sickle or knife a month before the alfalfa is cut.
The threshed alfalfa straw is worth only about half as much as the hay, yet it makes excellent feed for horses, colts and calves. Or, if put into stacks of alfalfa of the third cutting, in alternate layers, it may be fed to any stock to good advantage, as it is relished quite as well as ordinary third cuttings, notwithstanding its lower feeding value.
THE THIRD CUTTING FOR SEED
Seed raisers in some instances, especially in Kansas, use the third cutting for seed, claiming that the pods are more uniformly filled and the seeds more generally fertile, due to the assistance of the bees in pollenation. They claim, too, that this cutting has fewer weeds and weed seeds than its predecessors; also that they are thus sure of two good hay crops, while often if they use the second crop for seed, the third crop is hardly worth more than the cutting. The only point left in favor of using the second cutting for seed, where the farmer is confident of a third, is that the protein value of the second is the lowest, and hence its hay can better be spared than that from any other cutting.
The raising of seed in the more humid eastern states should not, generally, be attempted, as it will not only interfere with obtaining full value in the hay crop, but the less fertile soil will not produce as vigorous seed as will the newer and richer lands west of the Missouri river. At present the best seed for general use is produced between that river and the Rocky mountains. Utah produces a hardy seed, but much if not most of it is raised under irrigation, and, hence, at least theoretically, not deemed best adapted for regions dependent entirely upon soil moisture from rains.
Photograph by courtesy of Henry Field]
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The mast is held in place by guy ropes from the top. Leading to the right may be seen the rope to which is attached a team of horses. The base of the derrick is in the form of sled runners, so that the whole may be drawn along the stack by attaching a team]
with six-tined Jackson or California fork. The derrick is substantial, and guy ropes are not necessary. Stakes driven into the ground around the base hold the derrick in place]
_CHAPTER VIII._
Storing
CARE IN CURING
After all possible care has been taken in seeding, cultivating and harvesting alfalfa, its feeding value may be greatly impaired or quite lost by ignorance or carelessness in storing; that is, by stacking or putting it into sheds or barns, or by baling it for market when in an unsuitable condition.
The only path to safety in stacking or storing in shed or mow is having the hay in proper condition for completing its own curing. The true medium for its curing is air, not sun; the sun has done possibly more than its share already. But good hay is not completely and properly cured in swath, windrow and cock. If cured in the windrow, the exposed parts are liable to be much injured by the sun. Therefore the principle stands, “Handle alfalfa green.” It must be cut green, teddered, raked and cocked or bunched while comparatively green, and must not then be allowed to dry and parch to brittleness. True, it must not be put into a stack so long as it is possible to wring water out of the stalks. A constant study should be to find the best method of getting the hay into storage without loss of its natural color. The method that will safely store it greenest will be the best to follow. Handled green the leaves are saved, and these constitute from 50 to 75 per cent of the whole value.
PUTTING INTO WINTER QUARTERS
When (in regions of much humidity) the hay is safely in cock, covered with hay-caps, and has had a few days of curing, it is ready for permanent quarters. Remembering that the hay after its drying has begun should be handled as little as possible, the cocks have been made small enough so that two men may lift them bodily onto a wagon, if a wagon is used in the stacking. From the wagon, the hay is lifted by a hayfork to the stack. Or, more careful still, the farmer will use three slings to each wagon, which are lifted by a hook to the stack or mow. A sling is a heavy sheet the size of the wagon hayrack. One is spread on the bottom of the rack, another on top of the first one-third of the load, and the other on top of the second third. These slings are banded at the ends; the ends are drawn together and a third of the load lifted to the stack or mow, thus saving in some instances a third more leaves than any other method.
In arid and semi-arid territory, cocking and loading on or off wagons are dispensed with by dragging the rapidly dried hay directly to stacks built in the fields, where the lifting into place is done with great expedition by horse implements. A wheel-rake or “go-devil” is used to take at once several cocks, bunches or a part of a windrow to a nearby stack. Others use a rope to drag one or more large cocks to the stack; or, if the hay is to be taken from windrows, it may be put upon wagons with a loader. The loader is an excellent implement for handling timothy and clover, but is apt to shake off a good many leaves of alfalfa if the hay is very dry. The more common sling now on the market is made of ropes, four ropes the length of the hayrack and with ropes across like a rope ladder, and used to handle one-third or one-fourth of a load. Others are made like the carriers of a threshing machine with slats and ropes.
