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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Navegando Dissertações em Ciência Animal (Mestrado) - PPGCAN/Castanhal por Orientadores "MARQUES, José Ribamar Felipe"
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Item Acesso aberto (Open Access) Características e índices produtivos de muçuãs (Kinosternon scorpioides) em cativeiro na ilha de Marajó, Amazônia, Brasil(Universidade Federal do Pará, 2016-02-29) COSTA, Juliane da Silva; MARQUES, José Ribamar Felipe; http://lattes.cnpq.br/0104908318773676Historically, chelonians have played an important role as a natural resource as human food in the region, notably Kinosternon scorpioides specie or scorpion mud turtle, locally known as muçuã which has been suffering a gradual imbalance caused by inordinate catch. We aimed to evaluate the indexes of productive characteristics, at different stages of breeding, and the reproductive characteristics of copulation, ovarian activity and hatching of muçuãs in captivity, aiming better activity through an adequate zootechnical handling. The study was done between 2007 and 2015, when we analyzed 84 copulations, 742 ovarian activity and 1,979 births for reproductive evaluations, 1,835 animals in captivity, 921 animals for reproduction, and 3,614, among males and females for reproductive evaluations grown in captivity at Criatório Científico of Embrapa Amazônia Oriental, Marajó Island -PA. In the reproductive characteristic analyses the results showed that the reproductive period is seasonal, concentrating couplings during the rainy season, when the average coupling activity consisted of 00:23:00 h, with proportion male: female of 2,38 + 1,67. The egg formation process took 122,98 + 45,38 days. The egg laying distribution presented a climax tendency between the end of June and early August. Nidification average duration was 02:57:00 h. The egg viability found was 20%. The correlation results between the biometric, weight, and number of eggs characteristics were positive. The egg biometrical results were 34,5 mm long, and 18 mm wide, with average weight of 7,90 g. The average duration of incubation, in days, was 129.31 + 19.57. Births concentrated between September and December. The correlations of biometric characteristics with the hatchlings weight were positive between the variables (P≤0,0001). For the productive characteristics the weights were obtained for all zootechnical categories where the hatchlings in the nesting area, with approximately 12 months of age, weighed 199.20 + 45,36 g and the adult above 36 months, had an average weight of 503.63 + 73.21 g. The correlations between weight and body measurements were significant As (P≤00001) for all categories. The results of influence of morphometric measurements over weight for all categories were significant (P≤0.0005). For weight and body measurement analyses under the influence of the season of the year we observed that the variables were significant (P≤00005), except for reproduction. For reproduction, weight and body measurements were evaluated considering the influence of sex, when it was observed that females had more than males, but males were longer than females. The characteristics of coupling, incubation period, and hatching permit to delineate a reproductive handling for raisin the specie in captivity under the conditions of Marajó Island. Research directed toward biology, nutrition, and handling of muçuãs must be encouraged to increase production ex situ, providing greater subsidies for the establishment of systems of production that meet commercial demand by promoting conservation and increase of variability of the specie.Item Acesso aberto (Open Access) Caracterização de polimorfismos nos genes DGAT1 E GH em búfalas (Bubalus bubalis)(Universidade Federal do Pará, 2014-03-11) SILVA, Caio Santos; MARQUES, José Ribamar Felipe; http://lattes.cnpq.br/0104908318773676The Buffaloes are domestic animals belonging to Bubalus genus, Bovidae family and Artiodactyla order. Provide meat, milk and workforce. Are quite adapted to the climatic conditions of the state of Pará, producing well in those conditions. However, producers still need tested animals for production characteristics. There were used the technique of SSCP (single-strand conformation polymorphism) and SNP markers (single nucleotideo polymorphism), in order to characterize the 83 buffaloes from murrah and Mediterranean breeds. For the DGAT1, occured allelic frequency of 0.741 for the allele A, 0.253 for the allele B and 0.01 for the allele C. The genotypic frequencies were 0.54 for the AA genotype, 0.39 for the AB genotype, 0.06 for the BB genotype and 0.01 for the AC genotype. For the GH gene was found only one genotype. The DGAT1 gene showed considerable genetic variation and detects the presence of SNPs.Item Acesso aberto (Open Access) Caracterização genética de avestruzes (Struthio camelus) usando marcadores RAPD(Universidade Federal do Pará, 2007-04-02) FERREIRA, Silvaney Fonseca; MARQUES, José Ribamar Felipe; http://lattes.cnpq.br/0104908318773676The objective of this work was to evaluate the genetic variability of ostrich populations (Struthio camelus) through RAPD markers (Random Amplified Polymorphic DNA). 