Wisconsin Dairymen's Association / Fortieth annual report of the Wisconsin Dairymen's Association : held at Beloit, Wis., November, 1911. Report of the proceedings, annual address of the president, and interesting essays and discussions relating to the dairy interests
Glover, A. J.
Silage and alfalfa for dairy cows and their values as compared to other crops, pp. 91-96 PDF (1.2 MB)
Wisconsin Dairymen's Association. 93 with a few others. It requires pretty good land to produce 1% tons of timothy hay per acre. In 1% tons of timothy hay there are 1443 lbs. nutrients, and 84 lbs. digestible protein. It is not unreasonable to expect that an acre of alfalfa will produce 10 times more protein than an acre of timothy. Perhaps it will be interesting to learn the kind of a ration that may be made of silage and alfalfa. It has been found that an animal fed nothing but these feeds will consume about 40 lbs. of silage daily and 16 lbs. of alfalfa hay. In the following, I tabulate the pounds of feed used, dry matter and digestible nutrients in them. Nameof Feed. Lbs. Dry Matter. Lbs. Carhohs Fat Lbs. Silage................... 40 10.6 .56 5.6 .28 Alfalfa ................. 16 14.8 1._7 6.3 .10 Total nutrients.... .......... I.............. 2.33 11.9 .38 According to Professor Haecker's feeding tables, a cow producing 25 lbs. of 4 per cent milk requires 1.9 lbs. digestible protein, 12.82 lbs. digestible carbohydrates and .5 lb. digestible fat. It will be noted that a ration of silage and alfalfa supplies more protein than necessary for 25 lbs. of 4 per cent milk and not quite as much carbohydrates or fat as the animal needs, but since protein will take the place of carbohydrates, the ration contains enough nutrients to produce 25 lbs. of 4 per cent milk. There is no question when there is an abundance of grain at reason- able prices, that it pays to feed some when cows are producing 20 lbs. or more of milk per day, but when less than this is produced, it is very doubtful whether it pays to feed any concentrates when there Is plenty of good silage and alfalfa at the farmer's command. There is another point which we might consider. One acre of ground yielding four tons of alfalfa will support an animal with 16 lbs. a day for 500 days. In other words 1.37 acres of land on which is grown corn and alfalfa will produce enough feed to keep a cow 365 days; 1.37 acres of blue grass pasture supports an animal on the average but 78 days. The severe drought of the past summer Is not so long ago but that most of us remember the difficulty of supplying cows with succulent feed during that period, but farmers who had grown alfalfa and pro- vided themselves with silage, did not notice the effects of the drought like those who were depending entirely upon pasture to feed their animals.
Based on date of publication, this material is presumed to be in the public domain.| For information on re-use, see http://digital.library.wisc.edu/1711.dl/Copyright