The effect of nutrition on the ovulation rate and number of follicles, during one year, of hairy sheep of Northeast Brazil

Detalhes bibliográficos
Autor(a) principal: Silva, Antonio Emídio Dias Feliciano
Data de Publicação: 2014
Outros Autores: Foote, Warren C., Riera, Simon G., Unanian, Maria Marina
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/14990
Resumo: The objective of this study was to determine the ovarian activity of Morada Nova, Santa Inês and Brazilian Somalis hairy breed ewes. Seventy two animals were divided in two groups, G I and G II, 36 each, and placed on two nutritional treatments: confinement and native pasture. These groups were again arranged in a factorial design (3x2) according to the breeds. During one year the ewes were submitted to monthly endoscopy to verify the presence of follicles and luteal phase. The ewes of Morada Nova breed showed a higher ovulation rate (P<0.0001), frequency (P<0.05) number of follicles (P<0.05) and multiple ovulations (P<0.05) than those of Santa Inês and Brazilian Somalis. The sheep mantained on native pasture presented a better ovulation rate (P<0.001) than those of confinement. Similare differences could be observed between the rainy and dry seasons. During the rainy season no differences were observed between the breeds. The determination of the rate and frequency of ovulation, during a year, enabled better understanding of the potential of the sexual activity of the hairy sheep of Northeast Brazil.
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spelling The effect of nutrition on the ovulation rate and number of follicles, during one year, of hairy sheep of Northeast BrazilEfeito do manejo nutricional sobre a taxa de ovulação e de folículos, no decorrer do ano, em ovinos deslanados no Nordeste do Brasilovarian activity; nutrition; confinement; native pastureatividade ovariana; nutrição; confinamento; pastagem nativaThe objective of this study was to determine the ovarian activity of Morada Nova, Santa Inês and Brazilian Somalis hairy breed ewes. Seventy two animals were divided in two groups, G I and G II, 36 each, and placed on two nutritional treatments: confinement and native pasture. These groups were again arranged in a factorial design (3x2) according to the breeds. During one year the ewes were submitted to monthly endoscopy to verify the presence of follicles and luteal phase. The ewes of Morada Nova breed showed a higher ovulation rate (P<0.0001), frequency (P<0.05) number of follicles (P<0.05) and multiple ovulations (P<0.05) than those of Santa Inês and Brazilian Somalis. The sheep mantained on native pasture presented a better ovulation rate (P<0.001) than those of confinement. Similare differences could be observed between the rainy and dry seasons. During the rainy season no differences were observed between the breeds. The determination of the rate and frequency of ovulation, during a year, enabled better understanding of the potential of the sexual activity of the hairy sheep of Northeast Brazil.Ovinos deslanados das raças Morada Nova, Santa Inês e Somalis brasileira, foram submetidos a endoscopias mensais, a fim de verificar a atividade ovariana, quanto a presença de folículos e corpos lúteos no decorrer do ano. Setenta e duas fêmeas foram divididas em dois grupos, G I (36) em confinamento e G II (36) na pastagem nativa. Os grupos G I te G II foram ainda divididos conforme raças, sendo doze animais de cada raça por grupo. Os animais da raça Morada Nova mostraram maior taxa e frequência de ovulação bem como maior número de folículos (P<0,0001, P<0,05 e P<0,05 respectivamente) do que os da raça Somalis brasileira e Santa Inês. Ainda os animais da raça Morada Nova apresentaram maior (P<0,05) número de fêmeas com ovulações múltiplas. O grupo em pastagem nativa proporcionou maior (P< 0,001) taxa de ovulação do que o grupo em confinamento, o mesmo ocorrendo com o período chuvoso em relação ao seco. No período chuvoso não houve diferença na taxa de ovulação nos animais das três raças. O conhecimento da taxa e frequência de ovulação, durante o ano, permitiu revelar o potencial da atividade sexual das raças de ovinos deslanados criados no Nordeste do Brasil.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSilva, Antonio Emídio Dias FelicianoFoote, Warren C.Riera, Simon G.Unanian, Maria Marina2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/14990Pesquisa Agropecuaria Brasileira; v.22, n.6, jun. 1987; 635-645Pesquisa Agropecuária Brasileira; v.22, n.6, jun. 1987; 635-6451678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/14990/8710info:eu-repo/semantics/openAccess2014-10-08T17:33:38Zoai:ojs.seer.sct.embrapa.br:article/14990Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-10-08T17:33:38Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv The effect of nutrition on the ovulation rate and number of follicles, during one year, of hairy sheep of Northeast Brazil
Efeito do manejo nutricional sobre a taxa de ovulação e de folículos, no decorrer do ano, em ovinos deslanados no Nordeste do Brasil
title The effect of nutrition on the ovulation rate and number of follicles, during one year, of hairy sheep of Northeast Brazil
spellingShingle The effect of nutrition on the ovulation rate and number of follicles, during one year, of hairy sheep of Northeast Brazil
Silva, Antonio Emídio Dias Feliciano
ovarian activity; nutrition; confinement; native pasture
atividade ovariana; nutrição; confinamento; pastagem nativa
title_short The effect of nutrition on the ovulation rate and number of follicles, during one year, of hairy sheep of Northeast Brazil
title_full The effect of nutrition on the ovulation rate and number of follicles, during one year, of hairy sheep of Northeast Brazil
title_fullStr The effect of nutrition on the ovulation rate and number of follicles, during one year, of hairy sheep of Northeast Brazil
title_full_unstemmed The effect of nutrition on the ovulation rate and number of follicles, during one year, of hairy sheep of Northeast Brazil
title_sort The effect of nutrition on the ovulation rate and number of follicles, during one year, of hairy sheep of Northeast Brazil
author Silva, Antonio Emídio Dias Feliciano
author_facet Silva, Antonio Emídio Dias Feliciano
Foote, Warren C.
Riera, Simon G.
Unanian, Maria Marina
author_role author
author2 Foote, Warren C.
Riera, Simon G.
Unanian, Maria Marina
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Silva, Antonio Emídio Dias Feliciano
Foote, Warren C.
Riera, Simon G.
Unanian, Maria Marina
dc.subject.por.fl_str_mv ovarian activity; nutrition; confinement; native pasture
atividade ovariana; nutrição; confinamento; pastagem nativa
topic ovarian activity; nutrition; confinement; native pasture
atividade ovariana; nutrição; confinamento; pastagem nativa
description The objective of this study was to determine the ovarian activity of Morada Nova, Santa Inês and Brazilian Somalis hairy breed ewes. Seventy two animals were divided in two groups, G I and G II, 36 each, and placed on two nutritional treatments: confinement and native pasture. These groups were again arranged in a factorial design (3x2) according to the breeds. During one year the ewes were submitted to monthly endoscopy to verify the presence of follicles and luteal phase. The ewes of Morada Nova breed showed a higher ovulation rate (P<0.0001), frequency (P<0.05) number of follicles (P<0.05) and multiple ovulations (P<0.05) than those of Santa Inês and Brazilian Somalis. The sheep mantained on native pasture presented a better ovulation rate (P<0.001) than those of confinement. Similare differences could be observed between the rainy and dry seasons. During the rainy season no differences were observed between the breeds. The determination of the rate and frequency of ovulation, during a year, enabled better understanding of the potential of the sexual activity of the hairy sheep of Northeast Brazil.
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/14990
url https://seer.sct.embrapa.br/index.php/pab/article/view/14990
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/14990/8710
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.22, n.6, jun. 1987; 635-645
Pesquisa Agropecuária Brasileira; v.22, n.6, jun. 1987; 635-645
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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