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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

ProteÃnas do plasma seminal de touros Bos Indicus e associaÃÃes com parÃmetros seminais / Proteins of seminal plasma of bulls Bos indicus and associations with semen parameters

Michelle Moura da Silva 03 March 2011 (has links)
FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico / A realizaÃÃo desta pesquisa teve por objetivos a descriÃÃo do mapa eletroforÃtico bidimensional do plasma seminal de touros adultos Bos indicus, raÃa Brahman, bem como a determinaÃÃo das associaÃÃes estatÃsticas entre proteÃnas do plasma seminal e parÃmetros seminais destes touros. Amostras de sÃmen de 56 touros foram coletadas e o plasma seminal foi obtido atravÃs de centrifugaÃÃo e submetido à eletroforese bidimensional. Os gÃis foram corados com Coomassie coloidal, digitalizados e analisados por meio do aplicativo PDQuest. Os touros foram divididos em grupos de alta e baixa motilidade espermÃtica e alto e baixo percentual de cÃlulas espermÃticas morfologicamente normais. As proteÃnas mais abundantes no plasma seminal dos touros Bos indicus e detectadas em todos os 56 gÃis apresentaram semelhanÃa com espermadesinas e BSPs. A expressÃo de spots com valores de kDa e pI equivalentes aos das proteÃnas aSFP, BSPs, clusterina , albumina e osteopontina foram estatisticamente diferentes entre os grupos de animais com parÃmetros contrastantes de motilidade e morfologia espermÃticas. As associaÃÃes encontradas entre tais spots protÃicos e os parÃmetros seminais sugerem a possibilidade do uso destes como marcadores moleculares da fertilidade potencial dos animais. / This research aimed to describe the two-dimensional electrophoresis map of bull seminal plasma of adult Bos indicus, Brahman, and the determination of statistical associations between proteins of seminal plasma and semen parameters of these bulls. Semen samples from 56 bulls were collected and seminal plasma was obtained by centrifugation and subjected to two-dimensional electrophoresis. The gels were stained with colloidal Coomassie, scanned and analyzed using PDQuest application. The bulls were divided into groups of high and low sperm motility and high and low percentage of morphologically normal sperm cells. The most abundant proteins in seminal plasma of bulls Bos indicus and detected in all 56 gels showed similarity to espermadesinas and BSPs. The expression of spots with pI values ​​kDa protein equivalent to aSFP, BSPs, clusterin, albumin and osteopontin were significantly different between groups of animals with contrasting parameters of sperm motility and morphology. The associations found between such protein spots and semen parameters suggest the possibility of their use as molecular markers of potential fertility of animals.

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