Nutritional impact on health and performance in intensively reared rabbits

Blas Beorlegui, Juan Carlos de (2012). Nutritional impact on health and performance in intensively reared rabbits. "Animal" ; https://doi.org/10.1017/S1751731112000213.

Description

Title: Nutritional impact on health and performance in intensively reared rabbits
Author/s:
  • Blas Beorlegui, Juan Carlos de
Item Type: Article
Título de Revista/Publicación: Animal
Date: February 2012
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Producción Animal [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The present work summarizes research related to the definition of nutrient recommendations for feeds used in the intensive production of rabbit's meat. Fibre is the main chemical constituent of rabbit diets that typically contain 320 to 360 and 50 to 90 g/kg of insoluble and soluble fibre, respectively. Instead, the dietary contents of cereal grains (∼120 to 160 g/kg), fat (15 to 25 g/kg) and protein concentrates (150 to 180 g/kg) are usually low with respect to other intensively reared monogastric animals. Cell wall constituents are not well digested in rabbits, but this effect is compensated by its stimulus of gut motility, which leads to an increasing rate of passage of digesta, and allows achieving an elevated dry matter intake. A high feed consumption and an adequate balance in essential nutrients are required to sustain the elevated needs of high-productive rabbits measured either as reproductive yield, milk production or growth rate in the fattening period. Around weaning, pathologies occur in a context of incomplete development of the digestive physiology of young rabbits. The supply of balanced diets has also been related to the prevention of disorders by means of three mechanisms: (i) promoting a lower retention time of the digesta in the digestive tract through feeding fibre sources with optimal chemical and physical characteristics, (ii) restricting feed intake after weaning or (iii) causing a lower flow of easily available substrates into the fermentative area by modifying feed composition (e.g. by lowering protein and starch contents, increasing its digestibility or partially substituting insoluble with soluble fibre), or by delaying age at weaning. The alteration in the gut microbiota composition has been postulated as the possible primary cause of these pathologies.

More information

Item ID: 11992
DC Identifier: http://oa.upm.es/11992/
OAI Identifier: oai:oa.upm.es:11992
DOI: 10.1017/S1751731112000213
Deposited by: Memoria Investigacion
Deposited on: 19 Sep 2012 07:24
Last Modified: 21 Apr 2016 11:10
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