Estrous synchronization in sheep with reused progesterone devices and eCG

Effect of Different Progesterone Protocol and Low Doses of Equine Chorionic Gonadotropin (eCG) on Oestrus Synchronization in Arabian Ewes

This experiment was conducted to determine the reproductive performance of Arabian ewes treated with short and long-term progesterone devices in addition to low doses of equine chorionic gonadotropin (eCG) during the anoestrus season. A total of 36 ewes were divided into three groups: in group I vaginal sponges (60 mg medroxy progesterone acetate; (MAP)) were applied and removed after 6 days; i...

Estrous Cycle Synchronization In

E STRUS and ovulation in gilts have been successfully inhibited by daily injections of progesterone (Ulberg et al., 1951; Baker et al., 1954) and more recently by the inclusion of progestational compounds in the feed (Nellor, 1960; Dzuik and Baker, 1962). The successful use of orally active progestational agents to synchronize the estrous cycles of gilts without a subsequent reduction in fertil...

Interaction of progesterone and estrogens on the hypothalamic center controlling estrous behavior in sheep.

Behavioral estrus of castrated and with progesterone treated ewes, induced by implantation of 17-beta-estradiol into the area controlling the sexual behavior, was completely modified as compared with that of castrated but non treated with progesterone ones. The length of behavioral estrus in the non treated ewes was 24-30 hr and its symptoms were rather weakly expressed. On the contrary, the ew...

Physiology and Endocrinology : Estrous Synchronization

47 NC and AC1 treatments (P<0.05). N digestibility was higher in both PC and AC3 treatments compared with NC and AC1 treatments (P<0.05). The RBC count was increased in ALA treatment compared with NC treatments (P<0.05). Hemoglobin in AC2 treatment was higher than NC treatment (P<0.05). Lymphocyte, WBC, IgG and total iron binding capacity were not affected among all treatments (P<0.05). The red...

Estrous Synchronization in Lactating Cows