STORING IN THE BARN
The barn is the best place for alfalfa if all conditions are right. Cases of spontaneous combustion in stack and mow make farmers fearful of using the barn, especially for the first cutting, which is always most difficult to cure. There are certain conditions that must be observed if this hay is to complete its curing properly and safely in the mow. The bottom of the mow should be elevated at least a foot from the ground, floored with poles or joists, and they should be about two-thirds covered with boards or other material in such a way as to provide numerous openings or air spaces of considerable size. If the mow already has a tight floor, a part of the flooring should be removed before the hay is put in. Then a box or barrel should be placed in the center of the space and lifted up as the filling proceeds. If the mow is over thirty feet long, a second barrel should be used; that is, an air shaft should be left in about each fifteen to twenty feet. A layer of dry hay or straw sandwiched in about every four of five feet, as the mow fills, can be used to much advantage. If the mow is large enough in length and width, an excellent, safe plan is to spread the first cutting over the entire bottom, filling up to a height of four or five feet. The second cutting may be placed over this, on top of a layer of straw, and the third cutting over this. There is virtually no danger from spontaneous combustion or from mold if this is done, and the hay will be as bright and green and almost as rich in protein in January as when harvested.
J. W. Berry of Jewell county, Kansas, member of the board of regents of the state agricultural college, uses this method and bales his hay in October for the city markets, finding it in perfect condition. He puts his hay into the mow green but not wet, direct from the cocks, or windrows the day it is cut, in layers about four feet deep, with the slightest possible loss of leaves, no bleaching and no injury by dew. In 1905 he cut his alfalfa four times and stored the fourth cutting on top of the three preceding. He says that having an open floor and plenty of air from the outside, the hay can be put in the barn as described; that it should not be tramped, and it will settle and cure perfectly. The bottom layer or first cutting may show some dust when taken out if handled loose, but the color will be good and it will bale in with the other cuttings and all grade well. Hay cured in this way in 1904 graded “choice” in the St. Louis market.
Spontaneous combustion does not occur very often, but it is a possibility, and it is well to bear in mind that hay may be put in the barn too green. Observation teaches that it never takes place unless the hay has been put in the barn while containing a large amount of moisture, and piled too deep. Alfalfa and other clover hays may safely be put in the barn when they contain not to exceed 30 per cent of water. If, however, they contain much more than this there is considerable danger, especially where large quantities are put together, as is the case in large, deep mows and sometimes in large stacks. A practical test which may be safely followed is to take a handful of hay, twist it as hard as possible, and if no juice can be wrung out of its stems, it is dry enough to be put in the mow. Bunches of wet hay mixed with dry hay have often caused combustion. Such should always be discarded. It is poor policy to haul clover hays into a barn after sundown, as at that time it absorbs moisture from the atmosphere very rapidly.
It is a good plan for the haymaker to go into his mow every morning while the hay is curing and observe the conditions, but he should not, however, become alarmed if he finds that the top of his hay is very damp. This will always be the case, even if it was comparatively dry when put in; considerable heat develops during the night, which in turn evaporates moisture. The following morning, when the air is cool, a large percentage of this, especially if the mow is not well ventilated, is condensed and settles back on the hay. If the moisture, however, is excessive, it is a good plan to scatter a load of dry straw over the top. This will absorb the moisture in part, after which filling may be continued. In case a load has been put in the barn too wet, it should be spread to the outer edges, as there is much less danger of combustion at these places than in the center. In fact, the greatest heat is always developed in the center, where the so-called craters form, and from which moisture and gases are given off as a result of heating and oxidation below.
From the fact that spontaneous combustion cannot take place until the water has all been evaporated, there is no danger until three to four weeks after the hay has been stored. During the first week or so, if the hay heats to such an extent that there is danger of combustion, it is well to open up the center as much as possible and allow some of the heat to escape. If, however, the heating has continued much longer, it is dangerous practice to open the hay at all, because all that is needed, after the water has been evaporated, is air, or oxygen to support combustion, and the mass will at once burst into flames. Sometimes combustion takes place without flames, in which case the center of the mow gradually chars, leaving the hay there as black as charcoal, and without value.
Professor Cottrell, discussing spontaneous combustion (Kansas Bul. No. 114), says that all cases observed by him have occurred in hay of the season’s first cutting--cut at a time when the growth was rank and the curing most difficult. A period of wet, muggy weather in July or August increases the danger, which in dry weather seems much less. On account of previous trouble from heating in the barn, he had four years prior to writing stacked the first cutting out of doors and put only the later cuttings in the barn.
LOSSES FROM STACKING
The Colorado station found that the loss in feeding value from the hour of cocking to the hour of taking from the stack was 12.4 per cent, while the loss in hay stored in the barn was about 2.5 per cent. If we add to this the stacked hay lost by exposure, it will easily reach more than 20 per cent under average conditions while in many cases it would reach 40 per cent. This certainly represents an enormous waste, and by preventing it a man with any considerable area of alfalfa could soon save enough to pay for a barn.
