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«VETERINARSKI ARHIV 74 (3), 217-224, 2004 A pathologic study on experimental Erysipelothrix rhusiopathiae cellulitis in broiler chickens Amin ...»

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SAŽETAK Celulitis peradi ozbiljan je problem u proizvodnji tovnih piliæa. Iako su razlièiti agensi izdvojeni iz celulitiènih lezija, sposobnost Erysipelothrix rhusiopathiae u izazivanju celulitisa nije poznata.

Stoga je cilj ovog istraživanja bio istražiti ulogu ove bakterije u nastanku celulitisa peradi. Korištene su dvije pokusne skupine, od kojih je svaka bila sastavljena od nasumce odabranih dvadeset komercijalno uzgajanih, zdravih, petnaestodnevnih tovnih piliæa, mješovita spolnog sastava i istog soja. Na desnoj dorzolateralnoj strani tijela peralelno s kralježnicom, iglom je naèinjena ogrebotina duga 2 cm. Piliæima jedne skupine u tu je ogrebotinu inokuliran 1 ml suspenzije s 102 bakterijskih stanica uzroènika izdvojenog iz purana s vrbancem. Piliæi druge skupine primili su 1 ml sterilne puferirane otopine fosfatne soli kao negativnu kontrolu. Piliæi su bili žrtvovani 48 sati nakon inokulacije, a potom su naèinjena patološka i bakteriološka istraživanja. U 65% piliæa iz prve skupine uoèeno je oteèenje kože s nekrozama, infiltracija heterofila i fibrinozni eksudat, što je osebujno za celulitis.

Preostalih 35% piliæa je uginulo unutar 24 sata nakon inokulacije sa znakovima blagog celulitisa.

Erysipelothrix rhusiopathiae bio je ustanovljen u koži i nekim unutarnjim organima piliæa iz prve skupine. Piliæi iz druge skupine bili su zdravi. Rezultati ovog istraživanja pokazuju da se E.

rhusiopathiae može smatrati uzroènikom celulitisa peradi i predstavlja opasnost za javno zdravstvo.

Kljuène rijeèi: Erysipelothrix rhusiopathiae, celulitis, tovni piliæi, vrbanac

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