Dissertações em Ciência Animal (Mestrado) - PPGCAN/Castanhal
URI Permanente para esta coleçãohttps://repositorio.ufpa.br/handle/2011/2337
O Mestrado em Ciência Animal teve início em 1999 junto à CAPES/MEC e funciona no Programa de Pós-Graduação em Ciência Animal (PPGCAN) do Campus Universitário de Castanhal (CCAST) da Universidade Federal do Pará (UFPA), Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) e Universidade Federal Rural da Amazônia (UFRA).
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Item Acesso aberto (Open Access) "Inquerito sorológico de Neospora caninum em rebanhos bovinos leiteiros no município de Parauapebas, mesorregião sudeste do estado do Pará"(Universidade Federal do Pará, 2009-06-29) SILVA, Clóvis Laurindo da; FREITAS, José de Arimatéa; http://lattes.cnpq.br/2382745365421156Neospora caninum is a world-wide coccidian protozoa which causes considerable damages at animals breeding. To survey the frequence of anti-N. caninum antibodies in bovine milkmen in Parauapebas county, Southeast Mesoregion of Pará State, Northern Brazil, 465 serum samples coming from 45 farmers were submitted to indirect immunofluorescence reaction (cutting point 1:100); 62 (13,33%) samples have demonstrated the presence of anti-N. caninum antibodies, with the following distribution: 27 (43,55%) in 1:100 dilution; 14 (22,58%) in 1:200 dilution; 16 (25,80%) in 1:400; and 5 (8,07%) in 1:800 dilution. None serum had tittle in over 1:800 dilution. In a high percentage there was only an animal with anti-N. caninum antibodies; the major frequence was observed between females, but was’nt observed significative difference between animal sexes; animals with equal or over five years old presented major percentage of positive serum proporcionaly to number of positives serum of younger animals. The results have demonstrated that bovine milkmen of Parauapebas county had a considerable frequence of anti-N. caninum antibodies. Sanitary surveillance measures are necessary to prevent the entrance of N. caninum and to control the difusion of this protozoa at the regional bovine milkmen.Item Acesso aberto (Open Access) Mastite bovina em rebanhos leiteiros no município de Parauapebas, mesorregião sudeste do estado do Pará(Universidade Federal do Pará, 2008-03-11) BARROS, Bruno de Cássio Veloso de; FREITAS, José de Arimatéa; http://lattes.cnpq.br/2382745365421156The mastite in its subclinica form is the responsible one for the biggest losses of milk production representing raised economic damages. With the objective to study the etiology of the bovine subclinica mastite in the city of Parauapebas-Pará, they had been submitted to California Mastitis test. - CMT 174 (8.4%) cows in its majority crossbred, pparently healthful of 15 located milk properties in the related city, situated in the Southeastern Mesorregião of the state of Pará. ++ were observed that 84 (48.33%) animal ones had presented resulted of +, +++ to the CMT. The milk of each ceiling that had reacted to the CMT in a total of 178 samples was analyzed bacteriologically aiming at the isolation and the identification of the microorganisms, had been analyzed the macrocospic, microscopical characteristics and biochemists of the isolated cultures. Of the total of samples 208 had been isolated cepas of microbianos agents in pure cultures or in associations being all proceeding ones from mamitico milk, of which 141 (67.79%) cepas was positive coconuts Gram S.aureus (29%) and S.epidermidis (19.14%) and 67 (32.21%) were enterobactérias. Among the enterobacterias they had been distinguished Pseudomonas sp.com 12 (17.91%) cepas esisoladas, Citrobacter sp. with 12 (17.95%) cepas and Shigella sp. with 10 (14.92%), Others 15 cepas of enterobacterias that had not been identified. The isolation of the agents presented significant variation, therefore the comments had been considered how much to the handling of it milks of the studied animals, the sanitary hygienical conditions of the attainment of milk through the application of a questionnaire aiming at the comment of the following 0 variable: creation system, handling adopted in the property, hygiene and level of exposition, infecciosidade of the isolated agents what it reaffirms the complexity of the infection in the area of study and its multifactorial aspect, needing the investment on the part the agencies fiscalizadores of better you practise of hygiene and attainment in the activity of milk exploration.Item Acesso aberto (Open Access) Pesquisa de Campylobacter spp. em granjas e abatedouro avícolas na mesorregião metropolitana de Belém - PA(Universidade Federal do Pará, 2007-08-22) CHAVES, Sílvio Orlan de Castro; FREITAS, José de Arimatéa; http://lattes.cnpq.br/2382745365421156The human infections of food origin caused by Campylobacter spp. result in high economic losses and these infections are correlated to poultry flock and slaughter, important steps in Campylobacter spp. dissemination. Based on the importance of this microorganism in public health and in the literature data that show the high poultry contamination by Campylobacter spp., we realize a study involving the flock and the poultry slaughter in Amazon region for adoption of prophylactic and control measures. The objective of this work was to investigate the occurrence of Campylobacter spp. in poultry flock and slaughterhouse in Amazon region and to isolate and to identify the Campylobacter species and to identify the sources of infection in the flock and the critical points in the slaughterhouse. We collected 120 samples in three flocks: 30 cloacal swab samples, 30 poultry litter samples, 30 feed samples and 30 water samples. In the slaughterhouse, 126 samples were collected: 36 water samples from 12 different points in the abattoir, 30 neck/ chest skin samples, 30 liver samples and 30 gizzard samples. The samples were collected from January to May 2007. The samples were processed in the Bacteriology and Micology Laboratory in Evandro Chagas Institute – Health Surveilance Office – Brazil’s Health Ministery. Campylobacter spp. was isolated in 33,3% (40/120) flock samples. There was no significant difference (p>0,05) between positive isolates in the three flocks. Campylobacter spp. was isolated in 96,6% (29/30) cloacal swab samples, 33,33% (10/30) poultry litter samples and 3,3% (1/30) water samples. There were no positive samples in the feed. Campylobacter jejuni was identified by biochemistry reactions in 82,5% (33/40) of isolates from flocks. In the slaughterhouse, all isolates were identified as C. jejuni. This microorganism was isolated in 8,73% (11/126) of slaughterhouse samples. C. jejuni was isolated in 27,8% (10/36) water samples and in 3,3% (1/30) gizzard samples. Campylobacter spp. was not isolated in liver samples neather in neck/ chest skin samples. There was significant difference (p<0,0001) between positive, negative isolates and among all kinds of samples collected in the flocks and at the slaughterhouse. The infections sources identified in the flocks were the cloacal swab, the poultry litter and the water. In the slaughterhouse, the critical points identified were the water and the gizzard. C. jejuni was identified in high levels in the flocks and in all isolates from the slaughterhouse.