2 



lbs. of dry matter, .36 of a lb. of protein, and 5.16 lbs. of carbo- 

 hydrates and fat. An experienced feeder also knows that a cow 

 will eat about 10 lbs. of clover hay per day, in addition to the 40 

 lbs. of silage. On page 144 of the bulletin, this amount of clover is 

 found to contain 8.5 lbs. of dry matter, .68 of a lb. of protein, and 

 3.96 lbs. of carbohydrates and fat. Adding together the dry mat- 

 ter in both silage and hay we have 16.9 lbs., which is Y.l lbs. short 

 of the 24 lbs. needed to make the ration bulky enough. This 7.1 

 lbs. of dry matter will be supplied in the grain. 



Nearly all grains are about nine-tenths dry matter, so that we 

 shall need 8 lbs. of grain to make a ration of the proper bulk. It is 

 generally a good plan to have two-thirds of the dry matter in a 

 ration come from coarse fodder and the remainder from the grain. 



We have four kinds of grain in the bins, and the 8 lbs. 

 needed for the ration should be so divided among these four 

 grains as to make a ration which will give the most milk. Sup- 

 pose we use 3 lbs. of buckwheat middlings, which the chemist linds 

 to contain 2.61 lbs. of dry matter, .66 of a lb. of protein and 1.368 

 lbs. of carbohydrates and fat (page 148) ; 2 lbs. of wheat bran, con- 

 taining 1.76 lbs. of dry matter, .224 of a lb. of protein, and .906 of a 

 lb. of carbohydrates and fat (page 147) ; and 2 lbs. of corn meal, 

 containing 1.78 lbs. of dry matter, .158 of a lb. of protein and 1.528 

 lbs. of carbohydrates and fat (page 145). This leaves only 1 lb. 

 of cottonseed meal to make the 8 lbs. of grain. This contains 

 .92 of a lb. of dry matter, .372 of a lb. of protein, and .444 of a 

 lb. of carbohydrates and fat. Adding all of these figures together, 

 we have this table : 



40 lbs. corn silage 



10 lbs. clover hay 



3 lbs. buckwheat middlings 



2 lbs. wheat bran 



2 lbs. corn meal 



1 lb. cottonseed meal 



Total 



Dry matter. 



Lbs. 

 8.40 

 8.50 

 2.61 

 1.7G 

 1.78 

 .92 



23.97 



Protein. 



Lbs. 

 .360 

 .680 

 .660 

 .244 

 .188 

 .372 



2.474 



Carbo- 

 hydrates 

 and fat. 



Lbs. 

 5.160 

 3.960 

 1.368 



.906 

 1.528 



.444 



18.366 



562 



