254 



DISEASES OF CATTLE. 



The condition of tlie nursing cow and her milk is another potent 

 caiise of trouble. The feed (if the cow is important. The influence 

 of this is shown in tire following tables: 



Iiiflucticc of feed on milk. (From Becguerrl and Verntjis.) 



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

 nutritious winter feeding is verj^ marked, although the relative 

 quantity 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 second table following, condensed from the Iowa Agricultural 

 Experiment 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 glocuse manufac- 

 ture. This special feed was given seven days before the commence- 

 ment of each test i^eriod to obviate the effects of transition. The 

 analyses of the special rations are given below : 



Analytics of special rations. 



Constituents. 



Moisture 



Salts 



Fat 



Carbohydrates (heat formers) 

 Woody fiber 



Proieids (desli formers) 



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

 in the sugar meal is very evident. 



