Abstract
INTRODUCTIONANDROGENS, more specifically, testosterone and some of its derivatives, have been shown to stimulate protein anabolism in man, rats, cattle, rabbits, and dogs (Bergetrand, 1950; Burris et al., 1954; Kenyon, 1938; Kim et al., 1952; Kochakian et al., 1935, 1950; Light and Tornaben, 1953; Perlman and Cassidy, 1953; Rupp and Paschkis, 1954; Shay et al., 1941). Their use as anabolic agents in chickens has not been particularly productive.Evidence to date in poultry suggests that androgens have neither improved feed efficiency nor growth rate. Depending upon the dose level, they have either reduced growth in the cockerel or have had little, if any, effect (Adams and Herrick, 1955; Anderson, 1953; Libby et al., 1953; Moreng and Bryant, 1956). In the pullet, the reports show no effect on gain (Anderson, 1953). In surgical capons, rate of gain has been stimulated by androgens (Libby et al., 1953).Desaulles (Desaulles et al.,…
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