1498 POUI/rRY 



number of lbs. of dty matter eaten per lb. of live weight averages the same 

 for both strong and weak birds (Table III), bvit whereas the strong fowls 

 required only 7.68 lbs. of food for every dozen eggs laid, the weaker flocks 

 required 8.46 lbs. After the first period of the experiment, egg production 

 was consistently heavier in the strong flocks, the difference amounting to 

 17.75 eggs per hen per annum and being stifficient to justify the selection of 

 stronger pullets for egg production. 



1 107 - Rations for Growing and Fattening Roasters and Capons. — buss, w. j., Ohio 



Agricultural Experiment Station. Bulletin No. 284, pp. 155-172. Wooster, Ohio, 1916. 



Experiment i. — The object of this experiment was to compare the 

 relative efficiency and economy of the different rations for the production 

 of roasters and capons, and to determine the amount of feed required to 

 produce one pound of live weight increase. The chickens used were 139 

 pure and 56 cross-bred Barred Plymouth Rocks, the crossbreds being the 

 offspring of lyight Brahma and Leghorn crosses. Of these 195 birds 94 

 were cockerels, all except 8 of which were caponised when 4 months old. At 

 the start the chicks were only two months old and they were kept 

 under experiment for 32 weeks. 



The five rations in question are given below. 



Ration Grain Mash 



II 



III 



IV 



Ration fed for 12 weeks bj- which time the chicks 

 were doing so badly that they had to be put on 

 Ration I. 



In addition all birds had access to grit, charcoal and an abundant 

 supply of water. The mash was kept in hoppers to which the fowls had 

 access at all times. 



Experiment 2. -- The feeding trials were repeated with 125 purebred 

 Plymotith Rock capons, using exactly the same rations as before, except 

 in the case of the fifth group where the birds were fed on ration I, but were 

 confined to small pens instead of being allowed to range. Four to four and 

 a half months old birds were chosen and the experiment lasted 19 weeks. 



