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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.
1

Estratégias de manejo sanitário nos núcleos de conservação in situ de bovinos curraleiro pé-duro e pantaneiro / Sanitary management strategies in curraleiro pé-duro and pantaneiro cattle breeds in situ conservation nucleus

Freitas, Thais Miranda Silva 28 February 2014 (has links)
Submitted by Cássia Santos (cassia.bcufg@gmail.com) on 2015-10-26T11:53:12Z No. of bitstreams: 2 Dissertação - Thais Miranda Silva Freitas - 2014.pdf: 2006843 bytes, checksum: 468444878dd84d31f2dc4acbb6c7add7 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-10-26T13:26:19Z (GMT) No. of bitstreams: 2 Dissertação - Thais Miranda Silva Freitas - 2014.pdf: 2006843 bytes, checksum: 468444878dd84d31f2dc4acbb6c7add7 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2015-10-26T13:26:19Z (GMT). No. of bitstreams: 2 Dissertação - Thais Miranda Silva Freitas - 2014.pdf: 2006843 bytes, checksum: 468444878dd84d31f2dc4acbb6c7add7 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2014-02-28 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / Sanitary planning in cattle industry improves reproductive rates and increases economic profitability; however, the proposal of sanitary strategies depends on the prior knowledge about the herds and the factors that favors’ the occurrence of diseases. The aim of this study was to evaluate the occurrence, both individually and in the herd, of Brucella spp., Leptospira sp., Neospora caninum, bovine leucosis virus (BLV), bovine herpesvirus type 1 (BoHV-1), and bovine diarrhea virus (BVDV) in the Brazilian cattle breeds Curraleiro Pé-Duro (CPD) and Pantaneiro (PAN), as well as the associated risk factors. It also aimed at determining control strategies. We observed that brucellosis was under control in all herds, however we detected variable frequencies of serologically positive animals against Leptospira (CPD: 4,08% - 94,4% and PAN: 44,74% - 93,33 %), Neospora (CPD: 5,56% - 100% and PAN: 12,00% - 16,84 %), BLV (CPD:0,00% - 88,88% and PAN: 6,67% - 33,33 %), BoHV-1 (CPD: 39,24% - 95% and PAN: 0,00% - 59,00%) and BVDV (CPD: 6,67% - 78,5% and PAN: 4,08% - 78,57%). The most important risk factors associated to Curraleiro Pé-Duro infections were as follows: animals slaughter on the property, co-infections, free access to flooded areas and herd size. The major factors associated with seropositivity in Pantaneiro (PAN) herds were age above 24 months and artificial insemination, while veterinary assistance was a protection factor. The recommended measurements include prevention of positive animals introduction, vaccination, animal disposal, supply of colostrum from seronegative cows and sick animals segregation. This study assists professionals to evaluate the necessity of employing sanitary measurements. / O planejamento sanitário na bovinocultura favorece a melhoria nos índices reprodutivos e a rentabilidade da pecuária, entretanto, propor estratégias sanitárias depende do conhecimento prévio dos rebanhos e dos fatores que favorecem a ocorrência de doenças. O objetivo deste estudo foi avaliar a ocorrência individual e por rebanho das infecções por Brucella, Leptospira, Neospora caninum, vírus da leucose bovina (BLV), herpes vírus bovino tipo 1 (BoHV-1) e vírus da diarreia viral bovina (BVDV) em bovinos das raças locais brasileiras Curraleiro Pé-Duro (CPD) e Pantaneiro (PAN), como também fatores de risco associados e determinar estratégias de controle. A brucelose estava controlada nos rebanhos avaliados, enquanto foram detectadas frequências variáveis de animais sorologicamente positivos contra Leptospira (CPD: 4,08% a 94,4% e PAN: 44,74% a 93,33%), Neospora (CPD: 5,56% a 100% e PAN: 12,00% a 16,84%), BLV (CPD:0,00% a 88,88% e PAN: 6,67% a 33,33%), BoHV-1 (CPD: 39,24% a 95% e PAN: 0,00% a 59,00%) e BVDV (CPD: 6,67% a 78,5% e PAN: 4,08% a 78,57%). As variáveis consideradas fatores de risco para as diferentes infecções em CPD foram, principalmente, abate na propriedade, co-infecções, acesso a área alagada e tamanho do rebanho. Para PAN as variáveis foram idade acima de 24 meses e a reprodução por inseminação artificial, sendo a assistência veterinária fator de proteção. As medidas propostas incluem prevenção da introdução de animais positivos, vacinação, descarte de animais, fornecimento de colostro de fêmeas soronegativas e manejo segregado. Este estudo auxilia os profissionais a julgar a necessidade de aplicação de medidas de manejo sanitário.

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