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BULLETIN No. 111. 

 WEIGHT, GAIN, AND COST OF FEED 



[August, 



FEED EATEN DAILY PER Cow 



Notwithstanding the fact that the cows were fed much more 

 after calving than before, they fell off very materially in weight. 

 This loss of weight was not as marked with the cows in lot i, where 

 silage was fed as it was in lot 2 where shock-corn was fed. Obvi- 

 ously the data are not available to determine whether this difference 

 was due largely to the difference in the rations fed or whether it 

 was due to the varying quantities of milk produced by the individ- 

 ual cows involved. If the amount left by the calves for a time after 

 calving be taken as an indication of milking qualities, it would seem 

 that in general the shock corn-fed cows were naturally heavier milk- 

 ers than the silage-fed cows. 



Other things being equal, it would be expected that the calves 

 from cows giving the largest flow of milk would make the most 

 rapid gains. If so, and if the shock corn-fed cows gave more milk 

 than the silage-fed ones, why did the calf or cow number 478 (sil- 

 age-fed) gain most and the cow suffer the least loss in live weight? 

 In order to determine this matter accurately it would require that 

 the cows be milked and a careful record kept of the yield. Enough 

 is already known to satisfy the writer that if the cows in lot i (sil- 