121 samples of individuals were used from Pará, Maranhão, Tocantins and Minas Gerais States. The genomic DNA was extracted from total blood. Fifteen primers were selected among the 60. The products of the PCR were visualized in agarose gel 1.5% and, a binary matrix was generated considering the presence (1) of a amplified fragment and its absence (0). The ideal number of polymorphic bands was estimated through the bootstrap analysis using the GQMOL software. The genetic similarity was estimated through the Jaccard coefficient using the NTSYS-PC (Numerical Taxonomy and Multivariate Analysis System) software, version 2.02. The origin of the genetic diversity was quantified by the analysis of molecular variance (AMOVA) using the Arlequin 2,0 software. The 15 primers generated a total of 109 polymorphic bands and the bootstrap analysis showed that at least 100 bands is the ideal number for sampling the genetic diversity, as determined by the high value of correlation (r=0,99), the low value of the squared deviation sum (1,25), and the low stress (0,05). The results suggest that the studied populations are from the same origin. Management measures must be adopted in these breeding, even using other molecular markers in the way to amplify the genetic variability and the conservation of this important genetic resource. RAPD.The bootstrap analysis showed that from 100 bands the work already becomes more trustworthy, a time that the magnitude of the correlation was well next to the maximum value (r=0,99), as also the addition of squares of shunting lines (SQd) reached low value 1,25 and the value of it estresse (e) was of 0,05. In the analysis between pairs of groups, it was verified that the greater and minor similarity are in lathe, respectively, of 0,86 and 0,00. In that it says respect to the distribution of frequency of the similarities gotten between the 5,644 pairs formed in the genetic matrix, it can be verified that 32,69 % of the pairs had been enclosed in the classrooms with similarities varying of 0,01 the 0,10. One notices that the biggest percentage (85,59%) of the pairs was distributed in the three first classrooms of the extremities and that the minority of them (14,41%) presented similarities varying of 0,21 the 1,00. The test of Mantel showed correlation of 0,81 and the dendrograma generated 67 groups delimited for the Sm that was of 0,49. The biggest 0,86 similarity was of and the minor of 0,06. The relative data to the analysis of molecular variance had shown that the percentage of genetic variation between origins was low and significant (24,03%, p < 0,0001), evidencing that great part of the variation meets inside of the populations (75,97 %). markers RAPD they had been efficient in the characterization of the genetic similarity.Item Acesso aberto (Open Access) Estimação de parâmetros genéticos para características produtivas em búfalos (Bubalus bubalis) na Amazônia Oriental(Universidade Federal do Pará, 2007) RODRIGUES, Alessandra Epifanio; ARAÚJO, Cláudio Vieira de; http://lattes.cnpq.br/5049897507837031; MARQUES, José Ribamar Felipe; http://lattes.cnpq.br/0104908318773676The objective of this work was to estimate of genetics parameters of dairy buffaloes productive characteristics, such as: milk yield (MY), fat yield (FY), length of lactation (LL) and milk yield per day of calving interval (MYDCI) of buffaloes in the Eastern Amazon. The research was carried through at “Dr. Felisberto Camargo” farm, propriety of EMBRAPA/CPATU, where productive records had analyzed in the period of 1967 until 2005. It had been analyzed a total of 1.182 records of buffaloes females of Murrah breed and its crosses. The observed averages and the standard desviation MY, FY, LL and MYDCI were 1.663, 84 ± 343,60, 116,84 ± 29,71, 269,89 ± 56,36 and 3,88 ± 1,15, respectively. Genetic parameters had estimate by Restricted Maximum Likelihood method in which study the dairy yield of milk and fat were considered permanent effects in the period of birth, genetic group and birth order, besides the dairy yield. The estimate of heritability (h²) to MY, FY, LL and MYDCI were 0.25, 0.18, 0.08 and 0.09 respectively and with coefficients of repeatability (r) for MY, FY e LL of 0.33, 0.29 and 0.10, respectively. The genetic correlations among the characteristics were 0.93 (MY-FY), 0.76 (MY-LL), 0.99 (MY-MYDCI), 0.89 (FY-LL), 0.87 (FY-MYDCI) and -0.27 (LL-MYDCI). There is expresses percentage of animals on the herd studied with higher genetic with relation to medium population for characteristics. In the studied herd, should be considered the additive genetic variability to promote genetic improvement by observing that a majority percentage of the animals are genetically superior to referred characteristics.