Pathology of Swollen Head Syndrome in Broiler Chickens

• ISHII Eiko

  Faculty of Agriculture, Iwate University

• GORYO Masanobu

  Faculty of Agriculture, Iwate University

• KIKUCHI Shizuko

  Faculty of Agriculture, Iwate University

• OKADA Kosuke

  Faculty of Agriculture, Iwate University

Bibliographic Information

Other Title

• ブロイラー鶏頭部腫脹症候群の病変
• ブロイラー ニワトリ トウブ シュチョウ ショウコウグン ノ ビョウヘン

Abstract

Broiler cases of swollen head syndrome (SHS) occurring at three different farms and showing respiratory symptom, swollen heads and severe depression were studied pathologically. Atnecropsy affected chickens showed the swollen head and eyelids due to facial cellulitis with caseous exudate in the air space of the cranial bones but no exudate in the lumen of the infraorbital sinus and the nasal cavity. Microscopy revealed chronic fibrinopurulent inflammation with granulomas in the air space of the cranial bones, middle ears and facial skin. Conjunctivitis and tracheitis with infiltration of lymphocytes and plasma cells with germinal centers were observed. The E. coli isolate from the wattle of an affected chicken was inoculated intramuscularly (10⁷ CFU) into 2-weeks-old SPF chicks, and acutefibrinopurulent pericarditis and serositis, but no SHS lesions were produced.

Journal

• Journal of the Japan Veterinary Medical Association

  Journal of the Japan Veterinary Medical Association 50 (4), 214-219, 1997

  Japan Veterinary Medical Association

Keywords

• broiler chicken
• colibacillosis
• granuloma
• swollen head synndrome

Details

• CRID: 1390282679685587072
• NII Article ID: 10018950890
• NII Book ID: AN00191857
• DOI: 10.12935/jvma1951.50.214
• ISSN: 21860211
• ISSN: 04466454
• NDL BIB ID: 4194779
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010560257
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4194779
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed