Ageicultueal Division. 425 



Lot n received no gram. 



Lot I gave 22,628..5 pounds of milk. 



Lot II gave 17,697.75 pounds of milk. 



Or 4,930.75 pounds of milk more for the grain-fed lot, a gain of 

 about three and one-half pounds i)er cow per day. The 

 cows of this herd were quite thin in flesh, but made a good '^ain 

 in live weight during the expeiiment. The grain-fed lot gained lOfJ 

 pounds per cow, and the lot receiving no grain gained 113 pounds 

 or a gain of fifty- three pounds per cow in favor of the grain-fed lot. 

 Since the gi'am-fed lot had given about; 27 per cent more milk and 

 had gained fifty-thi'ee pounds in live weight per cow more than the 

 lot receiving no gi*ain, the question then arose whether this 

 inci'eased milk-flow and the gain in live weight of lot I over lot II 

 would have any influence on the flow of milk the following year. 

 Accordingly the ^\eight of milk produced by each cow that still 

 remained in the herd was recorded for six months, beginning April 

 1, 1892. 



The following table vshows the weight of milk per cow, per 

 month, for each lot, and the difference in favor of the grain-fed 

 lot of the cows still remaining, or six cows in each lot. 



Lotl. 



April 473.8 



May 619.7 



June 750.8 



July 683.5 



August 535.7 



September 376.4 



A gain of 16.2 per cent in yield of milk. 



Fi'om this table it may be seen that for sis months, beginning 

 with April of the season following that which the grain was fed, 

 the lot which received the gi'ain gave 480.2 pounds of milk per cow 



64 



