STUDIES OF THE ENERGY REQUIREMENTS OF CHICKENS .1. THE EFFECT OF DIETARY ENERGY LEVEL ON GROWTH AND FEED COMSUMPTION
STUDIES OF THE ENERGY REQUIREMENTS OF CHICKENS .1. THE EFFECT OF DIETARY ENERGY LEVEL ON GROWTH AND FEED COMSUMPTION
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DOI：
10.3382/ps.0330112
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发表时间：
1954-01-01
期刊：
影响因子：
4.4
通讯作者：
DANSKY, LM
中科院分区：
文献类型：
--
作者：
HILL, FW;DANSKY, LM
The purpose of the expts. reported was to determine the minimum level of productive (net) energy per unit wt. of diet required for max. early growth rate of chicks fed ad libitum. Productive energy levels ranging from 975 to 505 Calories per pound of diet were produced by substituting pulverized oat hulls for grain components at graded levels up to 40% of the diet. Max. growth rate was consistently obtained with 623 Calories or more per pound of diet; in several expts., max. growth rate was also produced by a diet containing 505 Calories per pound. Feed consumption increased as dietary energy concn. decreased. However, total energy intake per chick was decreased progressively as dietary energy concn. decreased. Differences in total energy consumption were reflected in carcass fat content; chicks fed the ration highest in energy concn. had the highest fat content, and fat content was progressively lower as the dietary energy level and total energy intake declined.
