Feed efficiency and meat quality of crossbred beef heifers classified according to residual feed intake

Detalhes bibliográficos
Autor(a) principal: REIS,Simone Frotas dos
Data de Publicação: 2015
Outros Autores: FAUSTO,Daiane Aparecida, MEDEIROS,Sergio Raposo de, PAULINO,Pedro Veiga Rodrigues, VALADARES FILHO,Sebastião de Campos, TORRES JÚNIOR,Roberto Augusto de Almeida
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Saúde e Produção Animal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402015000300632
Resumo: AbstractThis study aimed to evaluate feed efficiency and meat quality of 31 three-crossbred beef heifers during 84 days in a feedlot system. A 60:40 concentrate and sorghum silage ration on DM basis (ME = 2.73Mcal/kg of DM, CP = 11.90% DM) was fed ad libitum. Based on residual feed intake (RFI) calculations, the heifers were ranked in three groups of feed efficiency: High RFI (average mean = 0.776; n = 9), medium RFI (average mean = -0.010; n = 11), and low RFI (average mean = - 0.624; n = 11). High RFI heifers consumed 4.56% more DM per day than low RFI heifers (P <0.05). The ADG did not differ (P> 0.05) among RFI groups (1.40kg/day). No differences (P>0.05) were detected for digestibility of the nutrients: DM (64.00%), CP (60.01%), crude fat (72.90%), NDF (54.80%) and non-fibrous carbohydrate (NFC) (78.91%). There were no differences between low and high RFI groups for slaughter weight (475.00 vs. 479.55kg), hot carcass weight (259.09 vs. 261.44kg), Longissimus dorsi (LD) area (69.02 vs. 68.11 cm2), back-fat thickness (5.74 vs. 6.26 cm), shear force (5.45 vs. 5.19kg), sensorial traits of LD muscle, LD color (intensities L=40.47 a*=24.74 and b*=16.13) or commercial cuts yield. Low RFI heifers presented similar meat quality and carcass traits as high RFI heifers, however low RFI heifers consumed less DM (kg/d).
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spelling Feed efficiency and meat quality of crossbred beef heifers classified according to residual feed intakebeef cattlecarcass evaluationnet feed intakeshear forceAbstractThis study aimed to evaluate feed efficiency and meat quality of 31 three-crossbred beef heifers during 84 days in a feedlot system. A 60:40 concentrate and sorghum silage ration on DM basis (ME = 2.73Mcal/kg of DM, CP = 11.90% DM) was fed ad libitum. Based on residual feed intake (RFI) calculations, the heifers were ranked in three groups of feed efficiency: High RFI (average mean = 0.776; n = 9), medium RFI (average mean = -0.010; n = 11), and low RFI (average mean = - 0.624; n = 11). High RFI heifers consumed 4.56% more DM per day than low RFI heifers (P <0.05). The ADG did not differ (P> 0.05) among RFI groups (1.40kg/day). No differences (P>0.05) were detected for digestibility of the nutrients: DM (64.00%), CP (60.01%), crude fat (72.90%), NDF (54.80%) and non-fibrous carbohydrate (NFC) (78.91%). There were no differences between low and high RFI groups for slaughter weight (475.00 vs. 479.55kg), hot carcass weight (259.09 vs. 261.44kg), Longissimus dorsi (LD) area (69.02 vs. 68.11 cm2), back-fat thickness (5.74 vs. 6.26 cm), shear force (5.45 vs. 5.19kg), sensorial traits of LD muscle, LD color (intensities L=40.47 a*=24.74 and b*=16.13) or commercial cuts yield. Low RFI heifers presented similar meat quality and carcass traits as high RFI heifers, however low RFI heifers consumed less DM (kg/d).UFBA - Universidade Federal da Bahia2015-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402015000300632Revista Brasileira de Saúde e Produção Animal v.16 n.3 2015reponame:Revista Brasileira de Saúde e Produção Animalinstname:Universidade Federal da Bahia (UFBA)instacron:UFBA10.1590/S1519-99402015000300014info:eu-repo/semantics/openAccessREIS,Simone Frotas dosFAUSTO,Daiane AparecidaMEDEIROS,Sergio Raposo dePAULINO,Pedro Veiga RodriguesVALADARES FILHO,Sebastião de CamposTORRES JÚNIOR,Roberto Augusto de Almeidaeng2015-10-27T00:00:00Zoai:scielo:S1519-99402015000300632Revistahttp://www.rbspa.ufba.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||rbspa@ufba.br1519-99401519-9940opendoar:2015-10-27T00:00Revista Brasileira de Saúde e Produção Animal - Universidade Federal da Bahia (UFBA)false
