Programa de Pós-Graduação em Ciência Animal - PPGCAN/Castanhal
URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/2335
O Programa de Pós-Graduação em Ciência Animal (PPGCAN) é um programa 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). O Programa iniciou o nível de Mestrado em 1999 junto à CAPES/MEC, tendo aprovação de sua proposta de Doutorado junto à agência em 2008, com início da primeira turma em 2009, o que certamente contribuirá à formação de massa crítica regional.Se caracteriza por apresentar um conjunto de disciplinas que repassam aos alunos um embasamento teórico e prático, capacitando os mesmos a aplicarem os conhecimentos adquiridos no avanço regional da produção animal. Direcionando as linhas de pesquisa do curso à nutrição, biotecnologia, pastagens, conservação de recursos genéticos, reprodução, sanidade animal, bovinocultura, bubalinocultura, animais silvestres, ecologia aquática e aquicultura.
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Item Acesso aberto (Open Access) Avaliação dos perigos microbiológicos em uma indústria de beneficiamento de pescados e sugestão de um sistema de gestão de qualidade(Universidade Federal do Pará, 2012-09-21) LIMA, Consuelo Lucia Sousa de; LOURENÇO, Lúcia de Fátima Henriques; http://lattes.cnpq.br/7365554949786769; FREITAS, José de Arimatéa; http://lattes.cnpq.br/2382745365421156From among products of animal origin, fish are the most susceptible to deterioration and may represent a risk to health if they are contaminated by pathogenic micro-organisms. Therefore the fish industries must take special care during ali stages of processing. This study evaluated microbiological hazards in the processing line and products in a fish industry and proposes its adaptation to the necessary prerequisites for implementation of Hazard Analysis and Critical Control Points (HACCP) system. Were carried out microbiological and physicochemical analysis of 144 samples (fillets and flitch) of frozen fish of different species collected directly in the industry, were also submitted to microbiological testing 12 ice samples, 24 water samples and 340 samples from surfaces (equipment, tools and gloves handlers). The Good Manufacturing Practices (GMP) were evaluated using a checklist applied during five surveys in the industry. Trainings were carried out and evaluated temperatures of raw materials and semi finished products. It was then proposed a HACCP plan for processing line of frozen fish fillet. Among the pathogens evaluated only coagulase positive staphylococci were detected in 2.7% of fish samples, within the limit established by Brazilian law, but above the values established by national legislation for pH and BVT were detected in 18.1% and 3.5% of the samples, respectively. The samples of ice and water were not detected coliforms at 35°C and 45°C. From samples of equipment and utensils analyzeds, 50% and 81.82% were within the recommendations established by OPAS of 1.7 log CFU/cm2 for aerobic mesophilic and coliforms at 45°C, the first and second sampling period, respectively. The gloves, the first sampling period showed counts above 4 log CFU / glove of mesophilic aerobic microorganisms in 76.67% of the samples and in the second period in only 21.67%. In the evaluation of GMP in the first two surveys the industry was classified as High Risk for having submitted the conformities percentage below 50%, and as Medium Risk in subsequent surveys, for answering 51-75% of the recommended items in the check list. With these results it was found that GMPs are not fully implemented in the industry analized, detecting several non-conformities. The development of the HACCP plan was carried out according to the following steps: formation of the team, product description, development of production flowchart, hazard analysis, identification of Critical Control Points (CCPs), establishment of critical limits and corrective actions, and monitoring, records and verification procedures. The proposed implementation of the HACCP plan is applicable and may contribute significantly to the development of fish products with higher quality and food safety.Item Acesso aberto (Open Access) Distribuição espacial de anticorpos IgG para Toxoplasma gondii em um estudo soroepidemiológico realizado em bovídeos no estado do Pará(Universidade Federal do Pará, 2014) OLIVEIRA, Jefferson Pinto de; CASSEB, Alexandre do Rosário; http://lattes.cnpq.br/6525374874057337; FREITAS, José de Arimatéa; http://lattes.cnpq.br/2382745365421156This study aims to determine the prevalence of antibodies immunoglobulin class G (IgG) specific of this disease in bovine created, by contributing to the understanding of the epidemiology of this zoonosis in the state of Pará. The study was conducted in all Para meso, they were harvested blood samples from animals in 2070, with 1750 and 320 bovine and buffalo, respectively, coming from 52 municipalities and 100 properties, a survey of the epidemiological aspects influencing the onset of the infectious agent. Sera of animals underwent the test of ELISA Kit – Enzyme-Linked Immunosorbent Assay and indirect immunofluorescence - IFA for the detection of specific IgG antibodies to T. gondii cattle and buffalo the Imunodot® company. The animals were considered positive in the IFAT test from the dilution 1:64. It was considered statistically significant difference p 0.005. The buffaloes had higher seropositivity that the bovine, as well as the IFA test was higher than the ELISA test, and Mesoregion more seropositive was the Lower Amazon. There were no significant differences in the frequency of T. gondii, in relation to sex, type of exploitation, but no significant association for age, size of property, number of animals in the property, creation cycle, and the properties that presented greater amount of cats and dogs were the ones that had higher sororreagência the anti - T. gondii.Item Acesso aberto (Open Access) Fauna microparasitária de Brachyplatystoma rousseauxii e Mugil curema desembarcados na Amazônia oriental(Universidade Federal do Pará, 2013-11-29) DIAS, Lilian de Nazaré Santos; MATOS, Edilson Rodrigues; http://lattes.cnpq.br/7895814591867510; PAIVA, Rosildo Santos; http://lattes.cnpq.br/0510818763187669; FREITAS, José de Arimatéa; http://lattes.cnpq.br/2382745365421156The gilthead bream Brachyplatystoma rousseauxii and white mullet Mugil curema are species of fish consumption and considerable commercial value found in estuarine cost of Pará The microparasites phyla Apicomplexa, Microspora and Myxozoa are organisms that can be found parasitizing vertebrates and invertebrates, including the fish, some pathogenic potential and even zoonotic and economic impact. To discover the fauna microparasites affecting fish , 62 specimens of B. rousseauxii and 58 M. curema estuarna captured on the coast of the city of Vigia de Nazare and Mosqueiro District, in Belem, Para state were examined as methods and techniques for morphological analysis (microscopy light), ultrastructural (transmission electron microscopy, TEM) and molecular biology (phylogenetic analysis). It was observed that there are three phyla (three in B. rousseauxii and two in M. curema) captured hosts in the two locations , plus the largest parasitic index was determined in specimens of both captured on the coast of the estuarine Vigia de Nazare , higher incidence of co microparasites phyla Apicomplexa and Myxozoa, beyond multiparasitism in B. rousseauxii Morphological analysis revealed the presence of Calyptospora sp. (Apicomplexa), Ellipsomyxa sp., Henneguya sp., Myxobolus sp. and Meglishcha sp. (Myxozoa) and Kabatana sp. (Microspora) in B. rousseauxii and Ellipsomyxa sp., Myxobolus sp. and Microspora phylum microparasito in M. curema. The data analysis of morphological and ultrastructural Myxospora found in B. rousseauxii and M. curema are suggestive of new species microparasites these two hosts. Phylogenetic analysis of the data did not provide results that allow the classification of Kabatana sp. (Microspora) and Henneguya sp. (Myxozoa) found parasitizing B. rousseauxii microparasites as new species in this host due to low bootstrap value, but by analyzing the distance p was possible to suggest that these are new species. Studies about microparasites in Amazonian fish are needed for the knowledge of the occurrences, characterization d new species, the pathogenic potential hosts and possible risk to the consumer.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.