The effect of grazing intensity and supplementation on performance, stress indicators and metabolic profiles of finishing lambs
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19405 |
Resumo: | In the present study, the effect of grazing intensity (GI) and feed supplementation in sixty-four crossbred Santa Inês lambs was assessed based on performance, blood stress indicators, and metabolic profiles. The GIs analyzed were VH = very high, H = high, L = low, and VL = very low, and were represented by the residual leaf area index (LAIr). The lambs were divided into two groups, supplemented (SP) and non-supplemented (NSP). The dry matter intake (DMI) and average daily gain (ADG) increased linearly with decreasing GI (P < 0.05), and the ADG was higher for the NSP group than the SP group (P < 0.05). The plasma cortisol concentration was higher in the NSP group (P < 0.05), and it was not affected by GIs (P > 0.05). The neutrophil:lymphocyte (N:L) ratio decreased linearly with GI (P < 0.05), and the SP group had a higher N:L ratio (P < 0.05). None of the parameters evaluated for protein metabolism were affected by GI (P > 0.05), except albumin, where the SP group had a higher concentration of this metabolite (P < 0.05). Regarding energy metabolism indicators, glucose showed a linear increase with a decrease in GI (P < 0.05) and was higher in the SP group (P < 0.05); however, there was a decreasing linear effect (P < 0.05) and the NSP group had higher serum levels (P < 0.05) of non-esterified fatty acids (NEFA). The concentration of beta hydroxybutyrate (HBA-B) was higher in the SP group (P < 0.05). The concentration of calcium was affected by GI (P < 0.05). The phosphorus concentration was higher in the SP group (P < 0.05), and concentration of magnesium was not affected by any of the treatments (P > 0.05). It was concluded that GI and SP modified the performance, stress indicators, and metabolic profiles of finishing lambs. |
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Semina. Ciências Agrárias (Online) |
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The effect of grazing intensity and supplementation on performance, stress indicators and metabolic profiles of finishing lambsEfeito de intensidade de pastejo e suplementação no desempenho, indicadores de estresse e perfil metabólico de cordeiros em terminaçãoBlood parametersCortisolEnergy metabolismOvinePastureProtein metabolism.CortisolMetabolismo energéticoMetabolismo protéicoOvinoParâmetros sanguíneosPasto.In the present study, the effect of grazing intensity (GI) and feed supplementation in sixty-four crossbred Santa Inês lambs was assessed based on performance, blood stress indicators, and metabolic profiles. The GIs analyzed were VH = very high, H = high, L = low, and VL = very low, and were represented by the residual leaf area index (LAIr). The lambs were divided into two groups, supplemented (SP) and non-supplemented (NSP). The dry matter intake (DMI) and average daily gain (ADG) increased linearly with decreasing GI (P < 0.05), and the ADG was higher for the NSP group than the SP group (P < 0.05). The plasma cortisol concentration was higher in the NSP group (P < 0.05), and it was not affected by GIs (P > 0.05). The neutrophil:lymphocyte (N:L) ratio decreased linearly with GI (P < 0.05), and the SP group had a higher N:L ratio (P < 0.05). None of the parameters evaluated for protein metabolism were affected by GI (P > 0.05), except albumin, where the SP group had a higher concentration of this metabolite (P < 0.05). Regarding energy metabolism indicators, glucose showed a linear increase with a decrease in GI (P < 0.05) and was higher in the SP group (P < 0.05); however, there was a decreasing linear effect (P < 0.05) and the NSP group had higher serum levels (P < 0.05) of non-esterified fatty acids (NEFA). The concentration of beta hydroxybutyrate (HBA-B) was higher in the SP group (P < 0.05). The concentration of calcium was affected by GI (P < 0.05). The phosphorus concentration was higher in the SP group (P < 0.05), and concentration of magnesium was not affected by any of the treatments (P > 0.05). It was concluded that GI and SP modified the performance, stress indicators, and metabolic profiles of finishing lambs.No presente estudo foi avaliado o efeito de intensidades de pastejo (IP) pelo índice de área foliar residual (IAFr). Onde, 0,8; 1,4; 2,0 e 2,6 de IAFr corresponde a MA= muito alto, A= alto, B= baixo e MB= muito baixo com suplemento (SP) ou não suplementado (NSP) no desempenho, indicadores de estresse e perfil metabólico em sessenta e quatro cordeiros mestiços Santa Inês (15,40±2,31 kg peso vivo). O consumo de matéria seca (CMS) e ganho médio diário (GMD), em resposta a IP, apresentaram efeito linear crescente (P<0,05) com a diminuição da IP e o grupo NSP foi superior (P<0,05) ao grupo SP quanto ao CMS. A concentração plasmática de cortisol foi maior no grupo NSP (P<0,05) e não apresentou efeito (P>0,05) entre as IP. A relação Neutrófilo:Linfócito apresentou efeito linear decrescente (P<0,05) com a IP e o grupo SPT apresentou maior (P<0,05) relação Neutrófilo:Linfócito. Nenhum dos parâmetros avaliados referentes ao metabolismo proteico foram afetados (P>0,05) pela IP, exceto a Albumina que apresentou efeito (P<0,05) e o grupo SP apresentou maior concentração desse metabólito. Referente aos indicadores do metabolismo energético, a glicose apresentou efeito linear crescente (P<0,05) com o a diminuição da IP e foi maior no grupo SP (P<0,05), de maneira oposta, houve efeito linear decrescente dos ácidos graxos não esterificados (AGNE) (P<0,05) e o grupo NSP apresentou maior (P<0,05) nível sérico. A concentração de betahidroxibutirato (B-HBA) foi maior (P<0,05) no