THE HAY SHED
After a barn the next best place for storing hay is a shed with an adjustable or lifting roof. The ground dimensions should be ample to allow the first cutting to cover its floor and not be over five or possibly six feet deep when first put in. The bottom of the mow should be raised at least one foot from the ground, and the floor should have at least a twelve-inch air space about every three feet. Poles or joists covered with dry straw or old hay make a good floor. Spread the hay over the entire floor surface, on a layer of straw or other dry material. Use barrels or boxes as recommended for ventilation in the barn, and lower the roof until the second cutting. For such a roof the covering should be of some such material as ruberoid, and the rafters need not be heavy, except about every sixteen feet. Strong iron clamps can be easily adjusted to the supports. When the second cutting is ready, raise the roof, which should be in sections, and put the second crop on top of the first. Follow this plan for all other cuttings. If a shed with a stationary roof is used, dry straw, or hay, or corn stover should be put on top of each cutting to protect the alfalfa from rain. Almost any kind of a shed or covered structure is preferable to a stack.
CONDITIONS FOR STACKING
If the hay is to be stacked, there are also special conditions that the experienced insist should be observed. This is not to say that alfalfa hay stacked under conditions quite different may not give fair results, and much depends on the locality and the climate. However, the result desired is palatable and nutritious hay and not such as is moldy, stack-burned or dusty. Stacking the hay directly on the ground is sure to mean a loss of some portion of it. Elevate the bottom of the stack with poles, timbers or other like material; put straw at the bottom and, preferably, build a rick rather than a round stack. Start the bottom sixteen or eighteen feet wide and build straight up instead of tapering or slanting the sides, as alfalfa hay will not shed rain or snow water. If there is much moisture and it is convenient to do so, use a layer of straw or dry hay of some kind every five or six feet. Keep the stack full in the middle, or a little higher than the sides, and well tramped all the time. When the stack has reached the desired height, top it out with slough grass, or dry timothy or prairie hay, or very green alfalfa, or protect with tarpaulins or boards; the boards may be nailed and chained together, lapped and weighted at the corners, making a very satisfactory roof. If these directions are followed, the losses will be kept at a minimum. The Kansas experiment station authorities say that in an experiment made there an application of salt to the hay when being stored seemed to decrease, if anything, rather than increase its feeding value. Lime applied in stacking is claimed to have a beneficial effect in preventing mold.
The raised bottom and layers of straw are useful accessories for the stack, shed or mow, while the barrel or other ventilating contrivances should not be overlooked in either sheds or mows.
STORING AS SILAGE
As land values increase and farmers and dairymen come to more fully appreciate the worth of green feed in winter, the silo grows in estimation. Eastern farmers who keep cows or young stock of any kind use the silo more or less, to conserve for winter the value of both green grass and corn. Alfalfa makes an excellent silage, but its peculiar quality of retaining its green food value, as hay, when properly cured, makes its ensiling much less a necessity. Alfalfa hay taken from the mow in February, green, appetizing and nutritious, falls little, if any, short of serving the purposes of silage.
OFTEN PROFITABLE TO ENSILE THE FIRST CUTTING
However, it is not infrequently found that the first cutting of alfalfa may be ensiled directly from the field at a season when rains would prevent its proper curing for hay. If this is done, it is important that the rakes and wagons follow very closely after the mower, as even two hours of sun exposure in the swath lessens its value for silage. Men who have cut alfalfa during a light rain and raked and hauled it directly to the silo have reported satisfactory results. Others report having cut it in the late afternoon and, the next morning, after a heavy rain, raked and hauled it to the silo while dripping wet. Therefore the farmer in the eastern and southern states, in the Pacific Northwest, or even in the central states may, on occasion, plan for the ensiling of his first cutting, in the faith that it will come out in fine condition if his silo is properly constructed.
SUGGESTIONS FOR SILOING
The Kansas and Colorado experiment stations recommend that alfalfa for silage should be cut into lengths of, say, two inches. Long alfalfa does not pack sufficiently close in the silo, and when so stored the loss is much more than if in short lengths. It should always be heavily weighted and great care taken to pack it well at the outer edges. Round silos are most approved because their contents are more readily compacted. The points urged by Professor Ten Eyck, of the Kansas experiment station, are, (a) getting the alfalfa to the silo quickly after mowing, allowing little, if any, curing; (b) cutting the alfalfa into short lengths rather than storing it whole; (c) packing it tightly, and weighting heavily when all in. He says, however, that if the weather will permit proper curing of the alfalfa, it will make more valuable winter feed as hay than as silage.
