Experimental reproduction of proventriculitis using homogenates of proventricular tissue

Poultry Science
G R BayyariJ N Beasley

Abstract

Proventriculitis is a problem affecting the processing of broiler carcasses, particularly those processed at 4 to 5 wk of age. The proventriculus and the gastric isthmus connecting the proventriculus to the gizzard are enlarged and swollen and often rupture during processing, causing carcass contamination. This study suggested that a filterable agent found in homogenated proventriculi can cause lesions similar to those seen in field cases. Proventriculitis was produced independently of an effect on growth, and only unfiltered homogenate caused stunting. Field birds with severe proventriculitis were shown to have increased body weights compared with birds without proventriculitis or with milder lesions. Intestinal weakness was not associated with proventriculitis and field birds with the most severe proventriculitis had stronger intestines. Although infectious proventriculitis has generally been reported as one of the lesions associated with stunting syndrome, these data suggest that it may have an independent etiology.

Citations

Feb 13, 2013·Avian Diseases·Rosemary A MarusakJames S Guy
Oct 18, 2003·Avian Diseases·Mary J Pantin-Jackwood, Thomas P Brown
Aug 24, 2013·Veterinary Medicine International·Muhammad Fiaz QamarNusrat Jahan
May 5, 2007·Avian Pathology : Journal of the W.V.P.A·T V DormitorioF J Hoerr
Jul 12, 2016·Avian Pathology : Journal of the W.V.P.A·Llorenç Grau-RomaNatàlia Majó
Jun 21, 2018·Transboundary and Emerging Diseases·Gen LiZiqiang Cheng
Jul 31, 2004·Avian Diseases·M J Pantin-JackwoodG R Huff
Mar 27, 2021·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Philipe A LeãoRoselene Ecco

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