ILLINOIS DAIRYMEN'S ASSOCIATION. 109 



Mr. Lea: — Another thing should be taken into considera- 

 tion, in this year's work I believe they have eight or ten heifers 

 with their first calves. 



Mr. Glover: — That must be taken into consideration, but 

 the years that I tested them the heifers were about the same in 

 each case. Perhaps the average of the herd is a little older in 

 the third year. 



Member: — What is the best way of sampling the milk? 



Air. Glover: — In doing this work we do it every seventh 

 week for fourteen consecutive milkings. Mix the milk thor- 

 oughly, take out a sample and put in a jug in which has been 

 placed a corrosive sublimate tablet. That tablet will keep the 

 milk sweet a month. Take that and take daily records and mul- 

 tiply by her average test and that will give the amount of butter- 

 fat that she produced each week, and from those results you can 

 estimate what the cow has done for three weeks back and three 

 weeks following, then go on in the regular work for six weeks 

 and then sample again for fourteen consecutive milkings, test 

 and multiply by six. You will probably have your record within 

 5 per cent. 



Air. Lea: — Two cows standing side by side, eating the same 

 amount of feed, when the feed one cow ate did not produce the 

 butter the feed given the other cow did : where did the feed 

 go to ? 



Member : — Sometimes on their backs. 



Air. Lea: — In this case there was no gain. 



Air. Gurler : — It may have been a nervous individual, or it 

 might have gone out through excretion. There were no diges- 

 tive samples made of the two cows so we do not know where it 

 went to. 



Mr. Hunt : — The gentleman said one of the cows gave so 

 much more than the other ; now do you know what became of the 

 feed the cow ate and did not digest and put into milk and butter? 

 Those cows were supposed to put it into milk ; one cow gave 

 so much butter and the other did not give the butter. Xow. as 



