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S Messier

Publications and source records attributed to S Messier.

41 records · Page 3Linked to original sources
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Isolation of Campylobacter from livers of broiler chickens with and without necrotic hepatitis lesions.

Injured and normal livers from broiler chickens sent to slaughter plants were collected for bacterial examination. A total of 223 macroscopically abnormal livers and 50 normal livers were received. Forty-seven thermophilic Campylobacter isolates were obtained from the livers with necrotic lesions; 39 isolates were identified as Campylobacter jejuni and eight as C. coli. In normal livers, six C. jejuni isolates were obtained. C. jejuni biotype 2 was the most common isolate recovered from injured livers, and C. jejuni biotype 1 was the most frequent isolate found in normal livers. On some occasions, Campylobacter spp. could be isolated from both the liver parenchyma and bile of the same bird. Results indicated that different species and biotypes of Campylobacter can be found in the livers of broiler chickens with and without lesions of necrotic hepatitis.

Animals↗
PubMedDate not supplied

Focal dermatitis and cellulitis in broiler chickens: bacteriological and pathological findings.

Involvement of aerobic bacteria, especially Escherichia coli, in lesions of cellulitis in broiler chickens was investigated. Samples of subcutaneous caseous material for bacteriological examination were collected aseptically at the slaughterhouse from 109 broilers with lesions. Skin tissue was taken from five of these birds for histopathological examination. In 96 of the 109 (88.1%) broilers sampled, E. coli was isolated from the lesion, and in 60 of these birds it was the only bacterial species found. In 33 broilers, Streptococcus dysgalactiae was found along with E. coli. Although serotype O78 was isolated the most frequently, numerous other serotypes were found; no correlation could be established between the size of the lesions and the serotype isolated. The microscopic lesions were characterized by thickening of the dermis with a granulomatous inflammatory reaction. This study confirms the frequent association of E. coli with cellulitis lesions in broiler chickens and reports the frequent isolation of S. dysgalactiae from the lesion.

Animals↗