1320 PIGS 



cerning the comparative value of wheat and maize as a food in the fattening 

 of pigs, and the best method of feeding wheat to them. 



In 1914, the continuous rains at the end of the sunmier and beginning 

 of the autumn damaged a large part of the wheat harvested in the vState 

 of Missouii, and reduced its value to such an extent as to make its use as a 

 pig food economically desirable. 



The experiments included numerous and variously combined feeding 

 tests, accompanied by the slaughter of standard animals belonging to each 

 of the group experiments. The purpose of these experiments was : 1) to 

 compare the food value of maize and wheat ; 2) to obtain particulars as to 

 the food value of wheat fed alone or together with other foods rich in carbo- 

 hydrates ; 3) to obtain data as to the food value of wheat along v/ith foods 

 rich in protein and mineral substances. 



The results are contained in 30 tables and are summed up as follows : 

 In this experiments pigs fed on wheat increased in weight more rapidly 

 than those fed. with maize. 



During the entire feeding period of 120 days the wheat-fed pigs showed 

 an average daily gain of 1.25 lbs per head as against i.oo lbs for those fed 

 on maize. 



To produce 100 lbs increase of live weight there was required 483 lbs 

 of wheat as against 582 lbs of maize in the Hke conditions. 



A mixture of wheat and maize in equal parts appeared to be more suit- 

 able in point of rapidity and economy of increase of Hve weight than maize 

 alone, but less than wheat alone. 



A ration of maize 10 parts and butcher's offal one part produced more 

 rapid increase of w^eight than maize alone. 



During the 120 days of the feeding period, the ration consisting of 10 

 parts of maize + i part of butcher's offal produced an increase of live weight 

 of 1.27 lbs per head per day, as against i lb with the maize ration alone. 



To produce too lbs increase of live weight a lesser quantity of grain was 

 needed when the maize was supplemented by butcher's offal. In this 

 experiment, 498 lbs of a ration consisting of 10 parts of maize and i part of 

 butcher's offal produced the same increase of live weight as 582 lbs of maize 

 alone under like conditions. , 



The addition of butcher's offal to the wheat ration showed a clear ad- 

 vantage during the first part of the feed test. 



During the first 78 days of the experiment, the ration 10 parts of wheat 

 -j- one of butcher's off al gave an average increase of live weight of 1.55 lbs per 

 day, while the ration of wheat alone produced 1.25 lbs. During that pe- 

 riod, in order to produce 100 lbs increase of live weight, there were required 

 424 lbs of the ration wheat -|-butcher's offal as against 455 lbs of wheat ra- 

 tion alone. 



During the last 42 days of the experiment, the pigs fed on wheat and 

 butcher's offal also showed a more rapid increase of live weight, namely, 

 1.53 lbs per head per day as against 1.26 lbs with wheat alone. This sur- 

 plus in the increase of live weight was not very, or rather not at all, economic. 

 During this period, to produce 100 lbs increase of live weight there were re- 



