우수종돈 암퇘지 품종별 체내 수정란 생산비교 및 비외과적 수정란 이식에 관한 연구

• Published in: Journal of animal reproduction & biotechnology (Online) pp. 215 - 219
• Main Authors: 정용대, 정진영(농촌진흥청 국립축산과학원, 사수진(농촌진흥청 축산기술연구소, 김기현, 유동조(농촌진흥청 축산기술연구소, 최정우, 장현준, 박성권, 조은석, 우제석(농촌진흥청 축산기술연구소
• Format: Journal Article
• Language: Korean
• Published: 사단법인 한국동물생명공학회 30.09.2016
• Subjects: 축산학
• ISSN: 2671-4639; 2671-4663

Value of excellent breeding animals is important in livestock industry, but their economic life time is limited. And, many countries have been trying procuration of genetic resource in good animals. Therefore, this study was conducted to determine embryo production and to test efficiency of embryo transfer via non-surgical artificial insemination (AI) in different breed of superior sows. A total of 17 sows were used in this experiment (Duroc, n=10; Landrace, n=4; Yorkshire, n=3). The sows were artificially inseminated by semen of same breed boars. After 4 or 5 days following the AI, the embryos were obtained from the sows and then transferred to Landrace and Yorkshire recipients (n=3, respectively) by non-surgical method. The corpora lutea tended to be increased in Yorkshire and Landrace than Duroc(28 and 26 vs. 17, respectively). The recovery of embryo was 78.8% in Landrace, 65.4% in Duroc and 51.4% in Yorkshire. Duroc showed lower morulaes and early blastocyst embryos than 2, 4 ,8 and 16 cell. The morula in Yorkshire was higher (P<0.05) than that of Duroc (4.7 vs. 3.4). Similarly, the morulaes and early blastocyst embryos presented greater (P<0.05) in Landrace compared with other breed sows. The recipient sows were pregnant in a Landrace only. This reason may be due to little embryos inserted in the recipients. In addition, pregnancy results were limited because of the little sows. In conclusion, ovulated ovum in sows can be affected by different breed. Also, further study needed pregnant test by using the many embryo in each breed. KCI Citation Count: 0