Eleven ewes with pregnancy toxaemia were monitored clinically and biochemically after daily treatment with trenbolone acetate (30 mg) and propylene glycol (twice daily 100 ml), for at least one week. The clinical signs of pregnancy toxaemia at first examination were less severe than those described in ewes in other countries. After the first treatment, the appetite improved in nine ewes, blood glucose levels increased in 10 ewes and blood ketone body concentrations decreased in nine animals. A statistically significant decrease in mean ketone body levels was found between the day of first examination and the second day thereafter. Four animals recovered before lambing (group 1). One animal lambed one day after the first treatment and recovered. In the remaining ewes clinical and biochemical improvement did not last long. Three of these animals did not recover until after lambing (group 2) and three animals died (group 3). In three animals of group 2 and two animals of group 3 an increase of serum activities of lactate dehydrogenase, sorbitol dehydrogenase, gamma glutamyl transferase and alkaline phosphatase was found. In two necropsied animals of group 3 a severe fatty degeneration of the liver was found. Treatment of pregnancy toxaemia with trenbolone acetate and propylene glycol appeared to have some positive effect in mild cases. In more advanced cases the time of parturition is the crucial factor leading to recovery.
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