Effects of flushing with rehydrated corn grain silage on follicular development in tropical Santa Inês ewes

Detalhes bibliográficos
Autor(a) principal: Figueira,Lucas Machado
Data de Publicação: 2020
Outros Autores: Faria,Letícia Rodrigues, Campos,João Pedro Araújo, Silva,Débora Regina da, Furusho-Garcia,Iraides Ferreira, Leite,Rafael Fernandes, Lima,Renato Ribeiro de, Alves,Nadja Gomes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982020000100704
Resumo: ABSTRACT The objective of this study was to evaluate the effect of replacing ground corn (402 g kg−1 of dry matter) with rehydrated corn grain silage (RCGS; 425 g kg−1 of dry matter) in a flushing diet on follicular development in tropical Santa Inês ewes. Fifteen ewes were randomly assigned to one of two treatment groups: a diet with ground corn (control, n = 7) or a diet with RCGS (n = 8). The first day of the diets was designated d0, and the diets were fed for 30 days, up to two days after the end of the estrus synchronization protocol. The estrus synchronization protocol (intravaginal progestogen sponge for 11 days plus 300 IU eCG and 37.5 µg d-cloprostenol IM two days before sponge removal) started on d17 of the diets. The number and diameters of ovarian follicles ≥3 mm were assessed by ultrasound on the day before the diets were provided (d−1), on d14, and then daily from two days before sponge removal until ovulation or up to the eighth day after sponge removal. Blood samples were collected on days −1, 0, 6, 12, 18, 24, and 30 for glucose and urea analyses. There was no effect of the treatments on dry matter intake, plasma glucose, and urea nitrogen concentrations, or on the percentage of ewes that ovulated and on the number of ovulations. The number of follicles ≥3 mm did not differ between treatment groups; the number increased between d−1 and d14 and did not differ between d14 and d28. The diameter of ovulatory follicles at sponge removal, the interval from sponge removal to estrus, and the growth rate of the ovulatory follicles were greater in the RCGS group than in the control group, resulting in larger follicles at ovulation. Replacement of ground corn by RCGS in the flushing diet does not increase the number of ovulations but results in delayed onset of estrus and ovulation of larger follicles.
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spelling Effects of flushing with rehydrated corn grain silage on follicular development in tropical Santa Inês ewesblood metabolitesenergyfollicular diameterovulationABSTRACT The objective of this study was to evaluate the effect of replacing ground corn (402 g kg−1 of dry matter) with rehydrated corn grain silage (RCGS; 425 g kg−1 of dry matter) in a flushing diet on follicular development in tropical Santa Inês ewes. Fifteen ewes were randomly assigned to one of two treatment groups: a diet with ground corn (control, n = 7) or a diet with RCGS (n = 8). The first day of the diets was designated d0, and the diets were fed for 30 days, up to two days after the end of the estrus synchronization protocol. The estrus synchronization protocol (intravaginal progestogen sponge for 11 days plus 300 IU eCG and 37.5 µg d-cloprostenol IM two days before sponge removal) started on d17 of the diets. The number and diameters of ovarian follicles ≥3 mm were assessed by ultrasound on the day before the diets were provided (d−1), on d14, and then daily from two days before sponge removal until ovulation or up to the eighth day after sponge removal. Blood samples were collected on days −1, 0, 6, 12, 18, 24, and 30 for glucose and urea analyses. There was no effect of the treatments on dry matter intake, plasma glucose, and urea nitrogen concentrations, or on the percentage of ewes that ovulated and on the number of ovulations. The number of follicles ≥3 mm did not differ between treatment groups; the number increased between d−1 and d14 and did not differ between d14 and d28. The diameter of ovulatory follicles at sponge removal, the interval from sponge removal to estrus, and the growth rate of the ovulatory follicles were greater in the RCGS group than in the control group, resulting in larger follicles at ovulation. Replacement of ground corn by RCGS in the flushing diet does not increase the number of ovulations but results in delayed onset of estrus and ovulation of larger follicles.Sociedade Brasileira de Zootecnia2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982020000100704Revista Brasileira de Zootecnia v.49 2020reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.37496/rbz4920200041info:eu-repo/semantics/openAccessFigueira,Lucas MachadoFaria,Letícia RodriguesCampos,João Pedro AraújoSilva,Débora Regina daFurusho-Garcia,Iraides FerreiraLeite,Rafael FernandesLima,Renato Ribeiro deAlves,Nadja Gomeseng2020-11-04T00:00:00Zoai:scielo:S1516-35982020000100704Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2020-11-04T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Effects of flushing with rehydrated corn grain silage on follicular development in tropical Santa Inês ewes
