Effect of late weaning and use of alternative cages on performance of does, suckling and fattening rabbits under extensive reproductive management

Alfonso Carrillo, Clara; García Rebollar, Pilar; Blas Beorlegui, Juan Carlos de; Ibáñez, M.A. y García Ruiz, Ana Isabel (2014). Effect of late weaning and use of alternative cages on performance of does, suckling and fattening rabbits under extensive reproductive management. "Livestock Science", v. 167 ; pp. 425-434. ISSN 1871-1413. https://doi.org/10.1016/j.livsci.2014.05.018.

Descripción

Título: Effect of late weaning and use of alternative cages on performance of does, suckling and fattening rabbits under extensive reproductive management
Autor/es:
  • Alfonso Carrillo, Clara
  • García Rebollar, Pilar
  • Blas Beorlegui, Juan Carlos de
  • Ibáñez, M.A.
  • García Ruiz, Ana Isabel
Tipo de Documento: Artículo
Título de Revista/Publicación: Livestock Science
Fecha: Septiembre 2014
Volumen: 167
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Producción Agraria
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The effects of the combined use of long lactation periods (46 days) with alternative cages on the reproductive and growth performance of 104 rabbit does and their litters during five consecutive reproductive cycles were studied. Half of does were housed in conventional polyvalent cages (39 cm×100 cm×30 cm) and the other half in alternative polyvalent cages (39 cm×100 cm×60 cm), with a raised platform. Half of the rabbit does in each type of cage were weaned at 32 and the other half at 46 days after parturition. Longer lactation negatively affected the body weight (P<0.001), fat and energy content (P<0.05) of rabbit does at the end of the lactation period, but this effect decreased with the number of parturitions. Fertility, prolificacy and doe mortality were not affected by lactation length. Late weaning led to higher litter size (by 8.9%) and litter weight (by 11.3%) at the end of growing period (P<0.001) and lower feed conversion ratio per cage during the experimental period (13.5%) than weaning at 32 day (P<0.001). These results were paralleled by lower mortality (12.6 vs. 17.6%; P<0.01) of young rabbits weaned later during the overall experimental period. Differences in performance as a result of different weaning ages were only observed during cycles with worst health status (third and fifth cycles) in which late weaning decreased mortality. Type of cage did not affect doe body weight and body condition, mortality, fertility, prolificacy and litter size during the five reproductive cycles. Nevertheless, at day 21 litter weight and feed conversion ratio between 3 and 21 day were 4.2% higher (P<0.01) and 5.0% lower (P<0.05), respectively, in animals housed in alternative rather than in conventional cages. Alternative cages also led to heavier litters at 59 days (P<0.01). It was concluded that the combined use of longer lactations and cages with higher available surface with a raised platform could be alternatives to improve animal welfare in farmed rabbit.

Más información

ID de Registro: 35784
Identificador DC: http://oa.upm.es/35784/
Identificador OAI: oai:oa.upm.es:35784
Identificador DOI: 10.1016/j.livsci.2014.05.018
URL Oficial: http://www.sciencedirect.com/science/article/pii/S1871141314002546
Depositado por: Memoria Investigacion
Depositado el: 29 Jun 2015 14:32
Ultima Modificación: 30 Sep 2015 22:56
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