Effects of antithyroid drug on the rectal temperature and metabolic parameters of ducks (Cairina moschata).
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The effect of propylthiouracil oral treatment (400 mg/day per bird for 20 days) on body and thyroid weight, rectal temperature and plasma metabolic parameters of ducks (Cairina moschata) was determined. Propylthiouracil treatment produced a reduction (P less than .01) in body weight and an increase (P less than .01) in thyroid weight. The antithyroid drug also produced a decrease in rectal temperature starting from the 15th day of treatment, but did not significantly change blood glucose. Plasma free fatty acids and cholesterol concentrations progressively increased from the 5th and 10th day, respectively, in treated animals.