77 



Digestible nutrients in rations fed. 



Ration. 



S 



WolfE-Lehmann 



Standard 



'•Farm-grown," 1900., 



''Oil mill," 1900 



"Farm-grown," 1901, 



"Oil mill," 1901 



Rye & cotton s., 1900. 



Rye & c. s. meal, 1900 



Lhs. 

 1:5.7 



1:7.3 



1:3.7 



1:6.6 



1:3.2 



1:6.5 



1:4.0 



Speaking in general terms, protein is that part of the 

 food that goes to make milk, muscle, bone, etc., while 

 carbohydrates ( starch, sugar, etc. ) and ether extract 

 ( fat, etc. ) are used as fuel and to give force . Pro- 

 tein is nitrogencnis material, and carbohydrates and 

 ether extract are non-nitrogenous. Both classes of com- 

 pounds must be present in the food to keep the body in 

 its normal working condition. 



The average daily ration per cow was as follows : 



Cotton seed ration — Cotton seed meal ration — 

 5.6 lbs. cotton seed. 4.4 lbs. cotton seed meal. 



3 7 lbs bran and corn mixture. 5.0 lbs. bran and corn mixture 

 54 lbs. green rye. 52 lbs. green rye. 



It should be noticed that the cowing eating the cotton 

 seed ration could never be brought up to full feed, or the 

 amount necessary to produce a full flow of milk; in one 

 experiment their ration dropped nearly down to half 



