Murat Demirel
Department of Animal Science, Faculty of Agriculture, Yuzllncu Yil University, Van, Turkey
Omer Faruk Kurbal
Department of Animal Science, Faculty of Agriculture, Yuzllncu Yil University, Van, Turkey
Turgut Aygun
Department of Animal Science, Faculty of Agriculture, Yuzllncu Yil University, Van, Turkey
Sibel Erdogan
Department of Animal Science, Faculty of Agriculture, Yuzllncu Yil University, Van, Turkey
Yunus Bakici
Department of Animal Science, Faculty of Agriculture, Yuzllncu Yil University, Van, Turkey
Ayhan Yilmaz
Department of Animal Science, Faculty of Agriculture, Yuzllncu Yil University, Van, Turkey
Hasan Ulker
Department of Animal Science, Faculty of Agriculture, Yuzllncu Yil University, Van, Turkey
ABSTRACT
A total of 78 Norduz ewes and their lambs were used in the study. Group 1 (control) was grazed only on pasture and Group 2, 3 and 4 were supplied with 200, 300, 600 g-1 head day -1 rolled barley, respectively, in addition to pasture. There were increases in live weights in Norduz ewes in response to supplementary feeding during feeding period (P<0.01). Feed supplementation during mating period did not affect reproductive traits. The effect of ewe age on the twinning rate and litter size (P<0.01) and fecundity (P<0.05) was significant. The mean lamb birth weight, weaning weight, daily live weight gain and survivability at weaning were 4.65 kg, 19.29 kg, 192 g and 96.43%, respectively. In conclusion, supplementary feeding in addition to grazing during breeding season affected live weight in Norduz ewes but not other reproductive traits. Further detailed studies should be carried out in order to determine the effects of supplementary feeding on reproductive traits in this breed.
PDF References
How to cite this article
Murat Demirel, Omer Faruk Kurbal, Turgut Aygun, Sibel Erdogan, Yunus Bakici, Ayhan Yilmaz and Hasan Ulker, 2004. Effects of Different Feeding Levels During Mating Period on the Reproductive Performance of Norduz Ewes and Growth and Survival Rate of Their Lambs. Journal of Biological Sciences, 4: 283-287.
DOI: 10.3923/jbs.2004.283.287
URL: https://scialert.net/abstract/?doi=jbs.2004.283.287
DOI: 10.3923/jbs.2004.283.287
URL: https://scialert.net/abstract/?doi=jbs.2004.283.287
REFERENCES
- Rhind, S.M. and B.D. Schanbacher, 1991. Ovarian follicle populations and ovulation rates of Finnish Landrace cross ewes in different nutritional states and associated profiles of gonadotrophins, inhibin growth hormone (GH) and insuline-like growth factor-I. Dom. Anim. Endoc., 8: 281-291.
CrossRef - Cumming, I.A., 1977. Relationships in the sheep of ovulation rate with live weight, breed, season and plane of nutrition. Aust. J. Exp. Agric. Anim. Husban., 17: 234-241.
CrossRefDirect Link - van Soest, P.J., J.B. Robertson and B.A. Lewis, 1991. Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. J. Dairy Sci., 74: 3583-3597.
CrossRefPubMedDirect Link - Akmaz, A. and H. Akcapinar, 1990. The effects of various levels of nutrition before mating and at late pregnancy on the reproductive performance of Konya Merino ewes and growth and survival rates of their lambs. Turk. J. Vet. Anim. Sci., 14: 301-319.
Direct Link - Reese, A.A., S.W. Handayani, S.P. Ginting, W. Sinulingga, G.R. Reese and W.L. Johnson, 1990. Effects of energy supplemantation on lamb production of javanese thin-tail ewes. J. Anim. Sci., 68: 1827-1840.
Direct Link - Boland, M.P., P. Lonergan and D.O. Callaghan, 2001. Effect of nutrition on endocrine parameters, ovarian physiology and oocyte and embryo development. Theriogenology, 55: 1323-1340.
Direct Link - Demirel, M., T. Aygun, T. Altin and M. Bingol, 2000. The efect of different levels of feeding in late gestation on ewe weight, lamb birth weight and lamb growth of karakas and hamdani ewes. Turk. J. Vet. Anim. Sci., 24: 243-249.
Direct Link - Esen, F. and N. Yildiz, 2000. Production characteristics of White Karaman, Chios x White Karaman (F1 ) crossbred lambs. I. Growth, survival ability and body measures. Turk. J. Vet. Anim. Sci., 24: 223-231.
Direct Link - Filya, I., A. Karabulut and V. Akgunduz, 1996. The effects of notritional levels on reproductive prformance of ewes and growth and survival rates of their lambs atmating priod and last period of gestation. Proceedings of the Animal Breeding 96th National Congress, September 18-20, 1996 Izmir, pp: 248-256.