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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
71

Étude du contrôle de l'expression des systèmes de sécrétion de type III, généré par l'inactivation du gène yfgL codant une lipoprotéine de la membrane externe, chez Salmonella Enteritidis

Fardini, Yann Velge, Philippe January 2008 (has links) (PDF)
Thèse de doctorat : Sciences de la vie et de la santé : Tours : 2008. / Titre provenant de l'écran-titre.
72

Risk factors influencing the growth and survival of Salmonella on poultry products

Dominguez Risco, Silvia A., January 2009 (has links)
Thesis (Ph. D.)--Rutgers University, 2009. / "Graduate Program in Food Science." Includes bibliographical references (p. 115-125).
73

The effect of bile salts on expression from the pil and rci promoters associated with the type IVB pilus-encoding operon of salmonella enterica serovar typhi /

Cheung, Fei Wai. January 2003 (has links)
Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003. / Includes bibliographical references (leaves 98-116). Also available in electronic version. Access restricted to campus users.
74

Validation of cooking methods using shell eggs inoculated with Salmonella serotypes Enteritidis and Heidelberg

Davis, Alexis Larrisa, January 2007 (has links) (PDF)
Thesis (M.S.)--Auburn University, 2007. / Abstract. Vita. Includes bibliographic references (ℓ. 44-49)
75

Construction of Salmonella vaccines /

Hone, David. January 1988 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Dept. of Microbiology and Immunology, 1988. / Includes bibliographical references (leaves 126-171).
76

Transmission and epidemiology of Salmonella enterica in commercial dairy farms in Washington State

Adhikari, Bijay, January 2008 (has links) (PDF)
Thesis (Ph. D. veterinary science)--Washington State University, August 2008. / Includes bibliographical references.
77

Regulation of heme biosynthesis targets the key enzyme HemA by a mechanism of protein stabilization in Salmonella typhimurium

Wang, Liying. January 1999 (has links)
Thesis (Ph. D.)--West Virginia University, 1999. / Title from document title page. Document formatted into pages; contains xiii, 145 p. : ill. (some col.) Includes abstract. Includes bibliographical references.
78

Comparative immunologic studies on cell structures isolated from Salmonella typhosa

Carey, Warren Francis, January 1958 (has links)
Thesis--Catholic University of America. / Includes bibliographical references (p. 21-23).
79

Ocorrência de Salmonella spp. em carcaças e vísceras de rãs (Rana catesbeiana - Rã de Touro): avaliação do processo de abate

Alfani, Rodrigo [UNESP] 17 December 2007 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:27:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-12-17Bitstream added on 2014-06-13T20:35:26Z : No. of bitstreams: 1 alfani_r_me_botfmvz.pdf: 1580787 bytes, checksum: 9d1168d0864b69db5108b386caa718f8 (MD5) / Universidade Estadual Paulista (UNESP) / O trabalho teve como objetivo avaliar a ocorrência de Salmonella spp. nos vários pontos do fluxograma do abate de rãs (Rana catesbeiana – Rã Touro), desde os currais de espera até o produto final, bem como nas vísceras não comestíveis e no fígado. Das 120 amostras analisadas ao longo do abate (15 amostras por ponto / 8 pontos de colheita), 39 (32,5%) mostraram-se positivas, independentemente do ponto de colheita. Em relação a estes, obtiveram-se os seguintes resultados: 26,7% de positividade na água dos currais de espera, 13,3% após a insensibilização e após a sangria, 26,7% após a retirada da pele, 46,7% após a evisceração, 40% no produto final não embalado e nas vísceras, e 53,3% para o fígado. Conclui-se que a carne de rã, produto final, obtida nas condições estudadas, pode representar um sério risco à saúde pública, como veículo de Salmonella spp. A contaminação detectada nos vários pontos de colheita se dá de forma gradativa e contínua ao decorrer do abate. Das etapas estudadas, a evisceração é a mais crítica em relação à contaminação por Salmonella spp. É necessária a implementação de pontos críticos de controle no processo de abate e, consequentemente, ações corretivas para minimizar tais contaminações. / The study aimed to assess the occurrence of Salmonella spp. in several parts of the flowchart of the slaughter of frogs (Rana catesbeiana - Bullfrog), since the waiting pens until the final product, as well as in viscera not edible and in the liver. Of the 120 samples analyzed over the slaughter (15 samples per point / 8 points of collection), 39 (32,5%) have proved positive, regardless of the point of harvest. For these, obtained the following results: 26,7% of positivity in the water of waiting pens, 13,3% after stunning and after the bleeding, 26,7% after the withdrawal of skin, 46,7% after evisceration, 40% in the final product not packed and for the viscera, and 53,3% for the liver. It follows that the meat of frog, the final product, obtained under the conditions studied, may represent a serious risk to public health, as a vehicle of Salmonella spp. The contamination detected in the various points of collection occurs in a gradual and continuous course of the slaughter. In stages studied, the evisceration is the most critical point of the contamination by Salmonella spp. It’s necessary establish critical points of control in the process of slaughter and, therefore, correct actions to minimize such contamination.
80

