Age, weight and ovulation rate of puberty of hairy sheep of Northeast Brazil

Detalhes bibliográficos
Autor(a) principal: Silva, Antonio Emídio Dias Feliciano
Data de Publicação: 2014
Outros Autores: Nunes, José Ferreira, Riera, Gerardo Simon, Foote, Waren C.
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/13840
Resumo: In 72 Morada Nova, Santa Inês and Brazilian Somalis, hairy-breed ewes were determined weight, age and ovulation rate at puberty by means of ovarian endoscopy. The ewes were submitted to endoscopy examination sixty hours after teasing with vasectomized rams. The ewes were divided in two groups, G I and G II, 36 each, and alloted to two treatments as follows: native pasture and confinement. These groups were again arranged in a factorial design (3 x 2 x 2) according to the breeds, type of birth and nutritional management. In the pasture, the age and weight at puberty of Morada Nova, Somalis and Santa Inês breeds were, respectively, 306.9, 346.4 and 360.4 days and, 23.2 kg, 19.3 kg and 27.1 kg; on the other hand, showing in confinement, 250.7, 268.4 and 277.8 days and, 23.8 kg, 23.7 kg and 34.2 kg. The age (P <0.05) and weight (P <0.001) at puberty were affected by nutritional management in the three breeds. The difference ovulation rate was not significant in comparison between groups. The Morada Nova breed exhibited the best physiological adaptation to native pasture, in precocity and ovulation rate. The hairy sheep of Northeast Brazil showed the first estrus (puberty) at around one year of age and with a weight equivalent to 60% to 70% of the adult weight for each breed. 
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spelling Age, weight and ovulation rate of puberty of hairy sheep of Northeast BrazilIdade, peso e taxa de ovulação à puberdade em ovinos deslanados no Nordeste do Brasilendoscopy; first estrus; type of birth; nutritionendoscopias; primeiro estro; tipo de parto; nutriçãoIn 72 Morada Nova, Santa Inês and Brazilian Somalis, hairy-breed ewes were determined weight, age and ovulation rate at puberty by means of ovarian endoscopy. The ewes were submitted to endoscopy examination sixty hours after teasing with vasectomized rams. The ewes were divided in two groups, G I and G II, 36 each, and alloted to two treatments as follows: native pasture and confinement. These groups were again arranged in a factorial design (3 x 2 x 2) according to the breeds, type of birth and nutritional management. In the pasture, the age and weight at puberty of Morada Nova, Somalis and Santa Inês breeds were, respectively, 306.9, 346.4 and 360.4 days and, 23.2 kg, 19.3 kg and 27.1 kg; on the other hand, showing in confinement, 250.7, 268.4 and 277.8 days and, 23.8 kg, 23.7 kg and 34.2 kg. The age (P <0.05) and weight (P <0.001) at puberty were affected by nutritional management in the three breeds. The difference ovulation rate was not significant in comparison between groups. The Morada Nova breed exhibited the best physiological adaptation to native pasture, in precocity and ovulation rate. The hairy sheep of Northeast Brazil showed the first estrus (puberty) at around one year of age and with a weight equivalent to 60% to 70% of the adult weight for each breed. Em 72 fêmeas de ovinos deslanados das raças Morada Nova, Santa Inês e Somalis brasileira, foi determinado o peso e idade à puberdade e, a taxa de ovulação, observada através de endoscopias 60 horas após a detecção do estro, por intermédio de machos vasectomizados. Os animais foram divididos em dois grupos de 36 fêmeas, obedecendo ao fatorial 3 x 2 x 2, quanto a raças, tipo de parto e manejo nutricional (pastagem nativa e confinamento). A idade e peso à puberdade para os ovinos das raças Morada Nova, Somalis brasileira e Santa Inês na pastagem nativa, foi, respectivamente, de 306,9; 346,0 e 360,4 dias e, 23,2 kg; 19,3 kg e 27,1 kg, sendo no confinamento 250,7; 268,4 e 277,8 dias e, 23,8 kg; 23,7 kg e 34,2 kg. O manejo nutricional influenciou a idade (P <0,05) e peso (P <0,001) da puberdade das três raças. Não houve diferença significativa entre os grupos para todas as raças quanto à taxa de ovulação. Os ovinos da raça Morada Nova apresentaram uma melhor adaptação fisiológica às condições da pastagem nativa, com maior precocidade e taxa de ovulação à puberdade. Os ovinos deslanados criados no Nordeste do Brasil podem evidenciar o primeiro estro (puberdade) até um ano de idade e com 60% a 70% do peso vivo adulto da raça. Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSilva, Antonio Emídio Dias FelicianoNunes, José FerreiraRiera, Gerardo SimonFoote, Waren C.2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/13840Pesquisa Agropecuaria Brasileira; v.23, n.3, mar. 1988; 271-283Pesquisa Agropecuária Brasileira; v.23, n.3, mar. 1988; 271-2831678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/13840/7850info:eu-repo/semantics/openAccess2014-09-08T17:59:06Zoai:ojs.seer.sct.embrapa.br:article/13840Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-08T17:59:06Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Age, weight and ovulation rate of puberty of hairy sheep of Northeast Brazil
Idade, peso e taxa de ovulação à puberdade em ovinos deslanados no Nordeste do Brasil
title Age, weight and ovulation rate of puberty of hairy sheep of Northeast Brazil
spellingShingle Age, weight and ovulation rate of puberty of hairy sheep of Northeast Brazil
Silva, Antonio Emídio Dias Feliciano
endoscopy; first estrus; type of birth; nutrition
endoscopias; primeiro estro; tipo de parto; nutrição
title_short Age, weight and ovulation rate of puberty of hairy sheep of Northeast Brazil
title_full Age, weight and ovulation rate of puberty of hairy sheep of Northeast Brazil
title_fullStr Age, weight and ovulation rate of puberty of hairy sheep of Northeast Brazil
title_full_unstemmed Age, weight and ovulation rate of puberty of hairy sheep of Northeast Brazil
title_sort Age, weight and ovulation rate of puberty of hairy sheep of Northeast Brazil
author Silva, Antonio Emídio Dias Feliciano
author_facet Silva, Antonio Emídio Dias Feliciano
Nunes, José Ferreira
Riera, Gerardo Simon
Foote, Waren C.
author_role author
author2 Nunes, José Ferreira
Riera, Gerardo Simon
Foote, Waren C.
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Silva, Antonio Emídio Dias Feliciano
Nunes, José Ferreira
Riera, Gerardo Simon
Foote, Waren C.
dc.subject.por.fl_str_mv endoscopy; first estrus; type of birth; nutrition
endoscopias; primeiro estro; tipo de parto; nutrição
topic endoscopy; first estrus; type of birth; nutrition
endoscopias; primeiro estro; tipo de parto; nutrição
description In 72 Morada Nova, Santa Inês and Brazilian Somalis, hairy-breed ewes were determined weight, age and ovulation rate at puberty by means of ovarian endoscopy. The ewes were submitted to endoscopy examination sixty hours after teasing with vasectomized rams. The ewes were divided in two groups, G I and G II, 36 each, and alloted to two treatments as follows: native pasture and confinement. These groups were again arranged in a factorial design (3 x 2 x 2) according to the breeds, type of birth and nutritional management. In the pasture, the age and weight at puberty of Morada Nova, Somalis and Santa Inês breeds were, respectively, 306.9, 346.4 and 360.4 days and, 23.2 kg, 19.3 kg and 27.1 kg; on the other hand, showing in confinement, 250.7, 268.4 and 277.8 days and, 23.8 kg, 23.7 kg and 34.2 kg. The age (P <0.05) and weight (P <0.001) at puberty were affected by nutritional management in the three breeds. The difference ovulation rate was not significant in comparison between groups. The Morada Nova breed exhibited the best physiological adaptation to native pasture, in precocity and ovulation rate. The hairy sheep of Northeast Brazil showed the first estrus (puberty) at around one year of age and with a weight equivalent to 60% to 70% of the adult weight for each breed. 
publishDate 2014
dc.date.none.fl_str_mv 2014-04-17
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/13840
url https://seer.sct.embrapa.br/index.php/pab/article/view/13840
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/13840/7850
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.23, n.3, mar. 1988; 271-283
Pesquisa Agropecuária Brasileira; v.23, n.3, mar. 1988; 271-283
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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