Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers

Detalhes bibliográficos
Autor(a) principal: HAO,E
Data de Publicação: 2019
Outros Autores: Chen,H, Ge,S, Huang,R
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Poultry Science (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300311
Resumo: ABSTRACT Photoperiod and nutrition are major factors that affect the reproductive efficiency particularly in female animals. In this study we examined the interaction of photoperiod and food restriction on growth, sexual maturation and receptor mRNA expressions of leptin, melatonin, and estrogen in abdominal fat and the ovary of pullets. There were no interaction effects between photoperiod and feeding level on body weight, abdominal fat weight, ovary weight at both 14 wk and 18 wk. Abdominal fat weight of feed restriction group was significantly lower compared with the control group at the age of 14 wk, 18 wk, and age of the first egg (AFE) (p<0.05). Ovary LEPR (Leptin receptor) gene expression showed an interaction effect of the first egg. Restricted feeding significantly inhibited ovary ER (Estrogen receptor), LEPR and MELR1B (Melatonin 1B receptor) gene expression at 14 wk, 18 wk and the first egg. At 14-week-old, abdominal fat LEPR gene expression was significantly lower in long photoperiod group compared with the short photoperiod group. At the first egg, short photoperiod and feed restriction group reduced abdominal fat LEPR gene expression. The results indicated that the reproductive activity of pullets is sensitive to feed intake and photoperiod. Feed restriction down regulated the ER, LEPR, MELR1A (Melatonin 1A receptor) and MELR1B mRNA expression of the ovary at 14 wk, 18wk and AFE. Long photoperiod enhanced the LEPR, MELR1A and MELR1B mRNA expression of abdominal fat at AFE.
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spelling Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of LayersFeed restrictionMELROvaryPhotoperiodPulletABSTRACT Photoperiod and nutrition are major factors that affect the reproductive efficiency particularly in female animals. In this study we examined the interaction of photoperiod and food restriction on growth, sexual maturation and receptor mRNA expressions of leptin, melatonin, and estrogen in abdominal fat and the ovary of pullets. There were no interaction effects between photoperiod and feeding level on body weight, abdominal fat weight, ovary weight at both 14 wk and 18 wk. Abdominal fat weight of feed restriction group was significantly lower compared with the control group at the age of 14 wk, 18 wk, and age of the first egg (AFE) (p<0.05). Ovary LEPR (Leptin receptor) gene expression showed an interaction effect of the first egg. Restricted feeding significantly inhibited ovary ER (Estrogen receptor), LEPR and MELR1B (Melatonin 1B receptor) gene expression at 14 wk, 18 wk and the first egg. At 14-week-old, abdominal fat LEPR gene expression was significantly lower in long photoperiod group compared with the short photoperiod group. At the first egg, short photoperiod and feed restriction group reduced abdominal fat LEPR gene expression. The results indicated that the reproductive activity of pullets is sensitive to feed intake and photoperiod. Feed restriction down regulated the ER, LEPR, MELR1A (Melatonin 1A receptor) and MELR1B mRNA expression of the ovary at 14 wk, 18wk and AFE. Long photoperiod enhanced the LEPR, MELR1A and MELR1B mRNA expression of abdominal fat at AFE.Fundacao de Apoio a Ciência e Tecnologia Avicolas2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300311Brazilian Journal of Poultry Science v.21 n.3 2019reponame:Brazilian Journal of Poultry Science (Online)instname:Fundação APINCO de Ciência e Tecnologia Avícolas (FACTA)instacron:FACTA10.1590/1806-9061-2019-1042info:eu-repo/semantics/openAccessHAO,EChen,HGe,SHuang,Reng2019-11-07T00:00:00Zoai:scielo:S1516-635X2019000300311Revistahttp://www.scielo.br/rbcahttps://old.scielo.br/oai/scielo-oai.php||rvfacta@terra.com.br1806-90611516-635Xopendoar:2019-11-07T00:00Brazilian Journal of Poultry Science (Online) - Fundação APINCO de Ciência e Tecnologia Avícolas (FACTA)false
dc.title.none.fl_str_mv Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers
title Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers
spellingShingle Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers
HAO,E
Feed restriction
MELR
Ovary
Photoperiod
Pullet
title_short Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers
title_full Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers
title_fullStr Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers
title_full_unstemmed Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers
title_sort Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers
author HAO,E
author_facet HAO,E
Chen,H
Ge,S
Huang,R
author_role author
author2 Chen,H
Ge,S
Huang,R
author2_role author
author
author
dc.contributor.author.fl_str_mv HAO,E
Chen,H
Ge,S
Huang,R
dc.subject.por.fl_str_mv Feed restriction
MELR
Ovary
Photoperiod
Pullet
topic Feed restriction
MELR
Ovary
Photoperiod
Pullet
description ABSTRACT Photoperiod and nutrition are major factors that affect the reproductive efficiency particularly in female animals. In this study we examined the interaction of photoperiod and food restriction on growth, sexual maturation and receptor mRNA expressions of leptin, melatonin, and estrogen in abdominal fat and the ovary of pullets. There were no interaction effects between photoperiod and feeding level on body weight, abdominal fat weight, ovary weight at both 14 wk and 18 wk. Abdominal fat weight of feed restriction group was significantly lower compared with the control group at the age of 14 wk, 18 wk, and age of the first egg (AFE) (p<0.05). Ovary LEPR (Leptin receptor) gene expression showed an interaction effect of the first egg. Restricted feeding significantly inhibited ovary ER (Estrogen receptor), LEPR and MELR1B (Melatonin 1B receptor) gene expression at 14 wk, 18 wk and the first egg. At 14-week-old, abdominal fat LEPR gene expression was significantly lower in long photoperiod group compared with the short photoperiod group. At the first egg, short photoperiod and feed restriction group reduced abdominal fat LEPR gene expression. The results indicated that the reproductive activity of pullets is sensitive to feed intake and photoperiod. Feed restriction down regulated the ER, LEPR, MELR1A (Melatonin 1A receptor) and MELR1B mRNA expression of the ovary at 14 wk, 18wk and AFE. Long photoperiod enhanced the LEPR, MELR1A and MELR1B mRNA expression of abdominal fat at AFE.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300311
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300311
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1806-9061-2019-1042
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundacao de Apoio a Ciência e Tecnologia Avicolas
publisher.none.fl_str_mv Fundacao de Apoio a Ciência e Tecnologia Avicolas
dc.source.none.fl_str_mv Brazilian Journal of Poultry Science v.21 n.3 2019
reponame:Brazilian Journal of Poultry Science (Online)
instname:Fundação APINCO de Ciência e Tecnologia Avícolas (FACTA)
instacron:FACTA
instname_str Fundação APINCO de Ciência e Tecnologia Avícolas (FACTA)
instacron_str FACTA
institution FACTA
reponame_str Brazilian Journal of Poultry Science (Online)
collection Brazilian Journal of Poultry Science (Online)
repository.name.fl_str_mv Brazilian Journal of Poultry Science (Online) - Fundação APINCO de Ciência e Tecnologia Avícolas (FACTA)
repository.mail.fl_str_mv ||rvfacta@terra.com.br
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