In order to overcome the refractory period of the ovary to c1oprostenol (ICI 80996) treatment (prior to day 4 and subsequent to day 14 of the oestrous cycle), ewes were treated with intravaginal progestagen sponges for eight days and injected…
The reproductive efficiencies of ewes treated with the intravaginal progestagen sponge (MAP), an intravaginal progestagen sponge (MAP) followed by an injection of cloprostenol (125 μg), a double injection of 250 μg cloprostenol at a 9-day interval and a control group…
The effect of different periods (12, 14, 16 or 18 days) of intravaginal progestagen treatment (MAP) and PMSG (300 IU) on synchronization of oestrus in Boer goat does was investigated. No significant difference in oestrous response, follicular activity, ovulation rate,…
The use of the CIDR (controlled internal drug release) dispenser as a progestagen-synchronizing agent was evaluated in 37 Karakul ewes during the breeding season, using the intravaginal progestagen sponge as a control (30 ewes). Although there was no significant differences…
One hundred and thirty Merino ewes were used to test the efficiency of different doses of medroxyprogesterone acetate (MAP) progestagen to synchronize oestrus outside the breeding season. Three treatments, consisting of intravaginal progestagen doses (60 mg, 40 mg, and halved…