dc.title.none.fl_str_mv Feed efficiency and meat quality of crossbred beef heifers classified according to residual feed intake
title Feed efficiency and meat quality of crossbred beef heifers classified according to residual feed intake
spellingShingle Feed efficiency and meat quality of crossbred beef heifers classified according to residual feed intake
REIS,Simone Frotas dos
beef cattle
carcass evaluation
net feed intake
shear force
title_short Feed efficiency and meat quality of crossbred beef heifers classified according to residual feed intake
title_full Feed efficiency and meat quality of crossbred beef heifers classified according to residual feed intake
title_fullStr Feed efficiency and meat quality of crossbred beef heifers classified according to residual feed intake
title_full_unstemmed Feed efficiency and meat quality of crossbred beef heifers classified according to residual feed intake
title_sort Feed efficiency and meat quality of crossbred beef heifers classified according to residual feed intake
author REIS,Simone Frotas dos
author_facet REIS,Simone Frotas dos
FAUSTO,Daiane Aparecida
MEDEIROS,Sergio Raposo de
PAULINO,Pedro Veiga Rodrigues
VALADARES FILHO,Sebastião de Campos
TORRES JÚNIOR,Roberto Augusto de Almeida
author_role author
author2 FAUSTO,Daiane Aparecida
MEDEIROS,Sergio Raposo de
PAULINO,Pedro Veiga Rodrigues
VALADARES FILHO,Sebastião de Campos
TORRES JÚNIOR,Roberto Augusto de Almeida
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv REIS,Simone Frotas dos
FAUSTO,Daiane Aparecida
MEDEIROS,Sergio Raposo de
PAULINO,Pedro Veiga Rodrigues
VALADARES FILHO,Sebastião de Campos
TORRES JÚNIOR,Roberto Augusto de Almeida
dc.subject.por.fl_str_mv beef cattle
carcass evaluation
net feed intake
shear force
topic beef cattle
carcass evaluation
net feed intake
shear force
description AbstractThis study aimed to evaluate feed efficiency and meat quality of 31 three-crossbred beef heifers during 84 days in a feedlot system. A 60:40 concentrate and sorghum silage ration on DM basis (ME = 2.73Mcal/kg of DM, CP = 11.90% DM) was fed ad libitum. Based on residual feed intake (RFI) calculations, the heifers were ranked in three groups of feed efficiency: High RFI (average mean = 0.776; n = 9), medium RFI (average mean = -0.010; n = 11), and low RFI (average mean = - 0.624; n = 11). High RFI heifers consumed 4.56% more DM per day than low RFI heifers (P <0.05). The ADG did not differ (P> 0.05) among RFI groups (1.40kg/day). No differences (P>0.05) were detected for digestibility of the nutrients: DM (64.00%), CP (60.01%), crude fat (72.90%), NDF (54.80%) and non-fibrous carbohydrate (NFC) (78.91%). There were no differences between low and high RFI groups for slaughter weight (475.00 vs. 479.55kg), hot carcass weight (259.09 vs. 261.44kg), Longissimus dorsi (LD) area (69.02 vs. 68.11 cm2), back-fat thickness (5.74 vs. 6.26 cm), shear force (5.45 vs. 5.19kg), sensorial traits of LD muscle, LD color (intensities L=40.47 a*=24.74 and b*=16.13) or commercial cuts yield. Low RFI heifers presented similar meat quality and carcass traits as high RFI heifers, however low RFI heifers consumed less DM (kg/d).
publishDate 2015
dc.date.none.fl_str_mv 2015-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1519-99402015000300014
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv UFBA - Universidade Federal da Bahia
publisher.none.fl_str_mv UFBA - Universidade Federal da Bahia
dc.source.none.fl_str_mv Revista Brasileira de Saúde e Produção Animal v.16 n.3 2015
reponame:Revista Brasileira de Saúde e Produção Animal
instname:Universidade Federal da Bahia (UFBA)
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instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Revista Brasileira de Saúde e Produção Animal
collection Revista Brasileira de Saúde e Produção Animal
repository.name.fl_str_mv Revista Brasileira de Saúde e Produção Animal - Universidade Federal da Bahia (UFBA)
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