This study was carried out to establish an effective system for embryo transfer techniques by educational-industrial complex. The embryos of Korean Cattle were transferred into a total of 79 recipients. The pregnancy rate were higher in Korean Cattle (38/53, 72%) than Holstein (17/26, 65%) in recipients. However, there were no significantly difference between Korean Cattle and Holstein in recipients. In embryo transfer using fresh embryos (28/39, 72%), the pregnancy rate was slightly higher than frozen-thawed embryos (68%, 27/40). In another experiment, the number of transferred embryos showed no difference in pregnancy rate, but when two embryos (75%, 21/28) transferred, the pregnancy rate was slightly higher than with one embryo (65%, 33/51). In summary, it will be useful to apply effective system for improvement of pregnancy rate and increase of the income in a farmhouse on embryo transfer of Korean Cattle by educational-industrial complex.

ABSTRACT   Ⅰ. 서론   Ⅱ. 재료 및 방법    1. 체외수정란의 생산체계    2. 동결 수정란의 생산체계    3. 연구범위    4. 연구내용   Ⅲ. 결과 및 고찰    1. 수정란이식 현황    2. 수란우의 영향    3. 신선 및 동결수정란의 수태율    4. 이식 수정란 수와 수태율   Ⅳ. 요약   Ⅴ. 인용문헌

• 이승형(강원대학교 동물자원과학대학) | Seung Hyung Lee
• 정희태(강원대학교 동물자원과학대학) | Hee-Tae Cheong
• 양부근(강원대학교 동물자원과학대학) | Boo-keun Yang
• 김정익(강원대학교 동물자원과학대학) | Choung-Ik Kim
• 박춘근(강원대학교 동물자원과학대학) | Choon-Keun Park Corresponding Author