Héritabilité des maux de pattes et relations avec les performances de reproduction de la lignée INRA 1777

Abstract : Sore hocks are the first cause of female sanitary culling in the commercial rabbit farms. The aims of his study were to analyses the performance gap of affected rabbits and estimate the heritability of pododermatitis. Records on 2933 rabbits (2200 females and 733 males) born between 2004 and 2015 of the INRA 1777 rabbit line were analyzed. Pododermatitis was registered at each reproduction cycle during the “palpation” weighing which occurs 14 days after Artificial Insemination. Females represent 96.5% of the affected rabbits. The proportion of does showing sore hocks reached 0.10% at the first palpation and 15.7% at the fifth palpation. In total, 15.6% of the females showed sore hocks at least once during the first 6 palpations. Females suffering from sore hocks have a lower fertility, a lower body weight at palpation and a lower average daily gain between palpations. They were no significant differences for the number of born alive, mortinatality and pre-weaning death rate. The heritability of pododermatitis (presence of pododermatitis at least once during the first 6 palpations) was 0.07± 0.03 with a linear model and 0.13 ± 0.05 with a threshold model. This trait might therefore be included in the breeding objectives.
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Conference papers
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https://hal.archives-ouvertes.fr/hal-01655406
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Submitted on : Monday, December 4, 2017 - 8:04:22 PM
Last modification on : Friday, June 14, 2019 - 6:21:10 PM

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  • HAL Id : hal-01655406, version 1
  • PRODINRA : 414293

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Mélanie Gunia, Elodie Balmisse, Virginie Helies, Sébastien Pujol, Julien Ruesche, et al.. Héritabilité des maux de pattes et relations avec les performances de reproduction de la lignée INRA 1777. 17. Journées de la Recherche Cunicole, Nov 2017, Le Mans, France. 205 p. ⟨hal-01655406⟩

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