RELATIONSHIP OF THYROID ACTIVITY TO DISTRIBUTION OF FAT IN RABBIT CARCASSES

The effects of exogenous administration of T4 and a combination of T4 and Synovex (12.5 mg progesterone and 1.25 mg estradiol) on the distribution of fat in rabbit carcasses have been studied. The results demonstrate that increasing thyroid activity will cause production of leaner rabbits that contain adequate amounts of intramuscular fat. Further, implantation of estrogenic hormones tend to stimulate growth and counteract the depressed weight gains in treated rabbits. A possible T4-Synovex interaction is indicated. Rabbits receiving both hormones had the lowest amount of waste fat and the highest amount of intramuscular fat of all treatment groups.

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