Evaluation of semen characteristics in Corriedale rams under controlled and natural photoperiod and temperature conditions
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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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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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 |
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1793416701002383360 |