BALING
The increasing general demand for alfalfa hay in the city markets of the United States, away from the distinct alfalfa regions, has made finding a method of preparing it for economic shipment of much importance. The compressing of timothy and prairie hay has become so general that alfalfa raisers and shippers are also following this method. The problem of saving the leaves, and, at the same time, being able to market alfalfa green, has been hard to solve. Baling it uncured meant mold, and baling it when very dry meant loss of leaves and, hence, loss in feeding and selling value. The Kansas station a few years ago carried on a series of experiments extending over several years from which the conclusion was that the only safe procedure is to cure carefully in the field, put in the stack or mow, and bale after the final sweating--say thirty days. Most of the hay cured and baled in the field was moldy or brown. It is possible, however, that a more careful curing, the use of hay-caps, letting it stand for several days in cock, baling, and then storing in an open shed, the bales stacked on edge and separated about every third layer by poles, rails or rafters, might result in securing high-grade hay direct from the field without stacking. Seemingly it will never be safe, away from the semi-arid regions, to bale the first cutting from the field; but the secret may yet be found of so baling the second and third cuttings and obtaining prime hay. Its doing is not likely to prove satisfactory, however, except in the drier portions of the alfalfa district where large cocks of, say, 500 pounds may be made and left standing for several days before baling. But baling is not likely to be largely followed except in territory where extensive areas are devoted to alfalfa. When practically every farmer in the United States has his field of alfalfa as he now has of corn, cotton or clover, the greater part of the product will be fed on the farm and the surplus hauled direct to the local markets. Western Kansas and Nebraska alfalfa raisers are having this problem solved for them by the growing practice of stockmen shipping cattle and sheep from the mountain ranges to be fed or fattened where the hay is raised, and hauled directly from the stack to the feed lots.
POOR STUFF
Hay dealers report that much of the baled alfalfa shipped is poor stuff. They advise small bales, weighing about sixty to eighty pounds; about 27 to 36 inches long, 14 or 15 inches thick and 18 inches high when laid on edge. They also recommend that in loading a car the bales be placed on their edges instead of on the sides, as they are less liable to heat. The problem of the city hay dealer is to sell what he has received, with satisfaction to the purchaser and profit to himself and to his client. If he receives moldy, dead hay, with little protein value, he is not able to please his customer, not able to secure a good price, and hence, not able to please either shipper or buyer. The farmer who raises and ships hay and receives two dollars less per ton for it than his neighbor, should learn by such money losses the necessity of harvesting and storing his product properly.
A. S. Hitchcock says in Farmers’ Bulletin No. 215, of the United States Department of Agriculture, that the baled hay for export to Alaska, Hawaii, and other trans-oceanic points is compressed by the process known as double compression, done with baling machines operated by electricity or hydraulic power. The hay obtained by loosening the ordinary bale is compressed into square or cylindrical packages of smaller and more compact form than the ordinary bale. The hydraulic presses used for making the round bales are similar to those used for the cylindrical bales of cotton. The measurements of the different types of double-compressed bales are about as follows: Square, 15 by 18 by 38 inches, weight 160 pounds; square bale for Alaskan trade, 14 by 18 by 26 inches, weight 100 pounds; round bale, 2 feet in diameter, 24 inches long, weight 145 pounds, or 36 inches long, weight 260 pounds. The saving of space in transit may best be understood by comparing the weight and cubic contents of baled and compressed hay. The ordinary bale occupies 140 to 160 cubic feet per ton, and round bales 55 feet per ton. The most essential point in loading new hay into a car is to see that it is not loaded flat, that is, with the flat sides of the bale up. When loaded in this way, with the smooth sides of the bales together, no space is left for air and as a consequence the hay not infrequently heats. A properly loaded car has the edges or rough sides of the bales together. This allows air space between the bales and always prevents danger of heating.
A new machine is being introduced which makes (from the windrow if desired) a cylindrical bale, with a hollow space lengthwise through its middle. This open space must undoubtedly facilitate the curing of hay baled before sufficiently dry. The machine has a capacity of four to six tons per hour, makes a bale thirty-six inches long and twenty inches or less in diameter, as desired, bound with twine, and the hay can be eaten from the bale, with a minimum of waste, without unfastening. This baler, if it justifies the claims of its inventors, should be very useful to those who grow alfalfa for marketing away from the farm.
GRADING AND GRADES OF ALFALFA HAY
On account of the increasing demands for alfalfa hay, and growth in the business of selling it in cities, dealers have found that the establishment of some uniform and generally accepted method of grading the different qualities was a business necessity. As a result of this its consideration was taken up by the National Hay Association’s committee on grades and upon the committee’s recommendation the association in 1905 adopted the following classification:
Choice Alfalfa--Shall be reasonably fine, leafy alfalfa, of bright green color, properly cured, sound, sweet and well baled.
No. 1 Alfalfa--Shall be coarse alfalfa of bright, green color, or reasonably fine, leafy, of good color, and may contain five per cent of foreign grasses; must be well baled, sound and sweet.
