Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Dietary level of fibre and age at weaning affect the proliferation of Clostridium perfringens in the caecum, the incidence of Epizootic Rabbit Enteropathy and the performance of fattening rabbits
Year:2009
Research Areas
  • Animal production
Information
Abstract
An experiment was conducted in a farm affected by Epizootic Rabbit Enteropathy to investigate the effects of dietary fibre content and weaning age on Cl. perfringens proliferation in the gut and fattening mortality in growing rabbits. The experiment consisted in a 2 x 2 factorial arrangement with two weaning ages (28 vs. 42 days) and two levels of dietary neutral detergent fibre assayed with a heat stable amylase and expressed exclusive of residual ash (aNDFom; 330 vs. 425 g/kg). Controls were made during two consecutive experimental periods that differed in hygienic environmental conditions by modifying the intensity of cleaning and disinfection in the farm previous to the trial. An interaction (P < 0.001) was detected among the independent variables studied on Cl. perfringens enumeration in the caecal contents, as minimal values for this trait were obtained in non-medicated animals reared in a clean environment, and especially when they were weaned at a later age and fed the diet with the lower fibre content. The treatments studied also led to a variation in fattening mortality (from 4.7 to 34.0%), which was highly and positively correlated (P < 0.001) to the average Cl. perfringens caecal counts in each combination of treatments. The results of the current study indicate that high counts of Cl. perfringens in the gut can be used as an indicator of Epizootic Rabbit Enteropathy, and suggest that strategies designed to control its proliferation in the gut might help to limit fattening mortality in rabbit fed diets not-medicated with antibiotics.
International
Si
JCR
Si
Title
ANIMAL FEED SCIENCE AND TECHNOLOGY
ISBN
0377-8401
Impact factor JCR
1,882
Impact info
Volume
153
Journal number
0
From page
131
To page
140
Month
ENERO
Ranking
Participants
  • Autor: Nuria Nicodemus Martin (UPM)
  • Autor: Juan Carlos de Blas Beorlegui (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Producción Animal
  • Departamento: Producción Animal
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