grupo SPT. A concentração do cálcio foi modificada (P<0,05) pela IP. A concentração do fósforo foi maior (P<0,05) no grupo SP e o magnésio não apresentou efeito (P>0,05) de nenhum dos tratamentos. Conclui-se que a IP e SP modificou o desempenho, indicadores de estresse e perfil metabólico de cordeiros em terminação.UEL2015-12-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1940510.5433/1679-0359.2015v36n6p3863Semina: Ciências Agrárias; Vol. 36 No. 6 (2015); 3863-3876Semina: Ciências Agrárias; v. 36 n. 6 (2015); 3863-38761679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19405/17516http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessCosta, João Paulo RamosSilva, Wilton Ladeira daPaula, Gregory Caputti deTsuzukibashi, DeniseMalheiros, Euclides BragaRuggieri, Ana CláudiaNegrão, João Alberto2022-12-05T11:53:03Zoai:ojs.pkp.sfu.ca:article/19405Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-12-05T11:53:03Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
The effect of grazing intensity and supplementation on performance, stress indicators and metabolic profiles of finishing lambs Efeito de intensidade de pastejo e suplementação no desempenho, indicadores de estresse e perfil metabólico de cordeiros em terminação |
title |
The effect of grazing intensity and supplementation on performance, stress indicators and metabolic profiles of finishing lambs |
spellingShingle |
The effect of grazing intensity and supplementation on performance, stress indicators and metabolic profiles of finishing lambs Costa, João Paulo Ramos Blood parameters Cortisol Energy metabolism Ovine Pasture Protein metabolism. Cortisol Metabolismo energético Metabolismo protéico Ovino Parâmetros sanguíneos Pasto. |
title_short |
The effect of grazing intensity and supplementation on performance, stress indicators and metabolic profiles of finishing lambs |
title_full |
The effect of grazing intensity and supplementation on performance, stress indicators and metabolic profiles of finishing lambs |
title_fullStr |
The effect of grazing intensity and supplementation on performance, stress indicators and metabolic profiles of finishing lambs |
title_full_unstemmed |
The effect of grazing intensity and supplementation on performance, stress indicators and metabolic profiles of finishing lambs |
title_sort |
The effect of grazing intensity and supplementation on performance, stress indicators and metabolic profiles of finishing lambs |
author |
Costa, João Paulo Ramos |
author_facet |
Costa, João Paulo Ramos Silva, Wilton Ladeira da Paula, Gregory Caputti de Tsuzukibashi, Denise Malheiros, Euclides Braga Ruggieri, Ana Cláudia Negrão, João Alberto |
author_role |
author |
author2 |
Silva, Wilton Ladeira da Paula, Gregory Caputti de Tsuzukibashi, Denise Malheiros, Euclides Braga Ruggieri, Ana Cláudia Negrão, João Alberto |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Costa, João Paulo Ramos Silva, Wilton Ladeira da Paula, Gregory Caputti de Tsuzukibashi, Denise Malheiros, Euclides Braga Ruggieri, Ana Cláudia Negrão, João Alberto |
dc.subject.por.fl_str_mv |
Blood parameters Cortisol Energy metabolism Ovine Pasture Protein metabolism. Cortisol Metabolismo energético Metabolismo protéico Ovino Parâmetros sanguíneos Pasto. |
topic |
Blood parameters Cortisol Energy metabolism Ovine Pasture Protein metabolism. Cortisol Metabolismo energético Metabolismo protéico Ovino Parâmetros sanguíneos Pasto. |
description |
In the present study, the effect of grazing intensity (GI) and feed supplementation in sixty-four crossbred Santa Inês lambs was assessed based on performance, blood stress indicators, and metabolic profiles. The GIs analyzed were VH = very high, H = high, L = low, and VL = very low, and were represented by the residual leaf area index (LAIr). The lambs were divided into two groups, supplemented (SP) and non-supplemented (NSP). The dry matter intake (DMI) and average daily gain (ADG) increased linearly with decreasing GI (P < 0.05), and the ADG was higher for the NSP group than the SP group (P < 0.05). The plasma cortisol concentration was higher in the NSP group (P < 0.05), and it was not affected by GIs (P > 0.05). The neutrophil:lymphocyte (N:L) ratio decreased linearly with GI (P < 0.05), and the SP group had a higher N:L ratio (P < 0.05). None of the parameters evaluated for protein metabolism were affected by GI (P > 0.05), except albumin, where the SP group had a higher concentration of this metabolite (P < 0.05). Regarding energy metabolism indicators, glucose showed a linear increase with a decrease in GI (P < 0.05) and was higher in the SP group (P < 0.05); however, there was a decreasing linear effect (P < 0.05) and the NSP group had higher serum levels (P < 0.05) of non-esterified fatty acids (NEFA). The concentration of beta hydroxybutyrate (HBA-B) was higher in the SP group (P < 0.05). The concentration of calcium was affected by GI (P < 0.05). The phosphorus concentration was higher in the SP group (P < 0.05), and concentration of magnesium was not affected by any of the treatments (P > 0.05). It was concluded that GI and SP modified the performance, stress indicators, and metabolic profiles of finishing lambs. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-09 |
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19405 10.5433/1679-0359.2015v36n6p3863 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19405 |
identifier_str_mv |
10.5433/1679-0359.2015v36n6p3863 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19405/17516 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 36 No. 6 (2015); 3863-3876 Semina: Ciências Agrárias; v. 36 n. 6 (2015); 3863-3876 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306072719097856 |