REPRODUCTIVE PERFORMANCE OF AKKARAMAN AND AWASSI SHEEP FLOCKS IN THE STATE FARM OF TIGEM GÖZLÜ*
Abstract
In this study, 3581 Akkaraman and Awassi ewes were used in order to determine the effects of age, year and breed on the conception rate, prolificacy, viability and productivity. The least-squares means for these parameters of all flock were found as follows; 91.65±0.80 %, 127.74±1.26 %, 95.56±0.48 % and 110±1.57 %, respectively. In addition, the effects of sex of lamb and birth type on viability were also studied.
Except for conception rate, effects of the age on these parameters were found to be statistically significant (p<0.01). The maximum productivity was obtained with 5-years old ewes. Effect of breed was significant only on the prolificacy (p<0.05). With regard to prolificacy, Awassi ewes were superior to Akkaraman (129.27 % vs. 126.21 %). The year factor had a significant effect on all parameters (p<0.01). Sex effect on the viability was not significant, but birth type effected viability significantly; single lambs being superior to twin ones.
Keywords
References
- Anonymous, 2012. Turkey Statistical Institute. http://www.tuik.gov.tr. Access date: 2013.
- Alfranca,S.I., 1983. Lamb Mortality: Effect of Genotype, Sex, Type of Birth and Age. Anales Fac. Veterinaria (1983-84), No: 18-19, 469-475.
- Baş, S., Özsoy, M.K., Aksoy, A., Vanlı, Y., 1989. Koç Katım Öncesi Farklı Sürülerde Yemlemenin Merinos ve Morkaraman Irkları ile Bunların Melezlerinde Döl Verimine Etkileri. Doğa Tu.Vet. Hay. Derg., 13 (3):246-255.
- Çelikkale, M. S., 1974. İleri Merinos Meşlezlerinin Malya Devlet Üretme Çiftliği Koşullarındaki Özellikleri Üzerinde Araştırmalar. Ankara Üniv. Zir. Fak. Yay. Nu:544, Ankara.
- Eliçin, A., 1985. Alman Yerli Merinosları ile Siyah Başlı Etçi Koyunlarında Döl Verimi ve Bunu Etkileyen Bazı Faktörler Üzerinde Araştırmalar. Ankara Üniv. Zir. Fak. Yay. Nu:932, Ankara.
- El-Karim, A. I. A., Owen, J. B., 1987. Reproductive Performance of Two Types of Sudan Desert Sheep. Res. Develop. Agric., 4 (3): 183-187.
- Gabina, D., 1989. Improvement of the Reproductive Performance of Rasa Aragonesa Flocks in Frequent Lambing Systems. 1. Effects of Management System, Age of Ewe and Season. Livestock Prod. Sci., (22): 69-85.
- Gates, P. J., 1990. Nongenetic Variation in Litter Size in Swedish Sheep. Proceedings of The 4th World Congress on Genetics Applied to Livestock Production, Edinburg, 23-27 July 1990, 358-361.
Details
Primary Language
English
Subjects
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Journal Section
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Publication Date
December 13, 2016
Submission Date
February 29, 2016
Acceptance Date
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Published in Issue
Year 2016 Volume: 30 Number: 1