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Communication dans un congrès

Biological and economic consequences of introgression of the FecB gene into the French Mérinos d’Arles sheep

Abstract : The information analysed comes from three datasets collected on an experimental farm (‘Le Merle’) where the Booroola gene was first introgressed into the Mérinos d’Arles breed in 1983, and a private farm where Booroola-carrier ewes were bred for production. Reproduction (ovulation rate, litter size, survival rate) and production (body weight, carcass weight, dressing percentage) traits were compared between B+ and ++ animals as well as controls from the Mérinos d’Arles breed. The increase in ovulation rate caused by the Booroola gene had a dramatic effect on litter size at birth, and consequently changed the survival and growth of the lambs. Globally, B+ ewes were able to produce about 50–65% extra lambs, the result being consistent across comparisons. Efforts are now under way by the breeders to exploit the gene at a higher level.
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Communication dans un congrès
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https://hal.inrae.fr/hal-02756687
Déposant : Migration Prodinra <>
Soumis le : mercredi 3 juin 2020 - 23:14:47
Dernière modification le : mercredi 1 juillet 2020 - 12:39:42

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  • HAL Id : hal-02756687, version 1
  • PRODINRA : 38889

Citation

Jacques Teyssier, Loys Bodin, Celine Maton, Pierre Marie Bouquet, Jean Michel Elsen. Biological and economic consequences of introgression of the FecB gene into the French Mérinos d’Arles sheep. The Helen Newton Turner Memorial International Workshop, Nov 2008, Pune, Maharashtra, India. ⟨hal-02756687⟩

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