The results were variable with there being no response to the testosterone treatment of the weaners in year 2 which were weaned onto dry feed. In the other two years, the weaners grazed at the lower stocking rates were heavier and there appeared to be a general increase in the weight of those injected with testosterone. However, the level of response was not consistent and in year 3 there was no response while the sheep grazed green feed for four months or so following weaning.
Number of Pages
Wool production, Growth effects, Testosterone, Australian merino, Sheep
Johns, M A, Meldrum, A, Wallace, J F, Croker, K P, and Watson, F E. (1992), Growth and wool production of Merino wethers after treatment with testosterone. Department of Agriculture and Food, Western Australia, Perth. Technical Bulletin 85.
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