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Communication Dans Un Congrès Année : 2016

Adjusting the age pyramid to promote a more sustainable and healthful rabbit production system

Résumé

On average, a commercial rabbit female currently has no more than six litters her entire life, leading to a young age-structure. Because the investment in maintenance that prolongs lifespan trades-off with early reproductive effort, a more sustainable and healthful rabbit-production system would increase the proportion of females with more than six litters. The arguments for this suggestion are based in parts of life-history theory that have been experimentally confirmed in other organisms. Here we explore the effect on the age- structure of arbitrarily lowering the overall culling rate of a typical commercial population by 25 points of percentage (from 191 to 138 females culled). When we assumed a lower culling rate, we found that the age- structure of this commercial population would change to a more balanced proportion of mature (i.e.females having six or more litters) and young females. The new-age structure would improve adaptation to local conditions, favor health and robustness, and lengthen potential lifespan.
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Dates et versions

hal-01608109 , version 1 (03-06-2020)

Identifiants

  • HAL Id : hal-01608109 , version 1
  • PRODINRA : 394025

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Davi Savietto, Luis Ródenas, Eugenio Martínez-Paredes, Juan José Pascual. Adjusting the age pyramid to promote a more sustainable and healthful rabbit production system. 11. World Rabbit Congress, Jun 2016, Qingdao, China. 413 p. ⟨hal-01608109⟩
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