Ocorrência de anticorpos contra Salmonella e Mycoplasma em aves de criatórios de fundo de quintal próximos a explorações tecnificadas do Estado de São Paulo

Buchala, Fernando Gomes [UNESP] 06 June 2003 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:27:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2003-06-06Bitstream added on 2014-06-13T20:16:21Z : No. of bitstreams: 1 buchala_fg_me_jabo.pdf: 194310 bytes, checksum: c5ffe9e9aa8cde854e11b73d2a8b4c74 (MD5) / Esta pesquisa objetivou demonstrar a ocorrência de reações sorológicas para Salmonella sp, Mycoplasma gallisepticum e Mycoplasma synoviae nas populações de aves de explorações não tecnificadas e com finalidade de subsistência, em propriedades rurais localizadas em áreas geográficas próximas a granjas de reprodutoras (matrizeiros) do Estado de São Paulo. Foram selecionadas três granjas de matrizes, oficialmente reconhecidas como sendo livres de S. Pullorum (SP), S. Gallinarum (SG), S. Enteritidis (SE), S. Typhimurium (ST), M. gallisepticum (MG) e M. synoviae (MS), e quinze criações vizinhas, onde a população de aves existente foi amostrada, com colheita e processamento de 406 soros sanguíneos. O diagnóstico foi realizado pela técnica de soroaglutinação rápida em placa. As frequências encontradas foram 73%, 73% e 100% de propriedades com aves sororreagentes aos antígenos testados de SP (teste da pulorose), MG e MS, respectivamente. As ocorrências observadas de aves sororreagentes foram de 16,5%, 30,3% e 40,6% para os antígenos de SP, MG e MS, respectivamente. Os dados obtidos indicam que os agentes estudados estão amplamente difundidos nas criações informais de aves de fundo de quintal, colocando em risco constante os criatórios de exploração industrial, os quais necessitam adotar e manter boas práticas de biosseguridade para preservar a integridade sanitária dos plantéis. / This investigation aimed to demonstrate the occurrence of serological reactions to Salmonella spp., Mycoplasma gallisepticum and Mycoplasma synoviae in backyard domestic poultry for own consume located next to parent flocks in the State of São Paulo. Three parent flocks officially recognised as free from S. Pullorum (SP), S. Gallinarum (SG), S. Enteritidis (SE), S. Typhimurium (ST), M. gallisepticum (MG) and M. synoviae (MS) and 15 neighbour backyard flocks were selected. A sample of 406 chickens from the backyard flocks was bled, and the diagnostic was carried out by the plate agglutination test. The frequencies found were 73%, 73% and 100% of flocks with chickens reacting to the antigens of SP, MG and MS, respectively. The frequencies of reacting chickens were 16.5%, 30.3% and 40.6% for the antigens of SP, MG and MS, respectively. The results show that the aetiological agents studied are widespread among the backyard flocks, posing a constant risk for the commercial poultry flocks, that need to adopt and keep good biosecurity practices to preserve their sanitary status.

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