title Effects of flushing with rehydrated corn grain silage on follicular development in tropical Santa Inês ewes
spellingShingle Effects of flushing with rehydrated corn grain silage on follicular development in tropical Santa Inês ewes
Figueira,Lucas Machado
blood metabolites
energy
follicular diameter
ovulation
title_short Effects of flushing with rehydrated corn grain silage on follicular development in tropical Santa Inês ewes
title_full Effects of flushing with rehydrated corn grain silage on follicular development in tropical Santa Inês ewes
title_fullStr Effects of flushing with rehydrated corn grain silage on follicular development in tropical Santa Inês ewes
title_full_unstemmed Effects of flushing with rehydrated corn grain silage on follicular development in tropical Santa Inês ewes
title_sort Effects of flushing with rehydrated corn grain silage on follicular development in tropical Santa Inês ewes
author Figueira,Lucas Machado
author_facet Figueira,Lucas Machado
Faria,Letícia Rodrigues
Campos,João Pedro Araújo
Silva,Débora Regina da
Furusho-Garcia,Iraides Ferreira
Leite,Rafael Fernandes
Lima,Renato Ribeiro de
Alves,Nadja Gomes
author_role author
author2 Faria,Letícia Rodrigues
Campos,João Pedro Araújo
Silva,Débora Regina da
Furusho-Garcia,Iraides Ferreira
Leite,Rafael Fernandes
Lima,Renato Ribeiro de
Alves,Nadja Gomes
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Figueira,Lucas Machado
Faria,Letícia Rodrigues
Campos,João Pedro Araújo
Silva,Débora Regina da
Furusho-Garcia,Iraides Ferreira
Leite,Rafael Fernandes
Lima,Renato Ribeiro de
Alves,Nadja Gomes
dc.subject.por.fl_str_mv blood metabolites
energy
follicular diameter
ovulation
topic blood metabolites
energy
follicular diameter
ovulation
description ABSTRACT The objective of this study was to evaluate the effect of replacing ground corn (402 g kg−1 of dry matter) with rehydrated corn grain silage (RCGS; 425 g kg−1 of dry matter) in a flushing diet on follicular development in tropical Santa Inês ewes. Fifteen ewes were randomly assigned to one of two treatment groups: a diet with ground corn (control, n = 7) or a diet with RCGS (n = 8). The first day of the diets was designated d0, and the diets were fed for 30 days, up to two days after the end of the estrus synchronization protocol. The estrus synchronization protocol (intravaginal progestogen sponge for 11 days plus 300 IU eCG and 37.5 µg d-cloprostenol IM two days before sponge removal) started on d17 of the diets. The number and diameters of ovarian follicles ≥3 mm were assessed by ultrasound on the day before the diets were provided (d−1), on d14, and then daily from two days before sponge removal until ovulation or up to the eighth day after sponge removal. Blood samples were collected on days −1, 0, 6, 12, 18, 24, and 30 for glucose and urea analyses. There was no effect of the treatments on dry matter intake, plasma glucose, and urea nitrogen concentrations, or on the percentage of ewes that ovulated and on the number of ovulations. The number of follicles ≥3 mm did not differ between treatment groups; the number increased between d−1 and d14 and did not differ between d14 and d28. The diameter of ovulatory follicles at sponge removal, the interval from sponge removal to estrus, and the growth rate of the ovulatory follicles were greater in the RCGS group than in the control group, resulting in larger follicles at ovulation. Replacement of ground corn by RCGS in the flushing diet does not increase the number of ovulations but results in delayed onset of estrus and ovulation of larger follicles.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982020000100704
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.37496/rbz4920200041
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dc.publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
dc.source.none.fl_str_mv Revista Brasileira de Zootecnia v.49 2020
reponame:Revista Brasileira de Zootecnia (Online)
instname:Sociedade Brasileira de Zootecnia (SBZ)
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instname_str Sociedade Brasileira de Zootecnia (SBZ)
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reponame_str Revista Brasileira de Zootecnia (Online)
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