station Tests with Feeds for Dairy Cows. 435 



Rememberiiig that tMs trial was conducted on a New York dairy 

 farm, we are taught that even when the midsummer and fall 

 shortage in pasture is overcome by the use of fodder corn, pump- 

 kins, etc., the result of feeding grain is to secure about one pound 

 of milk extra for each pound of grain fed. (555) 



667. Residual effects of grain feeding. — The following year the 

 herd was turned to pasture as usual, no grain being supplied to 

 either lot. Beginning April 1 a record was kept of milk yields. 

 Six cows in each lot of the previous year still remained upon the 

 farm. Their yield of milk for six months was as follows: 



Lot I. Lot II. 



Fed grain Fed no grain 

 previous year, previous year. 



Average yield per cow, six months, pounds 3,440 2,960 



In favor of Lot I, pounds 480 



Per cent, in favor of Lot I 16 



It will be seen that the cows in Lot I averaged 480 pounds of 

 milk, or 16 per cent, more than those in Lot 11. Commenting 

 on this, Eoberts writes: "It seems reasonable to assume that this 

 increased production was due to the grain fed the preceding year, 

 especially in the case of the younger animals. Indeed it was 

 plainly evident that the grain-fed two-year-olds and three-year- 

 olds developed into better animals than their stable mates having 

 no grain." 



At the Kansas Station, i Shelton, when feeding from 10.8 to 

 12.5 pounds of corn meal, bran or oats daily to cows on ''ample 

 pasturage, consisting for the most part of orchard grass and red 

 clover," found an incrciise in milk flow, due to the grain fed, 

 varying from 16 to 31 per cent. ; yet this increase was not suffi- 

 cient to directly pay for the extra feed supplied. 



At the North Dakota Station, 2 Kaufman fed bran and shorts 

 to cows grazing on a pasture of mixed tame grasses and clover, 

 other cows in the same pasture receiving no grain. The results 

 show only about 6 per cent, increase in the yield of fat because 

 of the grain fed. The cows getting grain increased in weight 

 more than the others, but the combined results were too small 

 to pay for the grain fed. 



1 Eept. 1888. « Bui. 16. 



