Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle

Detalhes bibliográficos
Autor(a) principal: Homem Junior, Antonio Carlos
Data de Publicação: 2016
Outros Autores: Chiquitelli Neto, Marcos, Pinheiro, Rafael Silvio Bonilha, Koury Filho, William, Estremote, Marcelo, Camerro, Leandro Zuccherato, Donofre, Ana Carolina, Puoli Filho, José Nicolau Prospero
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/25148
Resumo: The goal of this study was evaluate diets (50 or 80% of concentrate) and body biotypes (late or early) on performance, behavior, carcass condition, meat quality, and feed cost estimates in feedlot finishing Guzera beef cattle. Use of concentrates in the diet may improve performance and carcass fat scores in ruminant animals, but Guzera beef cattle may be more efficient in forage conversion, which directly influences the economic viability of the production system. We evaluated 32 non-castrated male Guzera beef cattle at 32±2 months of age. The experimental design was completely randomized with four treatments and six replicates in a 2 × 2 factorial design (2 diets × 2 body biotypes). Initial and final body weights were 459.4±31.2 kg and 566.7±40.8 kg, respectively. There was no change (P > 0.05) in dry matter intake, feed conversion, or daily weight gain when the concentrate in the diet was increased to 80%. Animals fed a diet with 80% of concentrate spent less time (P < 0.05) ruminating (17.8±6.3 vs. 6.3±2.7% of the assessed time). Body biotype did not alter the variables. The rise from 50 to 80% in the proportion of dietary concentrate increased carcass fat, with positive returns in the production process, even given the reduction in rumination, which can lead to poor welfare of animals consuming 80% of dietary concentrate. Body biotype did not affect the variables studied, but it is worth emphasizing that the age at slaughter of these animals probably influenced this result. Thus, selection of the best diet should be based on feeding cost, and in accordance with the cost estimated in this study, the diet with 80% of concentrate is the most suitable for feedlot finished Guzera beef cattle.
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spelling Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattleInfluência do nível de concentrado na dieta e do biotipo corporal sobre variáveis produtivas de bovinos de corte da raça GuzeráBehaviorCarcassCostsFeedlotMeat qualityPerformance.CarcaçaConfinamentoComportamentoDesempenhoCustosQualidade de carne.The goal of this study was evaluate diets (50 or 80% of concentrate) and body biotypes (late or early) on performance, behavior, carcass condition, meat quality, and feed cost estimates in feedlot finishing Guzera beef cattle. Use of concentrates in the diet may improve performance and carcass fat scores in ruminant animals, but Guzera beef cattle may be more efficient in forage conversion, which directly influences the economic viability of the production system. We evaluated 32 non-castrated male Guzera beef cattle at 32±2 months of age. The experimental design was completely randomized with four treatments and six replicates in a 2 × 2 factorial design (2 diets × 2 body biotypes). Initial and final body weights were 459.4±31.2 kg and 566.7±40.8 kg, respectively. There was no change (P > 0.05) in dry matter intake, feed conversion, or daily weight gain when the concentrate in the diet was increased to 80%. Animals fed a diet with 80% of concentrate spent less time (P < 0.05) ruminating (17.8±6.3 vs. 6.3±2.7% of the assessed time). Body biotype did not alter the variables. The rise from 50 to 80% in the proportion of dietary concentrate increased carcass fat, with positive returns in the production process, even given the reduction in rumination, which can lead to poor welfare of animals consuming 80% of dietary concentrate. Body biotype did not affect the variables studied, but it is worth emphasizing that the age at slaughter of these animals probably influenced this result. Thus, selection of the best diet should be based on feeding cost, and in accordance with the cost estimated in this study, the diet with 80% of concentrate is the most suitable for feedlot finished Guzera beef cattle.O objetivo deste estudo foi avaliar a dieta (50 ou 80% de concentrado) e o biótipo corporal (precoce ou tardio) sobre o desempenho, comportamento, carcaça, qualidade de carne e estimativas de custos com alimento na terminação de bovinos de corte da raça Guzerá confinados. Aumentar os níveis de concentrado na dieta pode melhorar o desempenho e a gordura na carcaça em animais ruminantes, porém animais de corte da raça Guzerá podem ser mais eficientes na conversão de forragem, o que influenciaria diretamente a viabilidade econômica do sistema de produção. Foram utilizados 32 bovinos de corte da raça Guzerá, machos não castrados com 32±2 meses de idade. O delineamento experimental foi inteiramente casualizado com 4 tratamentos e 6 repetições, em esquema fatorial 2x2 (2 dietas x 2 biótipos corporais). O peso corporal inicial e final foi de 459,4±31,2 kg e 566,7±40,8 kg, respectivamente. Não houve alteração (P > 0,05) no consumo de matéria seca, conversão alimentar e ganho de peso diário pelo aumento de 80% de concentrado na dieta. Animais alimentados com 80% de concentrado na dieta passou um tempo menor (P < 0,05) em ruminação (17,8±6,3 vs 6,3±2,7% do tempo avaliado). O biótipo corporal não modificou (P > 0,05) as variáveis estudadas. O aumento de 50 para 80% na proporção de concentrado na dieta aumenta