Figure 1
From: Immobilization of muskoxen (Ovibos moschatus) with etorphine and xylazine
Effective i.m. doses of etorphine (M99; ml) of a stock solution of 9.8 mg/ml for immobilization of muskoxen in relation to body mass. Filled squares: Calves, both sexes, 1-2 years; Open circles: Animals of both sexes aged 2-3 years; Open diamonds: Mature cows in summer; Open squares: Mature cows in winter; Filled circles: Mature bulls in summer. The doses are variable, particularly in young animals, since weight was only obtained after the animal had been immobilized, and the variation reflects the difficulty of judging the body mass of muskoxen. The line indicates the recommended dose of 0.05 mg/kg M99. Numbers above symbols denote supplementary doses of Rompun® (20 mg/ml) in ml.