Perfil de testosterona e parâmetros seminais de garanhões da raça Mangalarga Marchador dentro e fora da estação reprodutiva

Detalhes bibliográficos
Autor(a) principal: Neves, Maria Gazzinelli
Data de Publicação: 2014
Tipo de documento: Dissertação
Idioma: por
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://locus.ufv.br/handle/123456789/5823
Resumo: The aim of this study was to evaluate the reproductive parameters and the profile of testosterone release and their average concentrations in Mangalarga Marchador stallions. It was evaluated in two periods, during breed season and outside the breed season, in Viçosa, Muriaé and Teófilo Otoni-MG. The research was divided in two phases (First: July and August, 2013 and the second: January and February, 2014), using eleven stallions at the first one and eight at the second one, age between 5 and 25 years old. To determine the serum testosterone, they were blood sampled about 20 days after the beginning of winter(1st phase) and 20 days after the beginning of summer(2nd phase). The samples were collected for 12 hours/day, from 7am to 7pm, each 30 minutes. The testicular biometry was measured at the same Day of the blood sample. To determine the seminal parameters, sêmen was collected from the stallions the two days following the blood samples. At this time, during the semen collects, the reproductive behaviour was evaluated. Regarding the measurements of the testis, the quantitative variables, height, width, lengh and volume of right and left testis did not differ significantly between seasons(P>0.05). The same was observed about seminal and behavioral parameters, volume, appearance, motility, vigor, concentration, membrane integrity, reaction time, latency time, copulation time and number of mounts, in which the results do not indicate differences between seasons(P>0.05). Dispite the fact that the profile of testosterone release are differents during the seasons, there was no difference in means of concentrations (P>0,05). This differences were bigger during the morning, when the concentrations in this time were higher during breeding season. However, there was difference between animal interaction and season,which suggests that in some animals the mean androgen concentrations displayed a seasonal pattern, while in other animals, this behavior was not observed. It was concluded that seasonality has no effect on the reproductive characteristics as testis size, sexual behavior and semen parameters, beyond the average testosterone secretion, so that the influence on the latter not presented correlations with other important traits studied.
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spelling Neves, Maria Gazzinellihttp://lattes.cnpq.br/1012157388812441Torres, Ciro Alexandre Alveshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787213D4Guimarães, José Domingoshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782270U6Carvalho, Giovanni Ribeiro dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723068Z6Costa, Eduardo Paulino dahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787237D6Santos, Giancarlo Magalhães doshttp://lattes.cnpq.br/33650203924121702015-03-26T13:55:26Z2015-01-082015-03-26T13:55:26Z2014-07-25NEVES, Maria Gazzinelli. Testosterone profile and seminal parameters in Mangalarga Marchador stallions outside and inside the breeding season. 2014. 66 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2014.http://locus.ufv.br/handle/123456789/5823The aim of this study was to evaluate the reproductive parameters and the profile of testosterone release and their average concentrations in Mangalarga Marchador stallions. It was evaluated in two periods, during breed season and outside the breed season, in Viçosa, Muriaé and Teófilo Otoni-MG. The research was divided in two phases (First: July and August, 2013 and the second: January and February, 2014), using eleven stallions at the first one and eight at the second one, age between 5 and 25 years old. To determine the serum testosterone, they were blood sampled about 20 days after the beginning of winter(1st phase) and 20 days after the beginning of summer(2nd phase). The samples were collected for 12 hours/day, from 7am to 7pm, each 30 minutes. The testicular biometry was measured at the same Day of the blood sample. To determine the seminal parameters, sêmen was collected from the stallions the two days following the blood samples. At this time, during the semen collects, the reproductive behaviour was evaluated. Regarding the measurements of the testis, the quantitative variables, height, width, lengh and volume of right and left testis did not differ significantly between seasons(P>0.05). The same was observed about seminal and behavioral parameters, volume, appearance, motility, vigor, concentration, membrane integrity, reaction time, latency time, copulation time and number of mounts, in which the results do not indicate differences between seasons(P>0.05). Dispite the fact that the profile of testosterone release are differents during the seasons, there was no difference in means of concentrations (P>0,05). This differences were bigger during the morning, when the concentrations in this time were higher during breeding season. However, there was difference between animal