Akkaraman Koyunlarda Doğumların Gün İçerisindeki Dağılımı

Bu çalışmada geleneksel metotlarla yetiştirilen Akkaraman koyunlarda doğal, kendiliğinden doğumların

Anahtar Kelimeler:

Koyun, Akkaraman, doğum zamanı, kuzu cinsiyeti, doğum tipi

The Distribution of Lambings in a Day of Akkaraman Ewes

In this study, the distribution natural spontaneous births within a day was investigated for Akkaramansheep reared with traditional methods. The effects of birth type and year on birth time were examined. Within aday, birth time was categorized into 4 sub-groups; namely, 22.00:04.00, 04.00:10.00, 10.00:16.00, and 16.00:22.00hours, respectively. Chi-Square statistic was used with the aim of determining the association of birth time withdam age, sex, birth type, and year at a significance level of 0.05. In the study of two years, 156 male and 156 femalelambs were born from 288 lambing. The numbers of single and twin born lambs were 264 and 24. Generally,31.2% of all the births was intensively 16.00: 22.00 hours, but 15.6% was 22.00: 04:00 hours. The effects of damage and birth year on birth time were significant (P<0.05) but the effects of sex and birth type were insignificant.

Keywords:

Sheep, Akkaraman, birth time, lamb sex, type of birth,

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Akçapınar, H., 1994. Koyun yetiştiriciliği. Medisan Yayınevi, An- kara.
Aleksiev, Y., 2007. Diurnal distrubition of the time of parturition in the Danube Fine Wool Breed of sheep. Bulg J Agric Sci, 13: 723-728.
Alexander, G., 1993. The timing of birth in grazing Merino sheep. Aust J Exp Agr, 33: 557-560.
Düzgüneş, O., Kesici, T., Gürbüz, F., 1983. İstatistik metodları I. Ank Üniv Zir Fak Yay No: 861, Ankara.
Estes, R. D. 1976., The significance of breeding synhcrony in the Wildbeest. East Afric Wildlife J, 14: 135-156.
Gonyou, H. W., Cobb, A. R., 1986. The influence of time of fee- ding on the time of parturation in ewes. Can J Anim Sci, 66: 569-574.
Holmes, R. J., 1976. Relationship of parturient behaviour to rep- roductive efficiency of Finn sheep. Anim Prod, 36: 253-257.
Hudgens, R. E., Albright, J.L., Penningion, J. A., 1986. Influence of feeding time and diet on the time of parturition in multiparous ewes. J Anim Sci, 63: 1036-1040.
Lindahl, J.L., 1964. Time of parturition in ewes. Anim Behav, 12: 231-234.
Rossdale, P.D., Short, R.V., 1967. The time of foaling of through- breed mares. J Rep Fer, 13: 341-343.
Sharafeldin, H.A., Ragop, M.T., Kandeel, A.A., 1971. Behaviour of ewes during parturition. J Agric Sci, 76: 419-422.
Tomar, S. S., 1979. Time of parturition in sheep. Ind J Anim Res, 13: 68-70.
Ünal, N., Akçapınar, H., 1994. Koyunlarda davranış. Hayv Araş Derg, 4 (2): 113-123.
Younis, A.A., Gaboury, L.A.H., 1978. On the diurnal variation in lambing and time for placenta expulsion in Awassi ewes. J Ag- ric Sci, 91: 757-760.