Pascual Amorós, JJ.; Savietto, D.; Cervera Fras, MC.; Baselga Izquierdo, M. (2013). Resources allocation in reproductive rabbit does: a review of feeding and genetic strategies for suitable performance. World Rabbit Science. 21(3):123-144. doi:10.4995/wrs.2013.1236
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/32794
Title:
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Resources allocation in reproductive rabbit does: a review of feeding and genetic strategies for suitable performance
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Author:
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Pascual Amorós, Juan José
Savietto, Davi
Cervera Fras, Mª Concepción
Baselga Izquierdo, Manuel
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UPV Unit:
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Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal
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Issued date:
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Abstract:
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[EN] This article reviews how frequent feeding and selection programmes can affect resource allocation in rabbit does during reproduction. The consequences of these programmes and the central role of body condition for ...[+]
[EN] This article reviews how frequent feeding and selection programmes can affect resource allocation in rabbit does during reproduction. The consequences of these programmes and the central role of body condition for suitable female performance are analysed considering genetic level, health and welfare. Future reproductive potential of reproductive rabbit females is decided before first partum. There is enough evidence of a possible threshold for the rabbit female birth weight to reach the beginning of reproductive life in a suitable body condition to maximise their future reproductive potential. The moment of first mating could be identified as the last of the 'pure' data on the animal, a sign of the animal soma that is probably related to its productive potential. An adequate feeding system during rearing and first pregnancy is relevant for the reproductive
performance of rabbit females in the short and long term. The body condition of females changes during the reproductive cycle and throughout their reproductive life according to their genetically determined level. The problems arise when the animals are forced to diverge from this appropriate level, increasing susceptibility to disease, other stress factors and eventual failure. Negative energy balances detected during lactation do not seem to have the strength of those observed in late pregnancy. Genetic selection for litter size at weaning has increased prolificacy, but also the ability to obtain resources without compromising the survival of rabbit females. However, it could also have increased the susceptibility of animals to the environment, focusing
more on the maternal investment in the future litter rather than on the current one under restricted conditions to maximise their fitness. Rabbit does selected for reproductive longevity have a greater soma, which enables them to better cope with the possible productive challenges. There is also evidence that they have greater plasticity in using their soma, making them more robust to overcome demanding situations. In addition, there is evidence of a possible improvement of immune system modulation in such robust animals.
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Subjects:
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Rabbit female
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Rearing management
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Genetic selection
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Nutrient partitioning
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Body condition
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Copyrigths:
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Reserva de todos los derechos
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Source:
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World Rabbit Science. (issn:
1257-5011
) (eissn:
1989-8886
)
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DOI:
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10.4995/wrs.2013.1236
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Publisher:
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Editorial Universitat Politècnica de València
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Publisher version:
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https://doi.org/10.4995/wrs.2013.1236
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Project ID:
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MICINN/AGL2000-0595-C03-03
MICINN/AGL 2004-02710
MICINN/AGL2008-00273
MICINN/AGL2011-30170-C02-01)
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Thanks:
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This work was carried out thanks to the research developed in the last decade with the support of different
grants from the Spanish Ministry of Science and Innovation (AGL2000-0595-C03-03, AGL 2004-02710, AGL2008-00273 ...[+]
This work was carried out thanks to the research developed in the last decade with the support of different
grants from the Spanish Ministry of Science and Innovation (AGL2000-0595-C03-03, AGL 2004-02710, AGL2008-00273 and
AGL2011-30170-C02-01).
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Type:
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Artículo
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