Age, weight and ovulation rate of puberty of hairy sheep of Northeast Brazil
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
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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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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1793416677731336192 |