Composição Corporal e Puberdade de Leitoas Alimentadas com Níveis Alto e Baixo de Proteína na Dieta

Detalhes bibliográficos
Autor(a) principal: Budiño, Fábio Enrique Lemos [UNESP]
Data de Publicação: 2001
Outros Autores: De Mello Kessler, Alexandre, Bernardi, Mari Lourdes
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/219313
Resumo: With the aim of altering body composition, diets with different protein levels (12 and 18 CP) were offered to breeding gilts from 100 to 221 days of age. During this period, body weight, backfat thickness, oestrus manifestation, characteristics of reproductive tract and nitrogen balance were evaluated. Nitrogen balance was measured during two metabolism trials (at 136 and at 201 days of age). In both trials, gilts fed 18% CP showed higher nitrogen intake, retention and excretion and higher plasmatic and urinary urea levels (P<0.001). The efficiency of nitrogen utilization was not influenced by dietary protein level (P>.05). The low-protein diet reduced by 48% the excretion of nitrogen. Gilts fed 12% CP showed a greater backfat change (7.4 mm) than those fed 18% CP (4.5 mm), between 100 and 207 days of age (P<.02). Body weight, uterine weight, uterine horns length and number of corpora lutea were not influenced by the level of dietary protein. The rate of oestrus detection, up to 25 days after male exposure, was similar to females receiving 12% (71%) and 18% CP (75%). The protein level affected body composition without altering body weight, onset of puberty and characteristics of the reproductive tract, suggesting that a low-protein diet can be used as an strategy to increase the backfat thickness of breeding gilts.
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spelling Composição Corporal e Puberdade de Leitoas Alimentadas com Níveis Alto e Baixo de Proteína na DietaBody Composition and Puberty of Gilts Fed Low and High Protein DietsGiltsMetabolismNitrogen excretionProteinReproductionWith the aim of altering body composition, diets with different protein levels (12 and 18 CP) were offered to breeding gilts from 100 to 221 days of age. During this period, body weight, backfat thickness, oestrus manifestation, characteristics of reproductive tract and nitrogen balance were evaluated. Nitrogen balance was measured during two metabolism trials (at 136 and at 201 days of age). In both trials, gilts fed 18% CP showed higher nitrogen intake, retention and excretion and higher plasmatic and urinary urea levels (P<0.001). The efficiency of nitrogen utilization was not influenced by dietary protein level (P>.05). The low-protein diet reduced by 48% the excretion of nitrogen. Gilts fed 12% CP showed a greater backfat change (7.4 mm) than those fed 18% CP (4.5 mm), between 100 and 207 days of age (P<.02). Body weight, uterine weight, uterine horns length and number of corpora lutea were not influenced by the level of dietary protein. The rate of oestrus detection, up to 25 days after male exposure, was similar to females receiving 12% (71%) and 18% CP (75%). The protein level affected body composition without altering body weight, onset of puberty and characteristics of the reproductive tract, suggesting that a low-protein diet can be used as an strategy to increase the backfat thickness of breeding gilts.FCAV/UNESP, Jaboticabal-SPDepto. de Zootecnia FAGRO/UFRGS, Porto Alegre, RSFCAV/UNESP, Jaboticabal-SPUniversidade Estadual Paulista (UNESP)FAGRO/UFRGSBudiño, Fábio Enrique Lemos [UNESP]De Mello Kessler, AlexandreBernardi, Mari Lourdes2022-04-28T18:54:58Z2022-04-28T18:54:58Z2001-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1481-1489Revista Brasileira de Zootecnia, v. 30, n. 5, p. 1481-1489, 2001.0100-4859http://hdl.handle.net/11449/2193132-s2.0-0347039569Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Zootecniainfo:eu-repo/semantics/openAccess2022-04-28T18:54:58Zoai:repositorio.unesp.br:11449/219313Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:30:35.353794Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Composição Corporal e Puberdade de Leitoas Alimentadas com Níveis Alto e Baixo de Proteína na Dieta
Body Composition and Puberty of Gilts Fed Low and High Protein Diets
title Composição Corporal e Puberdade de Leitoas Alimentadas com Níveis Alto e Baixo de Proteína na Dieta
spellingShingle Composição Corporal e Puberdade de Leitoas Alimentadas com Níveis Alto e Baixo de Proteína na Dieta
Budiño, Fábio Enrique Lemos [UNESP]
Gilts
Metabolism
Nitrogen excretion
Protein
Reproduction
title_short Composição Corporal e Puberdade de Leitoas Alimentadas com Níveis Alto e Baixo de Proteína na Dieta
title_full Composição Corporal e Puberdade de Leitoas Alimentadas com Níveis Alto e Baixo de Proteína na Dieta
title_fullStr Composição Corporal e Puberdade de Leitoas Alimentadas com Níveis Alto e Baixo de Proteína na Dieta
title_full_unstemmed Composição Corporal e Puberdade de Leitoas Alimentadas com Níveis Alto e Baixo de Proteína na Dieta
title_sort Composição Corporal e Puberdade de Leitoas Alimentadas com Níveis Alto e Baixo de Proteína na Dieta
author Budiño, Fábio Enrique Lemos [UNESP]
author_facet Budiño, Fábio Enrique Lemos [UNESP]
De Mello Kessler, Alexandre
Bernardi, Mari Lourdes
author_role author
author2 De Mello Kessler, Alexandre
Bernardi, Mari Lourdes
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
FAGRO/UFRGS
dc.contributor.author.fl_str_mv Budiño, Fábio Enrique Lemos [UNESP]
De Mello Kessler, Alexandre
Bernardi, Mari Lourdes
dc.subject.por.fl_str_mv Gilts
Metabolism
Nitrogen excretion
Protein
Reproduction
topic Gilts
Metabolism
Nitrogen excretion
Protein
Reproduction
description With the aim of altering body composition, diets with different protein levels (12 and 18 CP) were offered to breeding gilts from 100 to 221 days of age. During this period, body weight, backfat thickness, oestrus manifestation, characteristics of reproductive tract and nitrogen balance were evaluated. Nitrogen balance was measured during two metabolism trials (at 136 and at 201 days of age). In both trials, gilts fed 18% CP showed higher nitrogen intake, retention and excretion and higher plasmatic and urinary urea levels (P<0.001). The efficiency of nitrogen utilization was not influenced by dietary protein level (P>.05). The low-protein diet reduced by 48% the excretion of nitrogen. Gilts fed 12% CP showed a greater backfat change (7.4 mm) than those fed 18% CP (4.5 mm), between 100 and 207 days of age (P<.02). Body weight, uterine weight, uterine horns length and number of corpora lutea were not influenced by the level of dietary protein. The rate of oestrus detection, up to 25 days after male exposure, was similar to females receiving 12% (71%) and 18% CP (75%). The protein level affected body composition without altering body weight, onset of puberty and characteristics of the reproductive tract, suggesting that a low-protein diet can be used as an strategy to increase the backfat thickness of breeding gilts.
publishDate 2001
dc.date.none.fl_str_mv 2001-09-01
2022-04-28T18:54:58Z
2022-04-28T18:54:58Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Revista Brasileira de Zootecnia, v. 30, n. 5, p. 1481-1489, 2001.
0100-4859
http://hdl.handle.net/11449/219313
2-s2.0-0347039569
identifier_str_mv Revista Brasileira de Zootecnia, v. 30, n. 5, p. 1481-1489, 2001.
0100-4859
2-s2.0-0347039569
url http://hdl.handle.net/11449/219313
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Revista Brasileira de Zootecnia
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1481-1489
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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