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Effects of artificial photoperiods on sexual behaviour and sperm output in the rabbit

Published online by Cambridge University Press:  02 September 2010

M. Theau-Clément ,
N. Michel ,
J. Esparbié  and
G. Bolet
M. Theau-Clément
Affiliation:
INRA, Station d'Amélioration Génétique des Animaux, BP 27, 31326 Castanet Tolosan Cedex, France
N. Michel
Affiliation:
INRA, Station d'Amélioration Génétique des Animaux, BP 27, 31326 Castanet Tolosan Cedex, France
J. Esparbié
Affiliation:
INRA, Station d'Amélioration Génétique des Animaux, BP 27, 31326 Castanet Tolosan Cedex, France
G. Bolet
Affiliation:
INRA, Station d'Amélioration Génétique des Animaux, BP 27, 31326 Castanet Tolosan Cedex, France
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Abstract

Male rabbits aged from 4 to 4·5 months were subjected to a 8L: 16D photoperiod for 4 weeks and were then split into two groups. One group of13 males was maintained at 8L: 16D (group 8). The other included 16 males and was submitted to 16L: 8D (group 16). Two successive ejaculates zvere collected and analysed once a week for 6 months. Animals from group 8 were sexually more active and ejaculated significantly larger volumes of semen than those from group 16. Performance of males from group 16 was better for all other measurements, whether these were qualitative (motility, percentage of live spermatozoa) or quantitative. Averages for the total number of spermatozoa and number of live spermatozoa per ejaculate were significantly greater in males submitted to 16L: 8D (509 and 408 v. 452 and 344 × 106 spermatozoa, respectively). However the testes of rabbits in group 8 had a significantly greater volume than those in group 16 (22·3 v. 17·4 cm3, P < 0·001). After the animals were slaughtered when 11 months of age, the volume and weight of the testes and the testis and epidydimis reserves did not differ significantly between groups. Under our experimental conditions, the sperm output of bucks exposed to 16 h of daylength was greater than that of bucks exposed to 8 h of daylength but in vivo and post-mortem measurements did not reflect this difference.

Keywords

photoperiodrabbitssexual behaviourspermatozoatestes
Type
Research Article
Information
Animal Science , Volume 60 , Issue 1 , February 1995 , pp. 143 - 149
Copyright
Copyright © British Society of Animal Science 1995

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References

Bonnano, A. and Costanzo, D. 1987. Influenza di fattori fisiologici e climatici sul determinismo dei principali parametri riproduttivi di coniglie sottoposte ad inseminazione artificiale. Rivista di Coniglicoltura 24 (3): 33–39.Google Scholar
Boussit, D. ed. 1989. Reproduction et insémination artificielle en cuniculture. Association Française de Cuniculture, Lempdes, Paris.Google Scholar
Boyd, L. L. 1985. Effect of photoperiod and melatonin on testis development and regression in wild European rabbits. Biology of Reproduction 33: 21–29.CrossRefGoogle ScholarPubMed
Carson, W. S. and Amann, R. P. 1972. The male rabbit. 6. Effects of ejaculation and season on testicular size and function. Journal of Animal Science 34: 302–309.CrossRefGoogle Scholar
Colas, G. 1979. Fertility in the ewe after artificial insemination with fresh and frozen semen and the induced oestrus, and influence of photoperiod on the semen quality of the ram. Livestock Production Science 6: 1153–1166.CrossRefGoogle Scholar
Corteel, J. M. 1975. Production du sperme chez le bouc: variations saisonnières de la quantité et de la qualité de sperme récolté selon l'âge des animaux. Premières Journées Recherche Ovine et Caprine, INRA-ITOVIC-Paris II: 4–17.Google Scholar
Corteel, J. M. 1977. Production, storage and insemination of goat semen. Management of Reproduction in Sheep and Goat Symposium, University of Wisconsin, Madison, pp. 41–57.Google Scholar
Courot, M. 1980. Rythmes de production du sperme chez les mammifères domestiques. Rythmes de reproduction (ed. , Masson), pp. 33–40. Paris.Google Scholar
Desjardins, C., Kirton, K. T. and Hafs, H. D. 1968. Sperm output of rabbits at various ejaculation frequencies and their use in the design of experiments. Journal of Reproduction and Fertility 15: 27–32.CrossRefGoogle ScholarPubMed
Hu, J. F., Hong, Z. Y., Leng, H. R. and Wang, Q. X. 1988. The variabilities in the semen quality of semen of German angora and China angora in summer and autumn. Proceedings of the fourth congress of World Rabbit Science Association, Budapest, vol. 2, p. 124.Google Scholar
Macmillan, K. L. and Hafs, H. D. 1967. Semen output of rabbits ejaculated after varying sexual preparation. Proceedings of the Society for Experimental Biology and Medicine 125: 1278–1281.CrossRefGoogle ScholarPubMed
Ortavant, R., Pelletier, J., Ravault, J. P., Thimonier, J. and Volland-Nail, P. 1985. Photoperiod: main proximal and distal factor of the circannual cycle of reproduction in farm animals. Oxford Review of Reproduction and Biology 7: 305–345.Google Scholar
Panella, F. and Castellini, C. 1990. Environmental and genetic factors affecting semen characters in the rabbit. Rivista di Coniglicoltura 27: 39–41.Google Scholar
Paufler, S. K., Van Vleck, L. D. and Foote, R. H. 1969. Estimation of testicular size in the live rabbit. International journal of Fertility 14: 188.Google ScholarPubMed
Pelletier, J., Chemineau, P. and Delgadillo, J. A. 1988. Seasonality of sexual activity and its photoperiod control in the adult ram and he-goat. Proceedings of the eleventh international congress of animal reproduction and artificial insemination, Dublin.Google Scholar
Theau-Clément, M., Thébault, R. G., Bolet, G. and Rochambeau, H. de. 1991. [Reproduction of French Angora rabbits — ovulation rate of does and semen production of bucks.] Reproduction Nutrition et Développement 31: 667–673.CrossRefGoogle Scholar
Walter, M. R., Martinet, L., Moret, B. and Thibault, C. 1968. Régulation photopériodique de l'activité sexuelle chez le lapin mâle et femelle. Archives Anatomic Histologie et Embryologie 51: 773–780.Google Scholar