138 



Fecd^ and Feeding. 



lustrated by an experiment at the Ontario Agricultural College' 

 by Dean, in M-hicli six cows were divided into three lots of two 

 each. The ration marked I consisted exclusively of coarse feed, 

 supplying more carbohydrates and less protein than the cow 

 required. It contained a large quantity of inert matter. (136) 

 Eation II contained an ample supply of carbohydrates and an 

 over-supply of protein, the latter being contained in rich, heavy 

 oil meals. Eation III contained an excess of nutrients. By 

 alternating the rations for the three groups of cows, the influence 

 of a decreasing milk flow was eliminated from the results, which 

 were as follows: 



Feeding an improperly compounded and a well balanced ration to dairy 

 cows — Ontario Agricultural College. 



Under A is given the preliminary ration fed to all the cows; 

 with this there was an average daily nndlk yield of 29. 7 pounds. 

 When ration I was fed the cows dropped to 21.8 ]iounds of milk. 

 In this ration we fljid a liberal allowance of c?<rl:)ohydrates with 

 too little protein and too much inert matter. Though the cows 

 were filled with feed they were poorly nurtured. Under II there 

 was abundant nutrition, but the oil meals given were heavy in 

 character and too liberal in quantity for the best results though 

 the milk flow was increased to nearly the normal. With III v>'e 

 have a better balanced ration; the cows were over-fed, but the 

 better character of the ration secured larger returns than were 

 possible under previous feeding, the amount of milk now reaeh- 



Rept. 1891. 



