Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, P.O. Box 6622, Buraidah, 51452, Saudi Arabia.
Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt.
Biol Trace Elem Res. 2020 Jan;193(1):162-165. doi: 10.1007/s12011-019-01688-5. Epub 2019 Feb 26.
The objective of this study was to investigate the cadmium (Cd) profile in seminal plasma of male dromedary camel with impotentia generandi (post-coital infertility, IG group, n = 14) in comparison with known fertile males (FERT group, n = 5). Andrological examination was carried out for all animals. Semen was collected with electroejaculation and examined for volume, concentration, motility, viability, and abnormality. Seminal fluid was harvested after centrifugation and analyzed for Cd using atomic absorption spectrophotometer. Results showed that sperm concentration, motility, and viability were higher, while sperm abnormality was lower in IG group than in FERT group (P < 0.05). Cd was higher in seminal plasma of IG group than in FERT group (P = 0.04). Negative correlation was found between Cd concentration and sperm concentration (r = - 0.511, P = 0.04). There was also a tendency for negative correlation between Cd concentration and the testicular size (r = - 0.455, P = 0.05). In conclusion, Cd may be one of factors causing infertility in male dromedary camels.
本研究旨在调查患有不育症（性交后不育，IG 组，n=14）的雄性单峰驼精液中镉（Cd）的分布情况，并与已知的可育雄性（FERT 组，n=5）进行比较。对所有动物进行了男科检查。通过电刺激射精收集精液，并对体积、浓度、活力、存活率和异常情况进行检查。精液离心后，使用原子吸收分光光度计分析 Cd。结果表明，IG 组的精子浓度、活力和存活率较高，而异常精子率较低（P<0.05）。IG 组的精液中 Cd 含量高于 FERT 组（P=0.04）。Cd 浓度与精子浓度呈负相关（r=-0.511，P=0.04）。Cd 浓度与睾丸大小也呈负相关的趋势（r=-0.455，P=0.05）。综上所述，Cd 可能是导致雄性单峰驼不育的因素之一。
