THE COMPOUNDING. OF RATIONS 361 



fully nine-tenths of a maintenance ration of the larger farm 

 animals may consist of carbohydrate, a somewhat less pro- 

 portion prevails in the maintenance ration of chickens. 



This may be partially due to the fact that while main- 

 tenance with the larger animals implies that they are at rest, 

 with fowls it is practically impossible to keep them at rest, 

 and the proportional wear and tear upon the tissues is greater. 



The fact that poultry " requires a much higher proportion 

 of nutrients per unit body weight, presupposes their adapt- 

 ability to concentrated feedstuffs, like the grains."' 



Table XXXII. — Digestible: Nutrients Required pek Day for Each 

 • 100 Pounds Lite Weight for Maintenance. 



Total dry Carbohy- Nutritive 



matter. Ash. Protein, drates. Fat. ratio. 



Capons of 9 to 12 pounds 



weight . . 2.30 



Hens of 5 to 7 pounds 



weight . . . 2.70 



Hens of 3 to 5 pounds 



-weight . . . 3.90 



From feeding trials not covering any moulting period and 

 during a time when egg production was suspended, W. P. 

 Wheeler^ deduced the standards given in Table XXXII 

 and the tables following. 



This data was taken from a total of 52 capons averaging 

 by different lots from 9 to 12 pounds in weight and fed for 

 158 days, and from 69 hens ranging from 3 to 7 pounds 

 and fed for 150 days. 



"A ration which corresponds to the standard given for 

 maintenance for hens of the larger size could be composed of 

 1 pound of cracked corn, 1 pound of corn meal, | pound each 

 of ground oats, wheat middlings and clover hay, J pound 

 fresh bone, and 10 ounces of beef scraps."' 

 ' Growing Standard for Chicks. — ^As is to be expected, the 

 proportions of protein and ash in a growing ration for chicks 

 is even greater than that for a hen in full laying, because 



' Brown, Bureau of Animal Industry, Bulletin No. 56. ,,, 



' W. P. Wheeler in Jordan's Feeding of Animals. ,,[ 



3 Ibid. 



