Laparoscopic insemination with low concentration semen in goats

Ting-Chieh Kang

　　The aim of this study was to evaluate laparoscopic artificial insemination (AI) with frozen-thawed semen on pregnancy rate, delivery rate and the average litter size in goats. The results showed that when using high concentration semen (100 × 106 spermatozoa/mL), the pregnancy rate, delivery rate, and the average litter size of traditional and laparoscopicAI were 60.0% (6/10) vs. 77.8% (7/9),100% (6/6) vs. 85.7% (6/7), and 1.2 (7/6) vs. 1.3 (8/7), respectively. It also showed that no matter AI was performed at one or both uterine horn resulted in similar trend in the pregnancy rate, delivery rate and average litter size. The results of laparoscopic artificial insemination with 5, 25, 50 and 75 × 106 spermatozoa/mL resulted in a pregnancy rate (45 days post Insemination) of 11% (1/9), 10% (1/10), 50% (5/10), and 30% (3/10), respectively.