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Rapid growth predisposes broilers to necrotic enteritis.

E Dierick1, O P Hirvonen2, F Haesebrouck1

  • 1Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University , Merelbeke , Belgium.

Avian Pathology : Journal of the W.V.P.A
|May 3, 2019
PubMed
Summary
This summary is machine-generated.

Higher body weight gain in broiler chickens increases their susceptibility to necrotic enteritis. Rapid growth can negatively impact broiler health and performance, highlighting a need to balance growth with intestinal well-being.

Keywords:
Necrotic enteritisbody weight gainbroilergrowth ratepredisposing factor

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Area of Science:

  • Animal Science
  • Avian Health
  • Poultry Production

Background:

  • Genetic selection has significantly improved broiler body weight gain (BWG) and feed efficiency over 50 years.
  • Increased BWG, while economically beneficial, is linked to higher risks of metabolic and skeletal disorders in broilers.

Purpose of the Study:

  • To investigate if elevated BWG predisposes broiler chickens to necrotic enteritis.
  • To understand the relationship between broiler body weight and the severity of necrotic enteritis.

Main Methods:

  • A challenge model was used with 300 broilers exposed to *Clostridium perfringens*.
  • Broilers were monitored for body weight, body weight gain, and necrotic enteritis lesion severity post-challenge.

Main Results:

  • Broilers with higher pre-challenge body weight and BWG exhibited more severe necrotic enteritis lesions.
  • Significant reductions in BWG were observed in birds with mild to severe lesions, impacting welfare and performance.
  • A clear correlation was established between BWG and the development of necrotic enteritis.

Conclusions:

  • Higher body weight gain is a predisposing factor for necrotic enteritis in broilers.
  • Maintaining intestinal health may require managing BWG to prevent pathology.
  • Further research is needed to determine optimal growth parameters for broiler intestinal health.