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Abstract

3500 records of reproduction in a 7-yr period of Awassi sheep managed semi-intensively at the Kraim Research Centre were analysed. Pregnancy duration averaged 151.7±2.17 days, and was not significantly affected by litter size, although it was slightly longer in ewes carrying single lambs than in...

Author(s)
Kassem, R.; Owen, J. B.; Fadel, I.; Juha, H.; Whitaker, C. J.
Citation
Research and Development in Agriculture, 1989, 6, 3, pp 161-168
Abstract

The effects of dam postpartum body weight, gestation period, number of teats and sex of kit on preweaning growth were investigated in 243 kits from 44 dams. Gestation period averaged 47 days (38-57), and had no significant effect on litter size or dam body weight. Litter size significantly affected ...

Author(s)
Korhonen, H.; Niemelä, P.; Ham, M.; Mononen, J.; Haapanen, K.
Citation
Finsk Pälstidskrift, 1991, 25, 1, pp 12-14
Abstract

For 484 Polwarth ewes, lambing in 1979-92, gestation length averaged 148.5 days. Of lambs born, 258 were male and 226 female, and 102 lambings resulted in the birth of twins. The birth weight of 492 lambs averaged 2.74 kg and was significantly affected by sex of lamb, litter size, parity and year...

Author(s)
Lanzoni, N. A.; Queiroz, S. A.; Albuquerque, L. G.; Garcia Sobrinho, A.; Andrade, A. F.
Citation
Ars Veterinaria, 1996, 12, 2, pp 178-187