Navegando por Autor "BEZERRA, Isis Abel"

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Acesso aberto (Open Access)
Reemerging of natural infection by Trypanosoma evansi in horses in Arari, Marajó Island, Brazil
(Universidade Federal do Pará, 2016-12) SILVA, Josileide Araújo da; DOMICIANO, Tarcísio Oliveira; MONTÃO, Daniele Pina; SOUSA, Paulo Geovani Silva; RAMOS, Leandro Lopes; PAREDES, Laura Jamille Argolo; GONZALEZ MONTEIRO, Silvia; RIVERO, Beatriz Riet Correa; SCOFIELD, Alessandra; BEZERRA JÚNIOR, Pedro; BEZERRA, Isis Abel; CERQUEIRA, Valíria Duarte
Two outbreaks of trypanosomiasis by Trypanosoma evansi in horses in the municipality of Chaves, Marajó Island, Pará State, Brazil are reported. The first outbreak occurred in April 2011 in a farm with 147 horses; of these, 47 (31.97%) got sick, and 40 (27.21%) died. The second outbreak occurred in May 2012 and involved nine properties. Of a total of 679 horses, 209 (30.07%) got sick, and 183 (26.97%) died. The main clinical signs observed in these horses were weight loss, abdominal edema, toe dragging, and pelvic muscle atrophy. Necropsy was performed in two horses, one from each outbreak. Macroscopic alterations were not seen in the horse from the first outbreak; however, the horse from the second outbreak exhibited emaciation, pallor and icterus, as well as enlarged spleen with prominent white pulp at cut surface. Histopathology of the central nervous system of both animals revealed mild to severe, diffuse lymphoplasmacytic encephalitis, with presence of Mott cells. Immunohistochemistry for T. evansi revealed structures similar to intralesional trypomastigote forms. Between November and December of 2013, an epidemiological survey was carried out in the municipalities of Cachoeira do Arari, Santa Cruz do Arari, Salvaterra, Soure, and Chaves. Only Santa Cruz do Arari and Chaves had reported cases of the disease. Blood samples were collected from 243 horses for detection of T. evansi DNA by polymerase chain reaction (PCR) and 20 were positive.
Acesso aberto (Open Access)
Segmentation of the buffalo meat consumer market in Belém, Pará, Brazil
(Universidade Federal do Pará, 2016-06) MARQUES, Cristiane Soares Simon; OAIGEN, Ricardo Pedroso; MORAES, Carina Martins de; SANTOS, Marcos Antônio Souza dos; LOURENÇO JÚNIOR, José de Brito; BEZERRA, Isis Abel
The objective of this study was to identify different market segments for buffalo meat with target groups defined in the city of Belém, Pará, Brazil. Paired samples of beef and buffalo meat were given to 447 volunteers, and a sensory analysis of the products was conducted. After the tasting, a questionnaire was administered to obtain demographic (age, educational level, marital status) and economic (household income) data as well as information on the habits of respondents and preferences regarding buffalo meat. The factors were estimated using the principal components method and the factors with characteristic roots greater than one were extracted. To check the suitability of the factorial model, Bartlett’s sphericity test and the Kaiser-Meyer-Olkin (KMO) test were used. A factor analysis was performed, identifying five factors with common variability dimensions. The study has helped identify four distinct market segments which, combined with a targeted marketing strategy, can be used to leverage the productive chain: I - Young and interested, II - Mixed and indifferent, III - Graduates and successful, and IV - Healthy women. All had positive responses to buffalo meat; clusters I and III stood out with regard to several indicators, especially those related to the preference for buffalo meat and the predisposition to purchase and include it in meals. The sensory analysis indicated that consumers showed a greater acceptance of buffalo meat based on the characteristics of flavour, colour, succulence and tenderness. The study helps to identify market segments with distinct features that, combined with a targeted marketing strategy, can be used to leverage the supply chain.