FACTOR OF AGE IN THE RATE OF ABSORPTION OF, AND IN MAMMARY STIMULATION BY, TESTOSTERONE MONOPROPIONATE PELLETS IN RATS

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Abstract
Uniformly-made pellets of testosterone monopropionate, implanted subcut. in 33 [male] and [female] rats and recovered after 12 days, showed the following avg. absorption rates: implantation on the 16th day of life, 33.0%; on the 30th day, 30.8%; on the 47th or 54th day, 25.9%; at the end of the 12th mo., 26.3%. The mammary glands of none of the prepubertal, some of the pubertal, and all of the postpubertal c?c? and 5? showed grossly visible stimulation following treatment.