a gordura na carcaça, com retorno positivo no processo de produção, mesmo com uma redução de ruminação, o que pode levar a uma redução no bem-estar nos animais que consomem 80% de concentrado na dieta. O biótipo corporal não afeta as variáveis estudadas, mas é importante ressaltar que a idade de abate desses animais pode, provavelmente, ter influenciado essa resposta. Neste sentido, para escolha da dieta deve-se considerar o custo de alimentação, e de acordo com o custo estimado neste estudo, a dieta com 80% de concentrado é mais adequada para o abate de bovinos de corte da raça Guzerá.UEL2016-12-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2514810.5433/1679-0359.2016v37n6p4305Semina: Ciências Agrárias; Vol. 37 No. 6 (2016); 4305-4312Semina: Ciências Agrárias; v. 37 n. 6 (2016); 4305-43121679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25148/20085Copyright (c) 2016 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessHomem Junior, Antonio CarlosChiquitelli Neto, MarcosPinheiro, Rafael Silvio BonilhaKoury Filho, WilliamEstremote, MarceloCamerro, Leandro ZuccheratoDonofre, Ana CarolinaPuoli Filho, José Nicolau Prospero2022-11-29T16:21:14Zoai:ojs.pkp.sfu.ca:article/25148Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-11-29T16:21:14Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle
Influência do nível de concentrado na dieta e do biotipo corporal sobre variáveis produtivas de bovinos de corte da raça Guzerá
title Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle
spellingShingle Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle
Homem Junior, Antonio Carlos
Behavior
Carcass
Costs
Feedlot
Meat quality
Performance.
Carcaça
Confinamento
Comportamento
Desempenho
Custos
Qualidade de carne.
title_short Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle
title_full Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle
title_fullStr Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle
title_full_unstemmed Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle
title_sort Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle
author Homem Junior, Antonio Carlos
author_facet Homem Junior, Antonio Carlos
Chiquitelli Neto, Marcos
Pinheiro, Rafael Silvio Bonilha
Koury Filho, William
Estremote, Marcelo
Camerro, Leandro Zuccherato
Donofre, Ana Carolina
Puoli Filho, José Nicolau Prospero
author_role author
author2 Chiquitelli Neto, Marcos
Pinheiro, Rafael Silvio Bonilha
Koury Filho, William
Estremote, Marcelo
Camerro, Leandro Zuccherato
Donofre, Ana Carolina
Puoli Filho, José Nicolau Prospero
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Homem Junior, Antonio Carlos
Chiquitelli Neto, Marcos
Pinheiro, Rafael Silvio Bonilha
Koury Filho, William
Estremote, Marcelo
Camerro, Leandro Zuccherato
Donofre, Ana Carolina
Puoli Filho, José Nicolau Prospero
dc.subject.por.fl_str_mv Behavior
Carcass
Costs
Feedlot
Meat quality
Performance.
Carcaça
Confinamento
Comportamento
Desempenho
Custos
Qualidade de carne.
topic Behavior
Carcass
Costs
Feedlot
Meat quality
Performance.
Carcaça
Confinamento
Comportamento
Desempenho
Custos
Qualidade de carne.
description The goal of this study was evaluate diets (50 or 80% of concentrate) and body biotypes (late or early) on performance, behavior, carcass condition, meat quality, and feed cost estimates in feedlot finishing Guzera beef cattle. Use of concentrates in the diet may improve performance and carcass fat scores in ruminant animals, but Guzera beef cattle may be more efficient in forage conversion, which directly influences the economic viability of the production system. We evaluated 32 non-castrated male Guzera beef cattle at 32±2 months of age. The experimental design was completely randomized with four treatments and six replicates in a 2 × 2 factorial design (2 diets × 2 body biotypes). Initial and final body weights were 459.4±31.2 kg and 566.7±40.8 kg, respectively. There was no change (P > 0.05) in dry matter intake, feed conversion, or daily weight gain when the concentrate in the diet was increased to 80%. Animals fed a diet with 80% of concentrate spent less time (P < 0.05) ruminating (17.8±6.3 vs. 6.3±2.7% of the assessed time). Body biotype did not alter the variables. The rise from 50 to 80% in the proportion of dietary concentrate increased carcass fat, with positive returns in the production process, even given the reduction in rumination, which can lead to poor welfare of animals consuming 80% of dietary concentrate. Body biotype did not affect the variables studied, but it is worth emphasizing that the age at slaughter of these animals probably influenced this result. Thus, selection of the best diet should be based on feeding cost, and in accordance with the cost estimated in this study, the diet with 80% of concentrate is the most suitable for feedlot finished Guzera beef cattle.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-14
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/25148
10.5433/1679-0359.2016v37n6p4305
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25148
identifier_str_mv 10.5433/1679-0359.2016v37n6p4305
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/25148/20085
dc.rights.driver.fl_str_mv Copyright (c) 2016 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2016 Semina: Ciências Agrárias
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. 37 No. 6 (2016); 4305-4312
Semina: Ciências Agrárias; v. 37 n. 6 (2016); 4305-4312
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
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