1895.] PUBLIC DOCUMENT — No. 33. 57 



In ration a 35 quarts more of milk were produced, at .13 cent 

 less per quart tlian in ration h. The net cost of the milk 

 was correspondingly less. In ration a also 8 pounds more 

 of butter fat were produced at 1.5 cents less per pound. 

 These figures show the butter and milk producing power of 

 the Buflalo gluten feed over the corn meal, or, more cor- 

 rectly speaking, the influence of even .25 pound more of 

 digestible protein and also possibly the eflect of the increased 

 fat, in the daily fodder ration. 



Series III. a and b. 



The periods in this series lasted only nine days. In 

 ration a 2.91 pounds of digestible protein were fed and in 

 ration 6 3.76 pounds. Here again we see the influence of 

 the extra amount of protein in the fact that 51 quarts more 

 of milk were produced during the nine-day period (equiva- 

 lent to 78 quarts during 14 days), at .1 cent less per quart. 

 The net cost of the milk in ration a was correspondingly 

 less. In ration a 5.7 pounds more of butter fat were pro- 

 duced than in ration h, at 1.43 cents less per pound. 



So far, then, as this one set of experiments is con- 

 cerned, the largest amount of protein fed daily, viz., 3.76 

 pounds, was the most economical*. It must be admitted 

 that in feeding so much protein the animal is asked to 

 do her best, and it is a question for how long a time 

 she would be able to continue. The writer believes, how- 

 ever, that during the late fall and winter months cows 

 that are in good condition can be fed from 2.5 to 3 

 pounds of digestible protein daily with profit. It probably 

 would not be advisable to feed over 2.5 pounds daily to 

 animals that are soiled during the spring, summer and early 

 autumn. 



Farmers are especially cautioned not to feed too large an 

 amount of grain during the summer that contains a high per- 

 centage of fat. A large amount of fat in the daily ration at 

 this season tends to overheat the animal and produce inflam- 

 mation of the milk glands. Among such grains may be 

 mentioned cotton-seed meal, Buffalo gluten feed, cream 

 gluten meal, King gluten meal, etc. Not above 4 to 5 



