The objectives of this study were 1) to determine the effects of adding a CIDR to the Ovsynch protocol on plasma concentrations of estradiol-17β and progesterone and conception in dairy cows with cystic ovarian diseases and 2) to examine associations among the estradiol-17β and progesterone concentrations and conception. Cows were diagnosed as having cystic ovarian diseases if they were found t...

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 ...

| This study investigated the efficiency of the previously used controlled internal drug release (CIDR) stored for 30 days before reusing. In the first experiment, twenty seven Holstein cows at the day of estrus (day 0) received either no treatment (control), new or reused CIDR and blood samples were collected at day 0, 1, 3 and 7. At day 1 and 3, serum progesterone concentration in cows receiv...

La situación económica mundial requiere de prácticas manejo eficaces para mejorar la rentabilidad los establecimientos producción leche, especialmente, en ganadería trópico. El objetivo es demostrar el efecto eficiencia reproductiva mediante uso dos protocolos (eCG y Ovsynch) IATF ganado bovino metodología fue tratamientos, con un diseño bloque completamente al azar; se aplicaron bases Ovsynch ...

BACKGROUND AND AIM Suboestrus constitutes the largest factor responsible for poor reproductive efficiency in buffaloes. Therefore, oestrus synchronization (OS) and fixed-time artificial insemination (AI) is considered an alternative approach to enhance reproductive efficiency in buffaloes. Thus, the present study was carried out to study the efficacy of modified Ovsynch protocol with fixed time...

Protokol ovulation synchronization (ovsynch) dirancang untuk dapat menyerentakkan ovulasi, sehingga inseminasi buatan (IB) dilakukan secara repat waktu/fixed time pada sapi dara tanpa diperlukan deteksi estrus. Namun, efektivitas dari ovsynch berbasis progesteron intravginal melalui pengamatan dinamika ovarium bangsa yang berbeda, Sapi Friesian Holstein (FH) dan persilangannya dengan Belgian Bl...

Ovsynch senkronizasyon protokolü östrojen tespiti olmadan zamanlanmış suni tohumlama sağlayan pratik bir yöntemdir. Östrus ve yumurtlamayı senkronize etmek için süt ineklerinde yaygın olarak uygulanır. Bu çalışmada Holştein ırkı ineklerde ile β-karoten enjeksiyonun döl verimi üzerine etkisi araştırıldı. 
 Araştırmada 75 baş, postpartum 40-150. günleri arasında yaş ortalaması 45 ay olan hol...