نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی سابق کارشناسی ارشد، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج
2 دانشیار، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج
3 دکتری حرفهای دامپزشکی، مرکز اصلاح نژاد و بهبود تولیدات دامی کشور، کرج
4 دانشجوی دکتری، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
This study aimed to determine the effects of different centrifuging protocols (different rotation and time) on Caspian horse sperm characteristics. In this study, semen samples from four healthy adult Caspian pony stalian were collected using an artificial vagina and then diluted in milk phosphocaseinat based extender. Then semen samples were divided into seven equal parts, which part assigned to treatments including centrifugation treatments (500×g, 1000×g and 2000×g each for 4 and 7 minutes) and without centrifuge (control). Cooling of treatments were done at 0, 24 and 48 hours after centrifugation. Sperm motion characteristics, viability and percentages of healthy sperm were assessed. The results showed that motility, viability and percentages of healthy sperm reduced in 2000×g treatments (p<0.05). Stored sperm in 500×g and 1000×g treatments had better quality compared to control group (p<0.05). In addition, compared to 2000×g treatment, in 500×g and 1000×g treatments a less recovery rate was observed (p<0.05). In conclusion, Caspian horse's semen in treatment with centrifuging for 7 minutes at 1000 g, showed better result.
کلیدواژهها [English]