Effect of body condition score at mating on the reproductive performance of Kivircik sheep under an extensive production system |
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| Authors: | Murat Yilmaz Tufan Altin Orhan Karaca Ibrahim Cemal Husnu Erbay Bardakcioglu Onur Yilmaz Turgay Taskin |
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| Institution: | (1) Department of Animal Sciences, Faculty of Agriculture, Adnan Menderes University, Aydin, Turkey;(2) Department of Animal Sciences, Faculty of Veterinary Medicine, Adnan Menderes University, Aydin, Turkey;(3) Department of Animal Sciences, Faculty of Agriculture, Ege University, Izmir, Turkey |
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| Abstract: | The aim of this study was to determine the effects of the body condition score (BCS) of ewes before and during the mating
season on their reproductive performance under an extensive production system. In this study, 240 Kivircik sheep from the
flocks of two breeders were used for over a 2-year period. The flocks were fed under extensive conditions on natural pastures
throughout the year. The ewes were synchronized in two different periods, one of which was 45 days before the other. Before
the introduction of rams to the ewes, the ewes were weighed after measuring their BCS. Detailed records were kept for every
flock in each year. We found significant effects of BCS on pregnancy rate, lambing rate (P < 0.05) and fecundity (P < 0.05). The BCS for the highest pregnancy, lambing rate, and fecundity was determined between 2.01 and 3.00, while the lowest
rates for these traits were ≤1.50. The highest rates of the pregnancy rate, lambing rate, and fecundity and gestation productivity
were 75.9%, 70.9%, 1.11 and 3.34 kg, respectively. |
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