Volume 20 No 12 (2022)
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A study of the reproductive performance of different breeds of sheep under the system of repeat births
Ahmed Abdel Karim Mohamed Amin Al-Salihi and Hafez Musa Ali Al-Taie
The study was conducted in one of the fields of Barakat Abi Al-Fadl Al-Abbas station, affiliated to the AlKafeel Company for Private Investments of the Abbasid shrine in the holy province of Karbala for the period from April 1, 2021 to June 1, 2022. To study the possibility of repeat births for three groups of sheep and the effect of some genetic factors represented by the genetic group and non-genetic factors represented by the age of the ewe, the weight of the ewe at mating and the season of birth, on the fertility rate, fertile birth rate, fertility rate, barrenness ewes, abortion rate, birth rate and twins rate.The study included 60 ewes of three genetic groups, 20 local Awassi ewes, an Iranian Karakul, and an Iranian Karakul cross a local Awassi. The ages of the ewes ranged from 2-5 years, and their weights were less than 45 and 45-50- and more than 50 kg.
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