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논문 기본 정보

자료유형
학술저널
저자정보
이명섭 (서울대학교 농업생명과학대학 축산과학기술연구소)
저널정보
한국동물번식학회 한국동물번식학회지 한국동물번식학회지 제20권 제3호
발행연도
1996.1
수록면
271 - 278 (8page)

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The present study was carried out to sex effectively mouse and rabbit embryos using rat H-Y antiserum and to improve the rate of rat producing H-Y antiserum with H-Y antibody. The H-Y antiserum was prepared from inbred SD strain female rat immunized by intrasplenic injection and subsequent intraperitioneal booster of testis cell of syngenic male newborn rat. the titer of antiserum was identified by in vitro cytotoxicity test of mouse embryos. The rabbit embryos exposed to the H-Y antiserum was classified to the developed (H-Y negative) or delayed (H-Y positive) group. The H-Y negative rabbit embryos were transferred to recipients and sex of offspring was examined. 1. When mouse embryos were exposed to the rat H-Y antisera, the ratio of embryos developed vs delayed was various. The H-Y antisera where the ratio of embryos developed vs delayed showed the range of 40~60% were recognized as having titer of H-Y antibody. 2. When the subsequent intraperitioneal boosters were followed after priming of intrasplenic injection of H-Y antigen, the rate of rat producting the H-Y antiserum with H-U antibody was 13, 27, 70 and 73% in control, 1st B, 2nd B and 3rd B, respectively. The rate in 2nd B and 3rd B was significantly(P<0.05) higher than that in control and 1st B. 3. When the rabbit morulae were exposed to the rat H-Y antiserum with H-Y antibody, the ratio of morulae developed versus delayed was 42:58% and it was close to the natural sex ratio 50:50%. It was confirmed that the rat H-Y antiserum was cross reactive to the rabbit morulae. 4. When the H-Y negative rabbit embryos were transferred to the recipients, the pregnancy rate was 50% and 83% of the newborns were females. In conclusion, the rat H-Y antiserum with high titer of H-Y antibody was able to be obtained from the female rat immunized by the intrasplenic injection followed by the second intrapent oneal booster of testis cells at a week interval. When the rabbit embryos negative to the rat H-Y antiserum were transferred, 83% of the newborns were females.

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