Developmental, Metabolic, and Other Noninfectious Disorders

Rocio Crespo, H L Shivaprasad

Research output: Chapter in Book/Report/Conference proceedingChapter

17 Scopus citations


This chapter covers disorders induced by the environment or management conditions and diseases that are not associated with a specific body system-conditions such as cannibalism or amyloidosis. It focuses on metabolic diseases of economic importance to the modern poultry industries. Cannibalism is the most severe outcome of both feather and vent pecking. Feather pecking is a major welfare problem. It is a behavior expressed by dominant birds on subordinates. Pecking may vary from pecking without removal of feathers to plucking of the feathers. Vent pecking is a separate form of pecking that also can be observed in well-feathered birds. It generally occurs soon after birds have come into lay. Amyloidosis is a well-recognized pathological disorder in birds, characterized by deposition of proteinaceous material between cells in various tissues and organs of the body. Amyloidosis caused by AA is frequently associated with an underlying infectious or inflammatory condition.

Original languageEnglish (US)
Title of host publicationDiseases of Poultry
Subtitle of host publicationThirteenth Edition
PublisherWiley Blackwell
Number of pages38
ISBN (Electronic)9781119421481
ISBN (Print)9780470958995
StatePublished - May 1 2017


  • Amyloidosis
  • Cannibalism
  • Feather pecking
  • Metabolic diseases
  • Modern poultry industries
  • Pathological disorder
  • Vent pecking

ASJC Scopus subject areas

  • veterinary(all)


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