Author(s): M.A. Abouheif, M.S. Salah and A.A. Alsobayel
Article publication date: 1985-03-01
Vol. 3 No. 1 (yearly), pp. 371-377.
116
Keywords
ewes, fertility, lambing
Abstract
The experiment was conducted to compare and examine the use of medroxyprogesterone (progestagen) and prostaglandin F2alpha tromethamine salt (PGF2alpha) for synchronization of lambing in black Najdi ewes. Synchronization with either progestagen or PGF2alpha did not change fertility percentage significantly over the control ewes.
Ewes, on progestagen treatment, lambed in relatively wider period than those that received PGF2alpha treatment. In the treated groups, lambing was synchronized into two noticeable peaks but control ewes lambed uniformly throughout a thirty day period.