interaction and season,which suggests that in some animals the mean androgen concentrations displayed a seasonal pattern, while in other animals, this behavior was not observed. It was concluded that seasonality has no effect on the reproductive characteristics as testis size, sexual behavior and semen parameters, beyond the average testosterone secretion, so that the influence on the latter not presented correlations with other important traits studied.O objetivo do presente estudo foi avaliar os parâmetros reprodutivos e o perfil de testosterona de garanhões da raça Mangalarga Marchador, em dois períodos, dentro da estação de monta e fora da estação reprodutiva, criados nos município de Viçosa, Muriaé e Teófilo Otoni MG e mantidos em regime semi-estabulado. O estudo foi divido em duas etapas (1a etapa: julho e agosto de 2013 e 2a etapa: janeiro e fevereiro de 2014) utilizando onze garanhões na primeira etapa e oito na segunda, com idades entre 5 e 25 anos que foram submetidos a colheitas de sangue para determinação da concentração de testosterona sérica, 20 dias após o início do inverno (1aetapa) e 20 dias após o início do verão (2a etapa). As colheitas foram realizadas durante 12 horas, intervaladas por 30 minutos. Foi mensurada, no mesmo dia da colheita de sangue, a biometria testicular de cada animal. Para a determinação dos parâmetros seminais, fez-se nos dois dias consecutivos da colheita de sangue, as colheitas de sêmen, totalizando dois ejaculados de cada garanhão por estação, momento em que também foi avaliado o comportamento pré-cópula de cada animal. Em relação à biometria testicular, percebeu-se que as variáveis quantitativas avaliadas, altura, largura, comprimento e volume dos testículos direito e esquerdo não tiveram diferenças entre as estações (P>0,05). Do mesmo modo, os parâmetros seminais e comportamentais, volume, aspecto seminal, motilidade, vigor e concentração eseprmática, integridade de membrana dos espermatozóides, tempo de reação, tempo de latência, tempo de monta e número de montas não apresentaram diferenças entre as estações do ano (P>0,05). Apesar de que a distribuição dos valores absolutos de testosterona serem diferentes dentro e fora da estação, não se observou diferença nas médias das concentrações (P>0,05). Essas diferenças foram maiores nas amostras feitas pela manhã, em que as concentrações no período durante a estação de monta foram maiores do que fora da estação reprodutiva (P>0,05). No entanto, ocorreu interação de animal e estação, o que permitiu concluir que em alguns animais as concentrações médias do andrógeno apresentaram comportamento sazonal, enquanto em outros animais, esse comportamento não foi observado. Portanto, sazonalidade não exerce efeito sobre as características reprodutivas como biometria testicular, comportamento sexual e parâmetros seminais, além da secreção de testosterona, sendo que a influência sobre esta última não apresenta correlações importantes com as demais características estudadas.Conselho Nacional de Desenvolvimento Científico e Tecnológicoapplication/pdfporUniversidade Federal de ViçosaMestrado em ZootecniaUFVBRGenética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e ForragiculMangalarga (Cavalo)Cavalo - ReproduçãoCavalo - SêmenCavalo - TestosteronaMangalarga (Horse)Horse - ReproductionHorse - SemenHorse - TestosteroneCNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA::REPRODUCAO ANIMALPerfil de testosterona e parâmetros seminais de garanhões da raça Mangalarga Marchador dentro e fora da estação reprodutivaTestosterone profile and seminal parameters in Mangalarga Marchador stallions outside and inside the breeding seasoninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf584112https://locus.ufv.br//bitstream/123456789/5823/1/texto%20completo.pdfa7c18b045b74693958d5dfb7232f1660MD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain117106https://locus.ufv.br//bitstream/123456789/5823/2/texto%20completo.pdf.txtaf0deee4efd9434dabd6c65ba8167befMD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3630https://locus.ufv.br//bitstream/123456789/5823/3/texto%20completo.pdf.jpg0d9402106c10ea588516a10e9729ce2bMD53123456789/58232016-04-11 23:14:08.497oai:locus.ufv.br:123456789/5823Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-12T02:14:08LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.por.fl_str_mv Perfil de testosterona e parâmetros seminais de garanhões da raça Mangalarga Marchador dentro e fora da estação reprodutiva
dc.title.alternative.eng.fl_str_mv Testosterone profile and seminal parameters in Mangalarga Marchador stallions outside and inside the breeding season
title Perfil de testosterona e parâmetros seminais de garanhões da raça Mangalarga Marchador dentro e fora da estação reprodutiva
spellingShingle Perfil de testosterona e parâmetros seminais de garanhões da raça Mangalarga Marchador dentro e fora da estação reprodutiva
Neves, Maria Gazzinelli
Mangalarga (Cavalo)
Cavalo - Reprodução
Cavalo - Sêmen
Cavalo - Testosterona
Mangalarga (Horse)
Horse - Reproduction
Horse - Semen
Horse - Testosterone
CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA::REPRODUCAO ANIMAL
title_short Perfil de testosterona e parâmetros seminais de garanhões da raça Mangalarga Marchador dentro e fora da estação reprodutiva
