Artificial insemination of rabbits with diluted semen stored up to 96 hours.


  • F.J. López Universidad Politécnica de Madrid
  • J.M.R. Alvariño Universidad Politécnica de Madrid



The effect of different duration's rabbit semen storage at 18ºC (2, 24, 48, 72, and 96 hours) on fertility and prolificacy has been studied in one experiment, where a total of 1447 artificial inseminations have been carried out using a new commercial extender, MA 24. The results indicate a similar fertility (84.14%, 83.56% and 79.73%) when increasing the time of conservation (2, 24 and 48 hours). Difference statistically significant were observed at 72 hours (67.59%) and fertility fell dramatically after 96 hours of conservation (39.23%). The number of total bom kits per litter follows the same tendency than fertility, presenting a light descent in the first conservation lntervals (8.92, 8.48 and 8.02) and an important reduction in the last ones (7.04 and 5.58). The conclusions of this work indicate that the extender MA 24 reaches a good performance for periods of conservation of the semen up to 48 hours in lactating females inseminated on day 4 postpartum, which can be considered good enough to develop a large scale utilisation of preserved rabbit semen.


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