56 Report of Department of Animal Husbandry of the 



because of lower mortality, although the average growth of sur- 

 viving chicks was better in lot X. 



On the average for the whole period the amount of dry matter 

 in the food, exclusive of added mineral matter, for each pound 

 gain in weight was 5.0 pounds for lot VII, 4.5 pounds for lot 

 VIII, 4.0 pounds for lot IX and 4.6 pounds for lot X. The food 

 cost, including added mineral matter, per pound gain was 6.2 

 cents for lot VII, 5.4 cents for lot VIII, 4.9 cents for lot IX and 

 7.4 cents for lot X, 



GROUP E. 



The lots XI, XII and XIII of this group had food rich in 

 mineral matter, about 85 per ct. of which came from animal meal 

 containing nuich bone. About 44 per ct. of the protein in the ration 

 came from animal food. The ash constituents represented about 

 1 1.8 per ct. of the total dry matter in the food. With the added 

 oyster shell for lot XI they represented nearly 21 per ct. 



The best results came from lot XII having sand mixed in their 

 food. The advantage over those having none (lot XIII) seemed 

 greatest during the first four weeks. Although the average 

 growth made was no greater, less food was required for it, the 

 mortality was lower and the net results were better. 



The dry matter in the food consumed, exclusive of oyster shell, 

 for each pound gain in weight was 3.8 pounds for lot XI, 3.4 

 pounds for lot XII and 2i-7 pounds for lot XIII. The food cost 

 per pound gained was 5.7 cents for lot XI, 4.1 cents for lot XII and 

 4.9 cents for lot XIII. 



GROUP f. 

 The supply of mineral matter in the food for lots XIV and XV 

 was somewhat greater than is usual in an entire grain ration. 

 The ash constituted about 3.9 per ct. of the total dry matter. 

 With the added oyster shell for the one lot the total mineral mat- 

 ter was raised to 12.1 per ct., and with the Florida rock for the other 

 to 1 1.8 per ct. of the total dry matter. 



