Unilateral Intrauterine Insemination with Cryopreserved Caudal Epididymal Sperm Recovered from Refrigerated Canine Epididymides

Journal of Veterinary Medical Science

Tatsuya HORI¹  Arata HAYAMA¹  Toshihiko TSUTSUI¹  Eiichi KAWAKAMI¹  Kumi HAGIUDA¹  Shinobu ENDO¹ 

[1] Department of Reproduction, Nippon Veterinary and Animal Science University

关键词: canine;    cryopreservation;    epididymal sperm;    intrauterine insemination;    refrigeration;   

DOI  :  10.1292/jvms.67.1141

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(28)Cited-By(10)Canine epididymides were excised and immediately stored at 4°C for 48 hr, and the qualities of caudal epididymal sperm after recovery and cryopreservation were evaluated. To confirm the fertility of the cryopreserved caudal epididymal sperm, artificial intrauterine insemination was performed. The sperm motility (61.0%) immediately after recovery from caudal epididymis stored at 4°C for 48 hr was significantly lower than those of sperm stored for 0 and 24 hr (88.6 and 80.7%, respectively), but there was no significant difference after freeze-thawing (0-, 24-, and 48-hr storage groups: 27.9, 24.3, and 28.3%, respectively). The incidence of abnormal sperm immediately after recovery was significantly higher in the 24-hr and 48-hr storage groups (19.3 and 27.7%, respectively) than in the 0-hr storage group (5.6%), and a significant difference was also observed after freeze-thawing. The incidence of immature sperm with cytoplasmic droplets was significantly higher in the 48-hr storage group (18.4%) than in the 0-hr storage group (4.7%), but there was no difference after freeze-thawing. By unilateral intrauterine insemination (2 × 108 sperm), 4 of 5 bitches (80%) conceived. The above findings demonstrated that sperm motility was good even enough the incidence of abnormal sperm was high in canine epididymal sperm that were recovered from the epididymis stored at 4°C for 48 hr and cryopreseved, and that artificial intrauterine insemination resulted in a high conception rate.

【 授权许可】

Unknown