Studies on the effect of selenium and vitamin e on 1. attainment of puberty in female meriz goats

الملخص EN

This investigation was conducted at the Animal farm, Faculty of Agriculture, University of Duhok, where 30 weaned female Meriz kids were alloted randomly into three equal groups.

The 1st group was injected weekly with saline and considered as a control ( T1 ), the 2nd group was injected weekly with 4 mg vitamin E + 80 μg Sodium Selenite / kg body weight ( T2), and the 3rd group was injected with 2 mg Vitamin E+40 μg Sodium selenite / kg body weight ( T3) .

Detection of estrus was carried out twice daily by introducing a proven bucks, and monteering progesterone concentration.

Results revealed that body weight at puberty, and daily gain in weight of Meriz kids averaged 24.39 ± 0.46 kg and 0.116 ± 0.003 kg, respectively.

Treatment kids with Selenium and vitamin E had no significant effect on both traits.

However, kids of T2 group exhibited estrus earlier than T1 and T3 groups