154 HATCH EXPERIMENT STATION. [Jan. 



results were obtained : for the first period, February 3 to 

 May 17, the wheat ration produced eggs at the average rate 

 of .4333 per hen day ; the corn ration at the rate of .3837 

 per hen day ; in other words, 100 hens would have laid per 

 day on the wheat ration 431/3 eggs, and on the corn ration 

 practically 381^ eggs per day. For the second period, May 

 17 to September 30, the wheat ration produced an average 

 of .1911 eggs per hen day, the corn ration .2067 eggs per 

 hen day ; or, in other words, 100 hens would have laid on 

 the wheat ration about lOl/^o eggs and on the corn ration 

 20% eggs per day. The average food cost per egg pro- 

 duced was for the wheat ration .611 cents, for the corn 

 ration .505 cents for the first period; while for the second 

 period the cost per egg on the wheat ration was 1.657 cents, 

 and on the corn ration 1.315 cents. The otoss cost of the 

 food on the wheat ration varied from about .24 to .30 cents 

 per day for each fowl, while on the corn ration the cost 

 varied from about .17l/'2 to about .26 cents per day. The 

 yield of eggs during the second period was very small. The 

 small average product is to be attributed largely to the fact 

 that the period was continued beyond the date when the hens 

 began to molt. The 20 hens on the wheat ration laid only 

 82 eggs during the last two months of the experiment, while 

 those on the corn ration laid only 158 eggs during the same 

 time. 



2. In the experiment comparing wheat with corn, with 

 milk albumin as the source of animal food and with corn oil 

 added as a source of fat, the egg product was as follows : for 

 the first period, February 3 to May 17, the wheat ration pro- 

 duced eggs at the average rate of .463 eggs per hen day, the 

 corn ration .4324 eggs per hen day ; or, in other words, 100 

 hens would have laid on the wheat ration practically 46% 

 eggs per day, and on the corn ration 431^4 eggs per day. 

 For the second period the wheat ration gave an average of 

 .3109 eggs per hen day, the corn ration .3017 eggs per hen 

 day ; or, in other words, respectively for the wheat ration 

 an average of 31 eggs per 100 hens daily, and for the corn 

 an average of 30% eggs. The food cost of the eggs in this 

 experiment was as follows : for the wheat ration during the 



