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Effects of body condition score before mating on productive performance of Lori-Bakhtiari ewe | ||
| علوم و فنون دامپروری | ||
| Article 3, Volume 5, Issue 20, November 2016, Pages 25-30 PDF (680.8 K) | ||
| DOI: 10.22092/aasrj.2016.113766 | ||
| Author | ||
| MOHSEN BAGHERI* | ||
| chaharmahal and bakhtiari agricultural and natural resources researches and education | ||
| Abstract | ||
| The aim of this study was to determine effects of ewe's body condition score (BCS) before mating on lambs birth and weaning weights. For this purpose, body condition score of 300 Lori-Bakhtiari ewes reared in rural flock were assessed one day before ram introduced. Lambs weight at birth and weaning were recorded. The results showed that, the highest relative frequency (37%) being observed for ewes with a BCS of 3.5. Lambs birth weight was not affected by BCS (P>0.05). Kilogram lambs born per ewe exposed (P<0.05) and grams lambs born per kilogram ewe exposed (P<0.01) were higher for ewes with a BCS of 4, but, the differences between ewes with a BCS of 3.5 and 4 were not statistically significant (P>0.05). Lambs weight at weaning was not affected by BCS (P>0.05). Kilogram lambs weaned per ewe exposed and grams lambs weaned per kilogram ewe exposed were higher (P<0.01) for ewes with a BCS of 4, however the differences between that and ewes with a BCS of 3 and 3.5 were not statistically significant. The lowest productive performance was observed for ewes with a BCS of 2. Therefore, the best BCS of Lori-Bakhtiari ewes before mating was proposed 3-3.5. | ||
| Keywords | ||
| ewe; Body condition score; Lamb; birth weight; weaning weight | ||
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