No. 2 Alfalfa--Shall include alfalfa somewhat bleached, but of fair color, reasonably leafy, not more than one-eighth foreign grasses, sound and well baled.
No. 3 Alfalfa--Shall include bleached alfalfa, or alfalfa mixed with not to exceed one-fourth foreign grasses, but when mixed must be of fair color, sound and well baled.
No Grade Alfalfa--Shall include all alfalfa not good enough for other grades, caked, musty, grassy, or threshed.
_CHAPTER IX._
Pasturing and Soiling
PASTURING NOT ALWAYS ECONOMY
Its perennial nature and the reports of its wonderfully productive and nutritive qualities might naturally lead the farmer, without better acquaintance, to suppose that with alfalfa he has perpetual pasture; that he will open the gate to his live stock in the spring, send for the butcher or buyer in October, and then winter in luxurious leisure. But he finds that the easiest is not always the most profitable way. Pasturing with any stock is an expensive and extravagant method of gathering a valuable crop from high-priced land. Where land is cheap and pasture is wild, stock are not expensive help in gathering a cheap crop; but it is easily demonstrated that when land values are high and a crop value is in a like altitude, man with machinery can do the harvesting more economically than can a cow, a steer or even a sheep.
ALFALFA A TENDER PLANT
In some respects alfalfa does not seem to be a natural pasture plant. The stems are delicate, it will not thrive in a hard, trampled soil, and the crowns when broken off will not revive; if some of the plants bloom and drop their flowers early in the season, they lose vigor and many of them die. These peculiarities would at least indicate that it should not be pastured at all until it has become established, has its crowns well spread, has abundant stems and its roots have a strong start on their underground career. Not an animal should be turned on an alfalfa field until the second or third year if it is desired that the stand endure for several years, nor should it be pastured too early in the spring or too late in the fall. There should be something of a growth left for winter protection. Careful alfalfa raisers are known who pasture their older fields, but never put on a full quota of stock until they have cut over the field when the plants are first coming into bloom. They insist that this cutting invigorates and gives the plants new life. They then pasture quite closely until some time in September, after which there is time for some final growth for winter protection.
A GOOD SWINE PASTURE
A chief exception that most farmers insist on is that it is an excellent pasture for pigs and, if it is not stocked too heavily, its use for grazing young swine will not largely decrease the yield of hay. Its marked protein property seems to give to the pigs a superior growth of frame and flesh. Farmers claim that pigs a few weeks old turned into an alfalfa field derive almost their entire living from it and leave the sows two weeks earlier than other pigs, coming in September with a gain of from 100 to 125 pounds, while the field has yielded its three cuttings of hay. Of course, if too many pigs are grazed, the hay yield will be less. But even here the question of labor _versus_ hay must be considered.
DANGERS TO CATTLE AND SHEEP
The greatest objection to pasturing alfalfa is its bloating cattle and sheep. Hogs and horses do not suffer, although a Texas farmer writes that he lost some pigs from something similar to bloat that he attributed to the alfalfa. But this may be considered questionable, as thousands have regularly pastured hogs and horses on alfalfa with no symptoms of bloat. From hundreds of inquiries sent out by the experiment stations, it is determined that over ninety per cent of those who have pastured cattle or sheep on alfalfa have lost one or more animals by doing so, yet many report having pastured the same kind of stock on alfalfa for years, regularly every season, without loss. Careful investigations have been made with the purpose of finding out why some have been immune while others suffered. Since, in the cases of loss, only a small proportion of the animals pastured are affected, it may be inferred that much depends upon the nature and condition of the individual animal. Practically every western station has carefully experimented, following the directions of men who have been free from loss, yet it has cost each station valuable animals.
Horse stock of all ages find alfalfa pasturage conducive to growth, fattening, and their general health. If the foliage is short and scant, horses are severe on the fields used in winter because they are able to crop close, and not infrequently paw loose dirt away from the plants, biting off the crowns a fourth or even half inch below the surface of the ground. It is easy to understand the loss of the bud or growing point may be detrimental to the growth and usefulness of the plants, causing many to die, resulting in bare spots later to be overgrown by noxious weeds and grasses. After the damage is done there remains no remedy but to plow up the field and reseed, or to disk thoroughly and then reseed the bare spots. If the field has not deteriorated too much, the latter is much to be preferred. By diligence and careful treatment, or prompt action closely following any encroachments upon the life of the plants, the quality and yield may be maintained and the profits relatively enhanced. Alfalfa has wonderful recuperative powers, but continuous nipping of the crowns will do most serious harm and eventually decrease the yield not a little.
