The present experiment was designed for estrus induction in post-partum anestrus cattle. A total of 120 cows were examined reproductive status, and 30 incorporated induction, including 24 6 normal cyclic cows. assigned to 5 groups (6 animals per group). group-1 induced using Ovsynch protocol, while group-2 inserted TRIU-B (958 mg progesterone) intra-vaginal inseminated at a fixed time. group-3 ...

Two experiments were conducted to determine the effect of estradiol cypionate (ECP), when incorporated into a conventional GnRH-PGF(2alpha)-GnRH timed artificial insemination protocol (Ovsynch), on systemic estradiol (E(2)), time and incidence of ovulation, luteal development, and conception rate in Holstein cows. Our objective was to determine if administration of 0.25 mg of ECP at the time of...

Aim: The aim was to evaluate the estrus response, conception rate and plasma profile of progesterone, protein and cholesterol following use of different hormonal protocols in anestrus and repeat breeding buffaloes. Materials and Methods: This study was carried out on 20 true anestrus, 20 repeat breeders, and 10 normal cyclic buffaloes. Ten anestrus buffaloes each were treated with standard cont...

Suni tohumlama yönteminin başarısı, birçok diğer etken ile birlikte, uygulayıcının spermayı doğru zamanda genital kanala vermesinden geçmektedir. Süt hayvancılığında ıslah sonucu meydana gelen metabolizma artışı, üreme hormonlarının miktarında ve yarılanma sürelerinde değişikliklere sebep olmaktadır. Bu durum, östrus bulgularının görülmesinde dolayısıyla elde edilecek gebelik sonuçlarının doğru...

Post-calving anestrus leads to serious economic losses and is the reason for animal culling. Deficiency of estrogen hypofunctional state ovaries due negative energy balance, as well violations timing postpartum involution uterus are considered leading causes an extended anovulatory period in fresh cows. A comparison was made therapeutic efficacy Ovsynch scheme Ovariovit preparation when used fi...

the study was undertaken to compare the efficacy of an estradiol-17β + cidr based protocol with the conventional ovsynch + cidr based protocol for synchrony of wave emergence and ovulation in murrah buffalos. in group i (n=25), on day 0 (beginning of experiment), buffaloes were administered a cidr device (1.38 g p4) and concurrently received 1.5 mg e-17β. on day 9, the cidr was removed and a pr...

The objective of this study was to characterize the circulating concentrations of estradiol-17β (E-17β) after treatment with different types or doses of estrogens in the absence (Experiment 1) or presence (Experiment 2) of a dominant follicle in lactating cows. In Experiment 1, cows (n = 12) had all follicles > 5 mm removed by ultrasound-guided follicular aspiration every 12 h throughout the bl...