Changes

 

Oestrus synchronization protocols used in the mare are efficacious in the jenny. The interval to oestrus and ovulation were 9.0±0.9 and 14.5±1.7 days respectively following progestrone/estradiol treatment, and 4.5±0.9 and 10.4±1.8 days respectively, for double prostaglandin (PG)F2a 15 days apart (Blanchard ''et al'', 1999). The percentage of jennies ovulating between 6 and 10 days is 62.5% following Altrenogest/PG F2α (8 days) and 76.3% following double PG F2α system (Vendramini ''et al'', 1997). Devices of vaginal delivery of progesterone such as CIDR have been used successfully.

Oestrus synchronization protocols used in the mare are efficacious in the jenny. The interval to oestrus and ovulation were 9.0±0.9 and 14.5±1.7 days respectively following progestrone/estradiol treatment, and 4.5±0.9 and 10.4±1.8 days respectively, for double prostaglandin (PG)F2a 15 days apart (Blanchard ''et al'', 1999). The percentage of jennies ovulating between 6 and 10 days is 62.5% following Altrenogest/PG F2α (8 days) and 76.3% following double PG F2α system (Vendramini ''et al'', 1997). Devices of vaginal delivery of progesterone such as CIDR have been used successfully.