猪卵泡抑制素主动免疫对山羊生殖的影响

Effects of Swine Ovary Inhibin Immunization on Goat Reproductive Traits

Inhibin was purified from swine ovarian fluid by deposition and column deposition.The purified inhibin was diluted with ureasodiumacetate,and then was mixed with Freund adjuvant with same volume.Each of the twenty goats was given subcutaneous injections of the purified inhibin 2 mg at neck.The goats were given boosterinjections of the inhibin 1 mg that was mixed with ureasodiumacetate and Freund incomplete adjuvant after 30 and 50 days.Five goats in control group were given admixture of urea and sodium acetate and adjuvant at the same time.The goats were injected with prostaglandin F2a 005 mg at 21 d and 31 d after the last immunization.The blood samples were collected at 30 d,51 d and 60 d after the first immunization and before immunization.The plasma FSH concentrates was assayed with RIA and the inhibin antibody titer was assayed with agar plate diffusion method.The plasma antibody titer was 1∶16256 at 60 d after first immunization.The plasma FSH concentrates of the immunized goats was higher than those of the control group(202 vs.12 mIU/ml,PZ<005).The number of follicle and the number of corpora lutea of the immunized group were as twice as those of the control(1931 vs.1223 and 225 vs.110,respectively).It indicated that inhibin purified from swine ovarian fluid could induce goat produce high ovulation rate and it can improve reproductive traits of goat.