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Biology of Reproduction, Vol 18, 510-515, Copyright © 1978 by Society for the Study of Reproduction

Comparison of Effects of Normal Rabbit Sera and Anti-Cock Sperm Sera on Rabbit Sperm, Including Comparison of Effects on the Sex Ratio

R. J. T. HANCOCK 1

1 Department of Genetics, University of Edinburgh, West Mains Road, Edinburgh EH9 3JN, U.K.


A suggestion that there might be antigens on bird sperm which were also found preferentially on either X-bearing or Y-bearing mammalian sperm was investigated. Antisera to bird (cock) sperm were raised in rabbits and their effects on rabbit sperm compared with those of control sera from nonimmunized rabbits, using both in vitro and in vivo tests. The antisera showed no strong anti-rabbit sperm activity in vitro, indicating that cock sperm and rabbit sperm were in general antigenically dissimilar, but a significant difference was found between the sex ratios of offspring resulting from inseminating does with rabbit semen + anti-cock sperm sera and those resulting from insemination with rabbit semen + control sera, which might reflect a small degree of antigenic similarity between cock sperm and one genotype of rabbit sperm.

Note:
ACKNOWLEDGMENTS I would like to thank Dr. R. A. Beatty, Dr. A. McLaren, Dr. P. Lake and Dr. M. Vojtiskova for helpful discussion; Mr. V. J. Coulter, Mr. J. D. Foster and Mr. D. W. Parnham for technical assistance; and Dr. Lake, J. Stewart and K. Truman for collecting the cock semen and hen blood. The work was supported by The Ford Foundation. A provisional patent has been taken out by the University of Edinburgh to cover the use of anti-bird semen antisera for controlling the sex ratio.

Submitted on January 31, 1977
Accepted on October 17, 1977






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Copyright © 1978 by the Society for the Study of Reproduction.