Rectal stenosis in pigs associated with Salmonella Typhimurium and porcine circovirus type 2 (PCV2) infection

Pesquisa Veterinária Brasileira

Tatiane Terumi Negrão Watanabe²  Priscila Zlotowski¹  Luiz Gustavo Schneider De Oliveira²  Verônica Machado Rolim²  Marcos José Pereira Gomes¹  Gustavo Snel¹  David Driemeier² 

[1] ,Universidade Federal do Rio Grande do Sul Faculdade de Veterinária Departamento de Patologia Clínica VeterináriaPorto Alegre RS ,Brazil

关键词: Rectal stenosis;    pigs;    Salmonella;    PCV2;    Estenose retal;    suínos;    Salmonella;    PCV2;   

DOI  :  10.1590/S0100-736X2011000600009

来源: SciELO

【 摘 要 】

Rectal stricture is an acquired annular fibrous constriction of the rectum that results from a variety of chronic necrotizing enteric diseases. In pigs, it is in most cases a sequel of Salmonella infection. Porcine circovirus type 2 (PCV2) is a known pathogen causing immunosuppression in pigs worldwide. PCV2 infected pigs may be predisposed to salmonellosis. In this report, rectal stenosis was observed in 160 pigs from a herd that experienced an outbreak of enteric salmonellosis over a 4-month period. Distension of the abdominal wall and diarrhea were the main clinical signs observed. Five animals were analyzed showing annular cicatrization of the rectal wall 5.0-7.0 cm anterior to the anorectal junction and Salmonella-positive immunostaining in the large intestine. Salmonella Typhimurium was isolated from fragments of the large intestine. Porcine circovirus type 2 antigen was observed in the mesenteric lymph-node in 4 pigs and in the large intestine in 3 pigs.

【 授权许可】

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