Subscribe Now Subscribe Today
Research Article

Effects of Different Feeding Levels During Mating Period on the Reproductive Performance of Norduz Ewes and Growth and Survival Rate of Their Lambs

Murat Demirel , Omer Faruk Kurbal , Turgut Aygun , Sibel Erdogan , Yunus Bakici , Ayhan Yilmaz and Hasan Ulker
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

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.

Related Articles in ASCI
Search in Google Scholar
View Citation
Report Citation

  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



1:  Bas, S., M.K. Ozsoy and Y. Vanli, 1986. The effects of supplementary feeding at different periods prior to ram introduction on reproduction in ewes, growth and survivability in lambs. Doa Bil. Derg., 10: 221-234.

2:  El-Hag, F.M., B. Fadlalla and M.A. Elmadih, 1988. Effect of strategic supplementary feeding on ewe productivity under range conditions in North Kordofan, Sudan. Small Rumin. Res., 30: 67-71.

3:  Baopinar, H., M. Oan, E.S. Batmaz and M. Petek, 1996. An investiation on the main production performance of Karacabey Merine sheep under semi-intensive conditions. I. Fertility traits, milk production and body weight at mating. Hayvancilik Araotirma Derg., 6: 40-44.

4:  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  |  

5:  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.
CrossRef  |  Direct Link  |  

6:  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.
CrossRef  |  PubMed  |  Direct Link  |  

7:  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  |  

8:  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  |  

9:  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  |  

10:  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  |  

11:  Gokdal, O., H. Ulker, M. Oto, C. Temur and C. Buda, 2000. Some yield traits and body measurements of Karakao ewes in rural farm conditions. Yuzuncu Yil Univ. Zir. Fak. Tar. Bil. Derg., 11: 103-111.

12:  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  |  

13:  Gordon, I., 1997. Induction of Multiple Births in Sheep. CABI, Wallingford, UK., pp: 205-240

14:  Ioik, N., 1998. An investigation on the effects of rations with various energy content given prior to mating on reproductive performance of Akkaraman ewes. A.U. Zir. Fak., 1980, Yay. No. 774.

15:  Bingol, M., 1998. Reproductive milk growth and developmental traits in Norduz sheep. Ph.D. Thesis, Yuzuncu Yil University, Fen Bilimleri Enst., Van, Turkey.

16:  Doney, J.M. and R.G. Gunn, 1973. Progress in studies on the reproductive performance of hill sheep. Hill Farm. Res. Org., 6: 69-73.

17:  Akyildiz, A.R., 1974. Feed laboratory manual. A.U. Zir. Fak. Yay., 1974. No. 895, 213.

18:  SAS., 1998. PC SAS Users Guide Statistics. SAS Inst., Cary, North Carolina

19:  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

20:  Aygun, T. and M. Bingol, 1999. Comparison of he birth weights of karakao and norduz lambs. Proceedings of the International Animal Breeding Congrerious, September 21-24, 1999, Izmir, Turkey, pp: 738-742

©  2021 Science Alert. All Rights Reserved