EXPERIENCES WITH CATTLE
One man reports turning eighty steers into one alfalfa field where there was running water, and a second herd into another field without running water, but water ran through a wild grass meadow adjoining, into which this herd was driven every afternoon and turned back into the alfalfa the next morning. The first herd suffered no loss, while five valuable animals died in the second field on the second day, before they could be removed. When all were put into the first field there was no more bloat. Another reported turning cows into a small field where there was a trough full of water all the time. Here, as in the case of the steers, a full feed was given before the cows were turned on the alfalfa. Before noon one cow had to be relieved by a trocar, and another by being driven rapidly about the field. The wherefores of such occurrences present a problem yet to be solved. Certainly there is more danger in pasturing cows and sheep on alfalfa than most people care to risk. Aside from the financial loss, there is, also, the humane side of the question.
A very fair statement, representative of those made by parties who pasture cattle on alfalfa without losses from bloat, is the following, given to the author by Mr. S. C. Hanna, an extensive and reputable breeder of Shorthorns, in Elk county, (southern) Kansas, who says:
“I have been pasturing alfalfa successfully without bloating my cattle for a number of years; in fact, I have never lost an animal from alfalfa bloat. As I am raising high priced, pure bred Shorthorns and graze them on my meadows more or less at all times of year, I always sow a good mixture of English blue-grass (_Festuca elatior_) and orchard grass (_Dactylis glomerata_) with it, making alfalfa the base and principal seeding. I am very partial to orchard grass in this mixture because it makes considerable hay, and springs up so quickly after each mowing. In this section orchard grass is a stayer, and will hold its own against all comers.
“I always am cautious when we first turn the cattle on alfalfa, seeing to it that they have a good fill on something else beforehand, and hold them at first on some part of the field where the mixed grasses are the thickest, so they can graze there first. In twenty minutes they will be safe to go where they wish, and may be allowed to run at will thereafter. I find, however, that on the clear alfalfa meadows there is almost no danger from bloat after the plants have begun to bloom. I usually have some hay stacked in the pastures, that the cattle may run to. I have, however, pastured alfalfa in all stages where there would be perhaps twenty acres of alfalfa in one place, and some prairie grass and also tame grasses in the same enclosure, and had no bloat. This has been, too, sometimes in May and June, when showers were frequent and the alfalfa most succulent. It would seem that the cattle will take care of themselves if they have a good chance. I usually superintend these changes personally, and see that all conditions are right.
“I find we get almost as much hay from the mixed fields as from the exclusively alfalfa meadows, and the fall aftermath is much better. The theory that alfalfa will not flourish with the other grasses is wrong. My favorite meadows contain a mixture of this kind, including some red clover, and I have cut four good crops of hay from them this season, after pasturing moderately from March 15 to May 1. I always get the stock horses and mules on pasture by March 15, and the cattle about April 1, and move them to wild grass prairie pasture about May 1, except a few that we will keep on the meadows all season. These we change from one field to another when the alfalfa becomes tall enough to be trampled down or damaged.
“If my object was only to raise hay for market, I would sow the alfalfa alone and keep the stock off altogether, but for my purpose I prefer a mixture. By doing my way I never miss a good stand, and the mixture keeps down the foxtail and crab grass. I have been sowing this mixture for about fifteen years, and have over 300 acres.”
Mr. J. F. Stodder of Cowley county, Kansas, a prominent breeder of pure bred cattle, makes this statement to the author, which is simply further testimony that a mixture of other grasses with alfalfa intended for grazing greatly diminishes, if it does not entirely eliminate, the risk and dangers of bloat:
“I have several fields of mixed grasses. These contain enough alfalfa so that we cut them for hay at regular times, and the proportion of grasses and alfalfa is largely in favor of the latter. In such fields as these I pasture cattle at will, and have never seen any evidence of bloat therefrom. But my experience with the straight alfalfa fields leads me to be very cautious. I find that I can pasture them at times without danger, and at other times a large proportion of the cattle will bloat. It is possible that I have made the statement that I never lost cattle by pasturing alfalfa, which is true, because we have always been lucky enough to discover the ailing animals in time to give them relief.”
Mr. F. S. Kirk of Oklahoma, mentioned in Chapter III, pastures his cattle on alfalfa in fall and spring, but does not give them access to his meadows in the morning until the dew has dried off, and for only twenty or thirty minutes the first day or two; then for an hour or two for a few days, and after that they are left in the pastures until sundown.
