A study of the variability of the endogenous energy output by adult roosters and a determination of the available energy of nine different feedstuffs.
D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D002645:Chickens / Q000378:metabolism*; D004734:Energy Metabolism; D008297:Male; D051381:Rats / Q000378:metabolism; D013552:Swine / Q000378:metabolism