Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
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/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. |
id |
UEL-11_674d7b3e4fb84f46a78f2d220b77fbba |
---|---|
oai_identifier_str |
oai:ojs.pkp.sfu.ca:article/25148 |
network_acronym_str |
UEL-11 |
network_name_str |
Semina. Ciências Agrárias (Online) |
repository_id_str |
|
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 |
_version_ |
1799306075742142464 |