GENERALLY DANGEROUS TO SHEEP
Experiments with sheep seem to be even more disastrous than with cattle. In an investigation conducted by the Colorado station, losses were reported by nearly every man who had pastured sheep on alfalfa. Some lost but one or two, while others lost forty or fifty. A few reported that each spring they lost a few sheep the first day they were on the pasture, and then no more, and that the losses of old sheep were of less importance than the growth of the lambs, these being seldom affected by bloat. Most, however, advised that the old should not be turned on alfalfa under any circumstances, but that lambs, if well fed in the morning, let on the alfalfa after the dew was off and then kept there night and day would do well, and the loss be smaller than that in a normal season from other causes. J. E. Wing states that his loss from pasturing lambs on alfalfa in Ohio is less than it formerly was from one or two parasitic diseases that never trouble alfalfa-pastured lambs. He gives his lambs a full feed in the morning, turns them on the alfalfa field about ten o’clock, and leaves them there continuously until September. He begins the pasturing just before the seasons first growth of the alfalfa blooms.
While by no means without risk, pasturing sheep on alfalfa is not always necessarily fatal and the following, related in the _Breeder’s Gazette_ by Mr. C. H. Williams of Powell county, Montana, is interesting:
“We have been pasturing sheep in large numbers on alfalfa for the past eight years. We have lost from bloat as many as 26 in one day from a flock of 1600, but we seldom lose one now. We find they are much more apt to bloat on windy days; more especially if the wind blows from the south and is soft and balmy. This may seem strange, but we believe it a fact. We have in our employ a shepherd who has during the greater part of his life herded sheep on alfalfa in the vicinity of Pau and d’Oloron, France. The day we lost 26 ewes from bloat this man was several miles from the home ranch. When visited by the camptender he remarked: ‘This will be a bad day for the old ewes on the alfalfa.’ Why so? ‘Because the wind is soft and warm,’ said he. That afternoon we found 26 dead.
“Our French shepherd has a simple and never failing remedy for bloat from alfalfa or clover. It is simply a half-pint of sweet milk administered to the animal when found bloated. I saved a fine ram lamb the other day. He was fearfully bloated, unable to walk and scarcely able to breathe. I found an old can in the road, hastened to the pasture, milked a half pint of milk from a cow, set the lamb on his rump and poured the milk down his throat. In a half hour he was all right and following the flock. Milk from a ewe will answer just as well. We have adopted the following rules: Never allow the sheep to go on alfalfa pasture when very hungry; if possible get a little dry feed in their stomachs in the morning before going to the alfalfa; watch them closely on windy days, and have the herders carry a bottle of sweet milk.”
A POSSIBLE EXPLANATION
The most of the losses reported were of animals which had been taken off the pasture at night and turned back the second morning when hungry and eager to graze. Yet there are reports of severe losses the first day, even after a full feed. Possibly it will be found that the animals that suffer from bloat are not in good physical condition, and are more nervous and greedy in their habit of eating than those not affected. It may be that an intelligent sorting of the animals to be turned on the pasture might save loss. It is also quite generally believed that alfalfa growing on uplands is less liable to cause bloat than that raised on bottom lands.
RULES FOR PASTURING
The most generally approved rules in regard to pasturing are:
At the beginning of the pasturing season give animals a heavy feeding in the morning before turning upon the alfalfa.
Have water in the pasture all the time.
Keep the animals in the pasture night and day, after they have become accustomed to it, until removed permanently.
Use upland in preference to bottom fields for pasture.
Watch the stock closely the first few days and remove permanently animals that show symptoms of bloat.
Sow blue-grass, brome grass, or meadow fescue with alfalfa in fields intended for permanent pasture.
The following valuable information upon bloat (_tympanitis_) and its treatment was prepared by Nelson S. Mayo, formerly professor of veterinary science at the Kansas agricultural college:
“Bloating, in all cases, is accumulation of gas in the stomach or intestines, or both, but more particularly in the paunch (rumen). This gas is produced by a fermentation, similar to that observed when cider is ‘working’ and the gas escapes in bubbles. There is usually a small quantity of gas given off from the food during normal, healthy digestion, but so small that it causes no trouble, and passes off readily through the intestines, though sometimes from the stomach, up the esophagus, and out of the nose or mouth--‘belched up,’ as it is commonly expressed. These gases which cause an animal to bloat are generated in considerable quantities if a large amount of juicy, green food is eaten. Alfalfa, clover and frozen roots are very liable to produce bloating.
“It is well known that only part of the animals in a herd pasturing upon clover or alfalfa bloat; so the blame cannot be laid entirely upon the food, but is probably the result of a slight derangement of the digestive organs, not ordinarily noticed, but easily aggravated by certain foods which ferment easily. Animals that are ailing are very liable to bloat when turned on alfalfa pastures. Alfalfa and clover are much more liable to produce bloating if wet with rain or dew, and especially hoar frost, and animals are more apt to bloat if turned into the pastures when very hungry, as they gorge themselves, and the food is not properly masticated. Hence, cattle should not be allowed to go hungry to the pastures.
