Evaluation of semen characteristics in Corriedale rams under controlled and natural photoperiod and temperature conditions

Detalhes bibliográficos
Autor(a) principal: Girão, Raimundo Nonato
Data de Publicação: 2014
Outros Autores: Filho, Antônio Mies
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/16401
Resumo: Semen production was evaluated during one year in two groups of four Corriedale rams each: Group A (treated), submitted to 8 hr light: 16 hr darkness per day, at temperature of 18,3 ± 4,2°C; Group T (control), kept under natural conditions. The two groups were fed with the same nutritional regime: native pasture, hay alfalfa (1 kg/animal/day) and oat grains (0,8 kg/animal/ day). The treated group showed superior semen production in relation to the control group, with statistical difference (P < 0,05) for the following characteristics: volume, spermatic concentration, motility, vitality and spermatic abnormalities. The seminal fructose concentration did not show difference between the groups, but a higher concentration of citric acid in the seminal plasma was found in the group T (P < 0,05). The majority of seminal characteristics analyzed showed statistical difference among seasons of the year (P < 0,05), being the seasonal effects more striking over the control group.
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spelling Evaluation of semen characteristics in Corriedale rams under controlled and natural photoperiod and temperature conditionsCaracterísticas do sêmen de carneiros Corriedale mantidos em fotoperíodo e temperatura controlados e naturaissheep; semen production; sperm; daylight; nutritional regime; native pasture; alfalfa; oatsovinos; regime alimentar; pastagem nativa; espermatogênese; alfafa; aveiaSemen production was evaluated during one year in two groups of four Corriedale rams each: Group A (treated), submitted to 8 hr light: 16 hr darkness per day, at temperature of 18,3 ± 4,2°C; Group T (control), kept under natural conditions. The two groups were fed with the same nutritional regime: native pasture, hay alfalfa (1 kg/animal/day) and oat grains (0,8 kg/animal/ day). The treated group showed superior semen production in relation to the control group, with statistical difference (P < 0,05) for the following characteristics: volume, spermatic concentration, motility, vitality and spermatic abnormalities. The seminal fructose concentration did not show difference between the groups, but a higher concentration of citric acid in the seminal plasma was found in the group T (P < 0,05). The majority of seminal characteristics analyzed showed statistical difference among seasons of the year (P < 0,05), being the seasonal effects more striking over the control group.O experimento foi realizado na Faculdade de Veterinária da Universidade Federal do Rio Grande do Sul, em Porto Alegre, no período de 12 de março de 1981 a 01 de março de 1982. Procedeu-se à avaliação da produção de sêmen em dois grupos de quatro carneiros da raça Corriedale, submetidos a tratamentos distintos, a saber: Grupo A (tratado) - mantido em regime diário de 8 horas de luz x 16 horas de escuridão e à temperatura de 19,3 ± 4,2°C Grupo T (testemunha) - mantido em regime natural de luz e temperatura. Durante o experimento, os dois grupos foram submetidos ao mesmo regime alimentar, constituído de pastagem nativa, feno de alfafa (1kg/animal/dia) e aveia em grão (0,8 kg/animal/dia). O grupo mantido no regime especial de luminosidade e temperatura apresentou produção de sêmen superior ao grupo testemunha, mostrando diferença estatística (P < 0,05) para as seguintes características: volume, concentração espermática, motilidade, vitalidade e anormalidades espermáticas. A concentração de frutose seminal não diferiu entre os grupos, enquanto maior concentração de ácido cítrico do plasma seminal foi encontrada no grupo T (P < 0,05). A maioria das características do sêmen apresentou diferença estatística entre as estações do ano (P < 0,05), sendo verificados efeitos estacionais mais marcantes no grupo testemunha.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraGirão, Raimundo NonatoFilho, Antônio Mies2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16401Pesquisa Agropecuaria Brasileira; v.20, n.12, dez. 1985; 1395-1407Pesquisa Agropecuária Brasileira; v.20, n.12, dez. 1985; 1395-14071678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16401/10647info:eu-repo/semantics/openAccess2014-04-16T19:48:22Zoai:ojs.seer.sct.embrapa.br:article/16401Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T19:48:22Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Evaluation of semen characteristics in Corriedale rams under controlled and natural photoperiod and temperature conditions
Características do sêmen de carneiros Corriedale mantidos em fotoperíodo e temperatura controlados e naturais
title Evaluation of semen characteristics in Corriedale rams under controlled and natural photoperiod and temperature conditions
spellingShingle Evaluation of semen characteristics in Corriedale rams under controlled and natural photoperiod and temperature conditions
Girão, Raimundo Nonato
sheep; semen production; sperm; daylight; nutritional regime; native pasture; alfalfa; oats
ovinos; regime alimentar; pastagem nativa; espermatogênese; alfafa; aveia
title_short Evaluation of semen characteristics in Corriedale rams under controlled and natural photoperiod and temperature conditions
title_full Evaluation of semen characteristics in Corriedale rams under controlled and natural photoperiod and temperature conditions
title_fullStr Evaluation of semen characteristics in Corriedale rams under controlled and natural photoperiod and temperature conditions
title_full_unstemmed Evaluation of semen characteristics in Corriedale rams under controlled and natural photoperiod and temperature conditions
title_sort Evaluation of semen characteristics in Corriedale rams under controlled and natural photoperiod and temperature conditions
author Girão, Raimundo Nonato
author_facet Girão, Raimundo Nonato
Filho, Antônio Mies
author_role author
author2 Filho, Antônio Mies
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Girão, Raimundo Nonato
Filho, Antônio Mies
dc.subject.por.fl_str_mv sheep; semen production; sperm; daylight; nutritional regime; native pasture; alfalfa; oats
ovinos; regime alimentar; pastagem nativa; espermatogênese; alfafa; aveia
topic sheep; semen production; sperm; daylight; nutritional regime; native pasture; alfalfa; oats
ovinos; regime alimentar; pastagem nativa; espermatogênese; alfafa; aveia
description Semen production was evaluated during one year in two groups of four Corriedale rams each: Group A (treated), submitted to 8 hr light: 16 hr darkness per day, at temperature of 18,3 ± 4,2°C; Group T (control), kept under natural conditions. The two groups were fed with the same nutritional regime: native pasture, hay alfalfa (1 kg/animal/day) and oat grains (0,8 kg/animal/ day). The treated group showed superior semen production in relation to the control group, with statistical difference (P < 0,05) for the following characteristics: volume, spermatic concentration, motility, vitality and spermatic abnormalities. The seminal fructose concentration did not show difference between the groups, but a higher concentration of citric acid in the seminal plasma was found in the group T (P < 0,05). The majority of seminal characteristics analyzed showed statistical difference among seasons of the year (P < 0,05), being the seasonal effects more striking over the control group.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-16
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/16401
url https://seer.sct.embrapa.br/index.php/pab/article/view/16401
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/16401/10647
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.20, n.12, dez. 1985; 1395-1407
Pesquisa Agropecuária Brasileira; v.20, n.12, dez. 1985; 1395-1407
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
_version_ 1793416701002383360

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