title_full Perfil de testosterona e parâmetros seminais de garanhões da raça Mangalarga Marchador dentro e fora da estação reprodutiva
title_fullStr Perfil de testosterona e parâmetros seminais de garanhões da raça Mangalarga Marchador dentro e fora da estação reprodutiva
title_full_unstemmed Perfil de testosterona e parâmetros seminais de garanhões da raça Mangalarga Marchador dentro e fora da estação reprodutiva
title_sort Perfil de testosterona e parâmetros seminais de garanhões da raça Mangalarga Marchador dentro e fora da estação reprodutiva
author Neves, Maria Gazzinelli
author_facet Neves, Maria Gazzinelli
author_role author
dc.contributor.authorLattes.por.fl_str_mv http://lattes.cnpq.br/1012157388812441
dc.contributor.author.fl_str_mv Neves, Maria Gazzinelli
dc.contributor.advisor-co1.fl_str_mv Torres, Ciro Alexandre Alves
dc.contributor.advisor-co1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787213D4
dc.contributor.advisor-co2.fl_str_mv Guimarães, José Domingos
dc.contributor.advisor-co2Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782270U6
dc.contributor.advisor1.fl_str_mv Carvalho, Giovanni Ribeiro de
dc.contributor.advisor1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723068Z6
dc.contributor.referee1.fl_str_mv Costa, Eduardo Paulino da
dc.contributor.referee1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787237D6
dc.contributor.referee2.fl_str_mv Santos, Giancarlo Magalhães dos
dc.contributor.referee2Lattes.fl_str_mv http://lattes.cnpq.br/3365020392412170
contributor_str_mv Torres, Ciro Alexandre Alves
Guimarães, José Domingos
Carvalho, Giovanni Ribeiro de
Costa, Eduardo Paulino da
Santos, Giancarlo Magalhães dos
dc.subject.por.fl_str_mv Mangalarga (Cavalo)
Cavalo - Reprodução
Cavalo - Sêmen
Cavalo - Testosterona
topic Mangalarga (Cavalo)
Cavalo - Reprodução
Cavalo - Sêmen
Cavalo - Testosterona
Mangalarga (Horse)
Horse - Reproduction
Horse - Semen
Horse - Testosterone
CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA::REPRODUCAO ANIMAL
dc.subject.eng.fl_str_mv Mangalarga (Horse)
Horse - Reproduction
Horse - Semen
Horse - Testosterone
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA::REPRODUCAO ANIMAL
description The aim of this study was to evaluate the reproductive parameters and the profile of testosterone release and their average concentrations in Mangalarga Marchador stallions. It was evaluated in two periods, during breed season and outside the breed season, in Viçosa, Muriaé and Teófilo Otoni-MG. The research was divided in two phases (First: July and August, 2013 and the second: January and February, 2014), using eleven stallions at the first one and eight at the second one, age between 5 and 25 years old. To determine the serum testosterone, they were blood sampled about 20 days after the beginning of winter(1st phase) and 20 days after the beginning of summer(2nd phase). The samples were collected for 12 hours/day, from 7am to 7pm, each 30 minutes. The testicular biometry was measured at the same Day of the blood sample. To determine the seminal parameters, sêmen was collected from the stallions the two days following the blood samples. At this time, during the semen collects, the reproductive behaviour was evaluated. Regarding the measurements of the testis, the quantitative variables, height, width, lengh and volume of right and left testis did not differ significantly between seasons(P>0.05). The same was observed about seminal and behavioral parameters, volume, appearance, motility, vigor, concentration, membrane integrity, reaction time, latency time, copulation time and number of mounts, in which the results do not indicate differences between seasons(P>0.05). Dispite the fact that the profile of testosterone release are differents during the seasons, there was no difference in means of concentrations (P>0,05). This differences were bigger during the morning, when the concentrations in this time were higher during breeding season. However, there was difference between animal interaction and season,which suggests that in some animals the mean androgen concentrations displayed a seasonal pattern, while in other animals, this behavior was not observed. It was concluded that seasonality has no effect on the reproductive characteristics as testis size, sexual behavior and semen parameters, beyond the average testosterone secretion, so that the influence on the latter not presented correlations with other important traits studied.
publishDate 2014
dc.date.issued.fl_str_mv 2014-07-25
dc.date.accessioned.fl_str_mv 2015-03-26T13:55:26Z
dc.date.available.fl_str_mv 2015-01-08
2015-03-26T13:55:26Z
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dc.identifier.citation.fl_str_mv NEVES, Maria Gazzinelli. Testosterone profile and seminal parameters in Mangalarga Marchador stallions outside and inside the breeding season. 2014. 66 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2014.
dc.identifier.uri.fl_str_mv http://locus.ufv.br/handle/123456789/5823
identifier_str_mv NEVES, Maria Gazzinelli. Testosterone profile and seminal parameters in Mangalarga Marchador stallions outside and inside the breeding season. 2014. 66 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2014.
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