Department of Physiology, Faculty of Veterinary Medicine, University of Sadat City, Sadat, Egypt.
Veterinary Research Division, Department of Animal Reproduction and Artificial Insemination, National Research Centre, Dokki, Egypt.
Reprod Domest Anim. 2021 Dec;56(12):1506-1510. doi: 10.1111/rda.14012. Epub 2021 Sep 13.
This study was undertaken to evaluate the effect of body condition score (BCS) on testicle and epididymis biometrics, semen characteristics and testosterone level in Egyptian Jack. This study was conducted on 50 mature Jacks divided according to their body condition score into four groups: Poor (G1), moderate (G2), good (G3) and fat (G4). The complete testis was collected immediately after execution in the Giza Zoo abattoir; then, the epididymis was carefully dissected at the testicular junction. Biometrical measures including length, weight and volume were determined for the right and left testis and epididymis. Also, epididymal sperm was collected from all examined animas and evaluated for sperm concentration, progressive motility, viability and sperm abnormalities. Serum samples were collected for determination of total testosterone level. Results showed that the body condition score of the examined animal affects their biometrical measure of testicles and epididymis. There is a significant decrease (p < .05) in biometrical measures for the testicles and epididymis, sperm concentration, motility, viability and testosterone level in poor BCS animals (G1). The highest values were recorded in Good BCS (G3) Jacks. Conclusion: Jacks with good BCS (G3) should be selected for breeding activity in donkey.
本研究旨在评估身体状况评分（BCS）对埃及公驴睾丸和附睪生物测量、精液特性和睪酮水平的影响。本研究在 50 头成熟的公驴中进行，根据身体状况评分分为四组：差（G1）、中（G2）、好（G3）和肥胖（G4）。在吉萨动物园屠宰场处死公驴后，立即采集完整的睾丸；然后，在睾丸连接处小心地解剖附睪。测量右侧和左侧睾丸和附睪的长度、重量和体积等生物测量指标。还从所有检查的动物中收集附睾精子，并评估精子浓度、前向运动、活力和精子异常。采集血清样本以测定总睪酮水平。结果表明，检查动物的身体状况评分会影响其睾丸和附睪的生物测量指标。在身体状况评分差（G1）的动物中，睾丸和附睪的生物测量指标、精子浓度、活力、活率和睪酮水平显著降低（p<0.05）。在身体状况评分好（G3）的公驴中记录到最高值。结论：应选择身体状况评分良好（G3）的公驴进行驴的繁殖活动。
