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Relationships between ovulation rate, embryo survival and litter size in rabbits

Published online by Cambridge University Press:  02 September 2010

M. A. Santacreu ,
P. Gou  and
A. Blasco
M. A. Santacreu
Affiliation:
Departamento de Ciencia Animal, Universidad Politécnica de Valencia, Camino de Vera 14, Valencia 46022, Spain
P. Gou
Affiliation:
Departamento de Ciencia Animal, Universidad Politécnica de Valencia, Camino de Vera 14, Valencia 46022, Spain
A. Blasco
Affiliation:
Departamento de Ciencia Animal, Universidad Politécnica de Valencia, Camino de Vera 14, Valencia 46022, Spain
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Abstract

A total of 233 does were subjected to laparoscopy in order to study the relationships between litter size (LS) and its components, using linear and quadratic models. The relationships were essentially linear, but there was a quadratic relationship between ovulation rate (OR) and the number of live embryos at 12 days of gestation. OR explained a small proportion only, but prenatal survival a greater proportion of the variation in LS. Both embryo survival and foetal survival were of similar importance and appeared to operate independently.

Keywords

embryo mortalitylitter sizeovulation raterabbits
Type
Research Article
Information
Animal Production , Volume 55 , Issue 2 , October 1992 , pp. 271 - 276
Copyright
Copyright © British Society of Animal Science 1992

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References

Adams, C. E. 1960. Studies on prenatal mortality in the rabbit, Oryctolagus cuniculus: the amount and distribution of loss before and after implantation. Journal of Endocrinology 19: 325–344.CrossRefGoogle Scholar
Adams, C. E. 1962. Studies on prenatal mortality in the rabbit, Oryctolagus cuniculus: the effect of transferring varying numbers of eggs. Journal of Endocrinology 24: 471–490.CrossRefGoogle ScholarPubMed
Blichfeldt, T. and Almlid, T. 1982. The relationship between ovulation rate and embryonic survival in gilts. Theriogenology. 18: 615–620.CrossRefGoogle ScholarPubMed
Bolet, G., Brun, J. M. and Hulot, F. 1988. Relation between ovulation rate and embryonic survival in various strains of rabbits. Proceedings of the fourth world rabbit congress, Budapest, vol. 1, pp. 149–157.Google Scholar
Bolet, G. and Legault, C. 1982. New aspects of genetics improvement of prolificacy in pigs. Proceedings of the second world congress on genetics applied to livestock production, Madrid, vol. v, pp. 548–567.Google Scholar
Cameron, N. D. and Thompson, R. 1986. Design of multivariate selection experiments to estimate genetic parameters. Theoretical and Applied Genetics 72: 466–476.CrossRefGoogle ScholarPubMed
Christenson, R. K., Leymaster, K. A. and Young, L. D. 1987. Justification of unilateral hysterosctomy-ovariectomy as a model to evaluate uterine capacity in swine. Journal of Animal Science 65: 738–744.CrossRefGoogle Scholar
Draper, N. R. and Smith, H. 1981. Applied regression analysis, pp. 40–43. Wiley, New York.Google Scholar
Garcia, F., Baselga, M. and Pla, M. 1983. Mortalidades embrionaria y fetal en las distintas etapas de la gestacion en conejo de came. Anales del Instituto Nacional de Investigation Agraria (Serie Ganaderia) 18: 11–27.Google Scholar
Garcia, F. and Perez, A. 1989. Efectos de la lactacion y numero de lactantes sobre la monta, ovulacion y supervivencia fetal hasta el parto, evaluados por laparoscopia, en conejas multiparas. Information Tecnica Economica agraria 80: 3–10.Google Scholar
Hafez, E. S. E. 1964. Implantation capacity and prenatal development in the rabbit as affected by maternal environment. Proceedings of the fifth international congress animal reproduction, Trento, vol. 3, pp. 174–180.Google Scholar
Hafez, E. S. E. 1969. Fetal survival in undercrowded and overcrowded unilaterally pregnant uteri in the rabbit. Proceedings of the sixth congress on animal reproduction, Paris.Google Scholar
Haley, C. S., Avalos, E. and Smith, C. 1988. Selection for litter size in the pig. Animal Breeding Abstracts 56: 317–332.Google Scholar
Johnson, R. K., Zimmerman, D. R. and Kittok, R. J. 1984. Selection for components of reproduction in swine. Livestock Production Science 11: 541–558.CrossRefGoogle Scholar
Johnson, R. K., Zimmerman, D. R., Lamberson, W. R. and Sasaki, S. 1985. Influencing prolificacy of sows by selection for physiological factors. Journal of Reproduction and Fertility, Suppl. 33, pp. 139–149.Google ScholarPubMed
King, R. H. and Williams, I. H. 1984. The influence of ovulation rate on subsequent litter size in sows. Theriogenology. 21: 677–680.CrossRefGoogle ScholarPubMed
Koenig, J. L. F., Zimmerman, D. R., Eldridge, F. E. and Kopf, J. D. 1986. The effect of superovulation and selection for high ovulation rate on chromosomal abnormalities in swine ova. Journal of Animal Science 63: suppl. 1, p. 202.Google Scholar
Molina, I. 1987. Determination de los efectos geneticos directos y maternos sobre la tasa de ovulacion y la viabilidad embrionaria y fetal en el conejo, mediante aplicacion de las tecnicas de transferencia de embriones y laparascopia. Ph.D. Thesis, Universidad Politecnica de Valencia, Espana.Google Scholar
Neal, S. M. and Johnson, R. K. 1986. Selection for components of litter size in swine: genetic parameters and expected response. Proceedings of the third world congress genetics applied to livestock production, Lincoln, Nebraska, XI, pp. 228–232.Google Scholar
Pearson, K. 1987. Mathematical contributions to the theory of evolution — on a form of spurious correlation which may arise when indices are used in the measurement of organs. Proceedings of the Royal Society, London 60: 489–498Google Scholar
Pla, M. 1984. Modelos biologicos de caracteres reproductivos en el conejo de came. Ph.D. Thesis, Universidad Politecnica de Valencia, Espana.Google Scholar
Rochambeau, H. De. 1988. Genetics of rabbits for wool and meat production. Proceedings of the fourth congress of the World Rabbit Science Association, vol. 2, pp. 1–68.Google Scholar
Santacreu, M. A., Viudes-de-Castro, M. P. and Blasco, A. 1990. Evaluation par coelioscopie des corps jaunes et des embryons. Influence sur la taille de portée chez la lapine. Reproduction Nutrition et Developpement 30: 583–588.CrossRefGoogle Scholar
Swierstra, E. E. and Dyck, G. W. 1976. Influence of the boar and ejaculation frequency on pregnancy rate and embryonic survival in swine. Journal of Animal Science 42: 455–460.CrossRefGoogle ScholarPubMed
Torres, S. 1982. Etude de la mortalité embryonnaire chez la lapine. Troisième journées de la recherche cunicole en France, Paris, communication no. 15.Google Scholar