Feed efficiency and meat quality of crossbred beef heifers classified according to residual feed intake
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
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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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 |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402015000300632 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402015000300632 |
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 |
eu_rights_str_mv |
openAccess |
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) instacron:UFBA |
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) |
repository.mail.fl_str_mv |
||rbspa@ufba.br |
_version_ |
1750297507678650368 |