Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Rev. Bras. Ciênc. Avic. (3) Autor Ito,NMK (3) Miyaji,CI (2) Okabayashi,S (2) Scanavini Neto,H (2) Bolis,DA (1) Claure,RA (1) Correa,ARA (1) Corrêa,ARA (1) Eleutério,GC (1) Graça,EO (1) Lima,E de A (1) Lima,EA (1) Paganini,FJ (1) Simon,VA (1) Zuanaze,MA (1) Zuanaze,MF (1) Mais... Palavra-chave Histopathology (2) Broilers (1) Challenge (1) Enteritis (1) GM11 (1) Gumboro (1) Gut bacteriology (1) Hepatitis (1) IBD (1) Pathogenicity (1) Protection (1) Serology (1) Vaccine (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2004 (2) 2003 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Infectious bursal disease virus: case report and experimental studies in vaccinated and unvaccinated SPF chickens and commercial broiler chicks Rev. Bras. Ciênc. Avic. Scanavini Neto,H; Ito,NMK; Miyaji,CI; Lima,E de A; Okabayashi,S; Corrêa,ARA; Eleutério,GC; Zuanaze,MA. IBDV Gm 11 (Simbios eleven-molecular group) has been detected since 1997 in many farms of commercial broilers and layers causing high mortality (2 to 15%) and severe macro and microscopic damage in cloacal bursae, spleen, thymus, kidney and liver. Five serial passages of 2050/97-Gm 11 IBDV sample by CAM route in SPF chicken's embryonated eggs did not elicit increased embryo mortality. High mortality (100%) of 21 day-old SPF leghorn chickens and severe bursal and splenic lesions were seen from 24 up to 48 hours after eye-drop inoculation of 2050/97 strain (50 mL of 10-2 dilution of 10% bursae homogenate). Mortality was not detected when vaccinated SPF and broiler chickens were inoculated. One dead bird was found among ten challenged unvaccinated broilers.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Challenge; Histopathology; IBD; Pathogenicity; Serology. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000100006 Entero-hepatic pathobiology: histopathology and semi-quantitative bacteriology of the duodenum Rev. Bras. Ciênc. Avic. Ito,NMK; Miyaji,CI; Lima,EA; Okabayashi,S; Claure,RA; Graça,EO. Duodenum swabs were harvested from 80 broilers in 15 flocks of 8 broiler farms and were submitted to bacteriological evaluation. Five broiler breeders were sampled to obtain comparative data. Macro and microscopic lesions in the gut and the liver were evaluated in all birds submitted to swab harvesting and also broilers of two slaughter plants. Semiquantitative bacterial examination in duodenum swabs demonstrated higher microorganism growth in blood agar than in MacConkey medium. Staphylococcus sp, Enterococcus sp and Escherichia coli were found in some broiler flocks. An increased cellularity of the muscular mucosae of duodenum villi and/or the presence of some gametocytes or schizonts of coccidia were found in the lesioned gut in addition to high... Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Enteritis; Gut bacteriology; Hepatitis. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000100005 Gumboro disease: evaluation of serological and anatomopathological responses in vaccinated broiler chickens challenged with very virulent virus strain Rev. Bras. Ciênc. Avic. Bolis,DA; Paganini,FJ; Simon,VA; Zuanaze,MF; Scanavini Neto,H; Correa,ARA; Ito,NMK. This paper describes the effects of a strong type of vaccine - Moulthrop G603 º and an intermediate-plus type of vaccine - 228E º in meat-type chickens challenged with a very virulent strain of infectious bursal disease virus (vvIBDV). Blood samples and bursa of Fabricius were taken weekly up to 42 days of age. It was concluded that bursa of Fabricius weight, bursa weight:body weight ratio, body weight and antibody titer evaluated before and after challenge with vvIBDV were not enough to consistently and conclusively differentiate or estimate the protection given by vaccination. Quantitative evaluation of injury intensity and the number of altered lymphoid follicles revealed that Moulthrop G603 caused moderate microscopic lesions in one out of seven birds... Tipo: Info:eu-repo/semantics/article Palavras-chave: GM11; Gumboro; Histopathology; Protection; Vaccine. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000200008 Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco