Pre-weaning growth performance of hair x mutton sheep crosses and post-weaning growth and physiological reaction in response to different feeding levels and high ambient temperature
نویسنده
چکیده
Crossbreeding between indigenous and exotic sheep breeds is the fastest method of increasing the performance of sheep in the tropics. The aim of this work was to assess the performance of Cameroon sheep (C) and their crossbreds (Cameroon x Mutton, F1) and (F2 from Cameroon x Milk sheep) under different housing and feeding conditions. The following traits were analysed: Pre-weaning performance during the first 90 days; 127 animals, C, F1 and F2. Post-weaning growth performance at different feeding levels; changing from 1.5 x maintenance to ad libitum feed intake and vice versa; duration 6 weeks; 30 animals; C, F1 and F2. Housing of lambs under temporal heat stress (8 hours daily at 31°C and 50% relative humidity); duration 12 weeks; 10 animals, C and F2 Carcass traits; 40 lambs, C, F1 and F2.
منابع مشابه
Crossbreeding of iranian fat-tailed sheep III. the relationships of pre-and post-weaning growth performance of lambs
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