“It is generally believed by those who have had considerable experience in pasturing clover or alfalfa, that cattle and sheep are less liable to bloat if they have free access to dry food, such as hay or straw. Common bloating, or hoove, occurs in animals having a compound stomach and that chew the cud--ruminants, as they are called. Of our common domestic animals, cattle and sheep belong to this order.
“One of the first symptoms noticed is that the animal stops feeding, and remains lagging behind or stands by itself. Rumination, or chewing of the cud, is suspended; the animal appears dull and listless, the back slightly arched; the whole abdomen or belly is distended with a prominent swelling on the left side just forward of the point of the hip. If the swelling is tapped lightly with the fingers there is a hollow, drum-like sound; hence the technical name, _tympanitis_.
“The rumen being distended with gas not only makes the animal appear much fuller than usual, but it presses forward on the diaphragm, or ‘midriff,’ and this presses against the lungs, and interferes seriously with the animal’s breathing. The breath is short and rapid. The animal often grunts, or moans, with each breath. The animal’s nose protrudes, and there is a driveling of saliva from the mouth. Sometimes there are quite severe colicky pains, shown by the animal’s kicking at its belly and stepping about uneasily. Sometimes, also, the pressure is so great as to cause eversion or bulging out of the rectum. The symptoms of bloating are so prominent, especially when the history of the case is taken into account, as to make this disease very easy to recognize, even by an ordinary observer.
“When animals die from bloating, death usually takes place in the following manner: The diaphragm is pressed against the lungs so hard that the animal cannot breathe, and it dies of suffocation. Animals usually remain standing until near the end, when they gradually lose consciousness, stagger, and fall, and in falling rupture some of the vital organs.
“Treatment must depend somewhat upon the condition of the animal. If the animal is badly bloated, with labored breathing and staggering gait, energetic measures must be resorted to at once. The best and most satisfactory treatment for bad cases is tapping. This consists in making a hole through the skin and muscles, over the prominent swelling on the left side, into the rumen or ‘paunch,’ thus allowing the gas to escape at once, relieving the animal.
“The best method of tapping is by means of an instrument called a _trocar_ and _cannula_. A trocar is a sharp-pointed instrument, five or six inches long, and about the size of a lead pencil, with a handle at one end. Over the point of the trocar slips a tube, called a cannula, not quite as long as the trocar, with a wide flange around the upper end of the tube, as shown in the illustration herewith.
TROCAR AND CANNULA
“To use a trocar and cannula, proceed as follows: Tie the animal so it cannot get away. With a sharp knife, make a small incision through the skin over the prominent part of the swelling on the left side. This incision should be made about half way between the point of the hip and the last rib, and should be large enough to admit the trocar and cannula readily. The incision should be made quickly; then the animal will not notice it. After the incision is made the trocar and cannula are pushed quickly in and directed downward, inward, and forward; push the trocar in until the flange of the cannula rests against the skin. Withdraw the trocar and the gas will rush out; that is, it usually does so; occasionally, however, the end of the cannula is plugged up with green food. This can usually be remedied by pulling out the cannula part way, or pushing the trocar in again and withdrawing it. If this doesn’t work, tap the stomach again in another place, using the same hole through the skin. The escape of gas is usually accompanied by a small quantity of green food.
“If a trocar and cannula are not available in an urgent case, a knife can be used very successfully--a good-sized pocket knife blade, pushed quickly through the skin and muscles, in the same manner as described for the trocar and cannula. Care must be taken that the sharp edge of the blade is not turned towards the animal’s tail, as it sometimes jumps forward, and a much larger hole is cut than was originally intended.
“A careful and observing stockman of Colorado, who has had a large experience with alfalfa bloating, informs me that he prefers a moderately small, sharp butcher knife to either a trocar and cannula or a pocket knife. It gives relief quicker and with no bad effects. Sometimes, if the opening through the skin is small, made by a small knife, a quill or small tube is fastened in to keep the incision open, so the gas can escape. It is usually necessary to keep the incision open for several hours. The only bad result of tapping is that occasionally green food gets outside of the rumen into the abdominal cavity in sufficient quantities to cause inflammation and death; but if the operation is intelligently performed, these bad results are extremely rare--probably not more than one case in 100. If the weather is warm, care should be taken that flies do not bother the wound in the skin.
“If the case is not severe enough to warrant tapping, the following remedies will be found useful: A gag made by winding a good-sized rope back of the horns and through the mouth, or a bit, made of a piece of wood the size of a fork handle, can be tied in the animal’s mouth. The bit should be smooth, to prevent injuring the mouth. Then a small handful of salt should be thrown well back on the roots of the tongue. This causes the animal to work its tongue, increases the flow of saliva, and thus favors the regurgitation, or gulping up, of the gas. The salt and saliva swallowed help to stop fermentation.
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The Book of Alfalfa: History, Cultivation and MeritsChapter IV: Part 4
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