The Role of Trans-Rectal Ultrasonography in Artificial Insemination Program
نویسنده
چکیده
The ultrasound technology has been used for various functions particularly as a tool in beef and dairy research for many years. It has become more available to the commercial livestock agriculture recently. Application of transrectal real-time ultrasonography in the study of bo‐ vine reproduction represents a technological breakthrough that has revolutionized the knowledge of reproductive biology [Boyd and Omran, 1991]. New research results derived from ultrasonic imaging has clarified the complex nature of reproductive processes such as ovarian follicular dynamics, corpus luteum function, and foetal development in farm ani‐ mals. Extensive adoption and use of ultrasonography for routine reproductive examinations of dairy cattle is its highest contribution to the dairy industry.
منابع مشابه
Efficacy of a combined protocol for re-insemination of open cows after early pregnancy diagnosis using ultrasonography and its effect on fertility
The objective of the present field study was to establish the beneficial effects of re-insemination of non-pregnant cows using ultrasonography 20 to 23 days after the artificial insemination. A total of 245 Japanese Black cows were artificially inseminated and early pregnancy diagnosis (EPD) was performed on 92 cows 20 days after insemination, using ultrasonography. The remaining 153 cows were ...
متن کاملSensitivity, specificity, predictive value and accuracy of ultrasonography in pregnancy rate prediction in Sahelian goats after progesterone impregnated sponge synchronization
Aim: This study was aimed to evaluate the sensitivity, specificity, predictive value and accuracy of ultrasonography in pregnancy rate (PR) prediction in Sahelian goats after progesterone impregnated sponge synchronization within the framework of caprine artificial insemination (AI) program in Fatick (Senegal). Materials and Methods: Of 193 candidate goats in AI program, 167 were selected (day ...
متن کاملAn investigation on the possibility of using eCG for presynchronization prior to ovsynch in dairy cow
Background: Presynchronization could enhance fertility in timed breeding programs. The best presynchronization method has to justify biological requirements and to provide practical and economic advantages. OBJECTIVES: Present study investigated the effectiveness of presynchronization with equine chorionic gonadotropin (eCG) before ovsynch (eCG-ovsynch) compared to conventional presynch-ovsynch...
متن کاملPreliminary Evaluation of Learning Performance of the Simplest Bovine Trans-rectal Palpation Phantom for Training Veterinary Students
Traditionally, animal exploitation in veterinary education in disciplines such as obstetrics is common worldwide. In addition, it is clear that veterinary schools are expected to provide sufficient opportunity for developing students’ necessary skill in bovine trans-rectal palpation by graduation. However, the veterinary medical education should be refined and animal exploitation in education b...
متن کاملO-19: A Comparison of Pelvic Magnetic Resonance Imaging, Trans-Vaginal and Trans-Rectal Sonography with Laparoscopic Findings in The Diagnosis of Deep Infiltrating Endometriosis
Background The performance of TVS, TRS and MRI for the diagnosis of DIE have been separately reported in earlier studies. However, the three methods have not been concurrently compared in terms of their overall performance and classified results as per different anatomical locations of DIE lesions in a large study population. This study was an attempt to compare pelvic magnetic resonance imagin...
متن کامل