Energy Metabolism of Broiler Breeder Hens.1. The Partition of Dietary Energy Intake
作者： R.S. SPRATT , H.S. BAYLEY , B.W. McBRIDE , S. LEESON
DOI: 10.3382/PS.0691339
关键词: Normal growth 、 Animal science 、 Energy requirement 、 Chemistry 、 Calorimetry 、 Energy balance 、 Energy metabolism 、 Broiler breeder
摘要: The partitioning of AME intake (MEI) and recovered energy (RE; defined as MEI minus heat production) was investigated on Hubbard broiler-breeder hens (BB) by using indirect calorimetry balance. regression RE linear (R2 = .96; P less than .01) with a slope .817 +/- .024 (SE) y-intercept -238.3 10.7 (SE). maintenance requirement 292 kilojoule (kJ) per kg day (367 kJ kg.75 day). body RE, egg energy, .799 .045 -344.9 19.7 Therefore, an 432 required BB to maintain equilibrium when they were laying at approximately 85% production. At day, used for cost depositing 1 body, egg, protein, or fat (mean SE) 1.21 .06, 91 .32, 1.96 .71, 1.05 .15 kJ, respectively. results indicate that individually caged between 28 36 wk age in thermal-neutral environment (21 C) require 1.6 megajoule (MJ) bird normal growth (3 g/per day) production (85%).
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