DISEASES OP YOUNG CALVES. 



253 



In these examples the deterioration of the milk in casein on the less 

 nutritious winter feeding is very marked, although the relative amount 

 of butter remains almost unchanged. In the case of the goat the 

 result is even more striking, the beet diet giving a very large decrease 

 of both casein and butter and an increase of milk sugar. 



The following table, condensed from the Iowa Agricultural Experi- 

 ment Station Bulletin, gives the results in butter and total solids when 

 the same cows were fed on different rations in succession. Each cow 

 was fed a daily ration of 12 pounds corn fodder and 4 pounds clover 

 hay, besides the test diet of (1) 12£ pounds corn and cob meal, and (2) 

 10 pounds sugar meal — a product of the glucose manufacture. This 

 special feed was given seven days before the commencement of each 

 test period to obviate the effects of transition. The analyses of the 

 special rations are given below: 



Constituents. 



Corn and 

 cob meal. 



Sugar 

 meal. 



Moisture 



Salts 



Pat...: 



Carbohydrates (heat formers) 

 Woody fiber 



Proteids (flesh formers) 



Per cent. 



13.37 

 1.43 

 2.81 



65.99 

 8.03 

 8.37 



Per cent. 

 6.10 

 1.17 

 11.16 

 58. f 6 

 8.61 

 20.27 



The great excess of fat and nitrogenous or flesh-forming principles 

 in the sugar meal is very evident. 



Here we see in every instance a marked relative increase of the but- 

 ter, and to a less extent of the other milk solids whenever the sugar 

 meal — rich in fat and albuminoids — was furnished. The opposite 



