Apparent digestibility and ingestive behavior of Nellore bulls with low and high residual feed intake

Detalhes bibliográficos
Autor(a) principal: Menezes, Rayanne Galdino
Data de Publicação: 2022
Outros Autores: Fernandes, Juliano Jose de Resende, Di Calaca, Alana Maria Menezas, Arnhold, Emmanuel, Fernandes, Marcia Helena Machado da Rocha [UNESP], Couto, Victor Rezende Moreira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/s11250-022-03305-5
http://hdl.handle.net/11449/237694
Resumo: The objective of this study was to determine the correlation between ingestive behavior, apparent digestibility, and residual feed intake (RFI) of finishing Nellore bulls fed a high concentrate diet. One hundred and twenty Nellore bulls, housed in individual pens, were evaluated in individual performance tests. The animals were fed a high concentrate diet (23:77 roughage/concentrate ratio). The animals were classified as low RFI, medium RFI, and high RFI. Data from ten animals from each group were used. Fecal production and nutrient digestibility were calculated using indigestible neutral detergent fiber as an internal marker. The feeding behavior was evaluated over 24 h by direct observation every 5 min. The most efficient animals (low RFI, 8.58 kg DM/day) consumed 27.62% less feed than the least efficient animals (high RFI, 10.95 kg DM/day). Animals with medium efficiency (mean RFI, 9.49 kg DM/day) consumed 15.39% less than high RFI. Nutrient digestibility coefficients were similar except for ether extract (P < 0.03) which was 8% greater for the high-RFI animals. No effect was observed for ingestive behavior (P > 0.05). Animals spent, on average, 3 h 28 min feeding, 7 h 32 min ruminating, and 13 h 40 min in idle time. In the present study, ingestive behavior and dry matter digestibility were not responsible for between-animal variation in residual feed intake in Nellore bulls fed a high concentrate diet.
id UNSP_eccd0d955cb61c9f5fc629f76cc45588
oai_identifier_str oai:repositorio.unesp.br:11449/237694
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Apparent digestibility and ingestive behavior of Nellore bulls with low and high residual feed intakeBeef cattleIngestive behaviorFeed efficiencyDigestibilityRFIThe objective of this study was to determine the correlation between ingestive behavior, apparent digestibility, and residual feed intake (RFI) of finishing Nellore bulls fed a high concentrate diet. One hundred and twenty Nellore bulls, housed in individual pens, were evaluated in individual performance tests. The animals were fed a high concentrate diet (23:77 roughage/concentrate ratio). The animals were classified as low RFI, medium RFI, and high RFI. Data from ten animals from each group were used. Fecal production and nutrient digestibility were calculated using indigestible neutral detergent fiber as an internal marker. The feeding behavior was evaluated over 24 h by direct observation every 5 min. The most efficient animals (low RFI, 8.58 kg DM/day) consumed 27.62% less feed than the least efficient animals (high RFI, 10.95 kg DM/day). Animals with medium efficiency (mean RFI, 9.49 kg DM/day) consumed 15.39% less than high RFI. Nutrient digestibility coefficients were similar except for ether extract (P < 0.03) which was 8% greater for the high-RFI animals. No effect was observed for ingestive behavior (P > 0.05). Animals spent, on average, 3 h 28 min feeding, 7 h 32 min ruminating, and 13 h 40 min in idle time. In the present study, ingestive behavior and dry matter digestibility were not responsible for between-animal variation in residual feed intake in Nellore bulls fed a high concentrate diet.Nelore QualitasUniv Fed Goias, Dept Anim Sci, Av Esperanca, Goiania, Go, BrazilUniv Estadual Paulista, Dept Anim Sci, Jaboticabal, SP, BrazilUniv Estadual Paulista, Dept Anim Sci, Jaboticabal, SP, BrazilSpringerUniversidade Federal de Goiás (UFG)Universidade Estadual Paulista (UNESP)Menezes, Rayanne GaldinoFernandes, Juliano Jose de ResendeDi Calaca, Alana Maria MenezasArnhold, EmmanuelFernandes, Marcia Helena Machado da Rocha [UNESP]Couto, Victor Rezende Moreira2022-11-30T13:42:11Z2022-11-30T13:42:11Z2022-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article7http://dx.doi.org/10.1007/s11250-022-03305-5Tropical Animal Health And Production. Dordrecht: Springer, v. 54, n. 5, 7 p., 2022.0049-4747http://hdl.handle.net/11449/23769410.1007/s11250-022-03305-5WOS:000853425800002Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTropical Animal Health And Productioninfo:eu-repo/semantics/openAccess2022-11-30T13:42:12Zoai:repositorio.unesp.br:11449/237694Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:03:27.599329Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Apparent digestibility and ingestive behavior of Nellore bulls with low and high residual feed intake
title Apparent digestibility and ingestive behavior of Nellore bulls with low and high residual feed intake
spellingShingle Apparent digestibility and ingestive behavior of Nellore bulls with low and high residual feed intake
Menezes, Rayanne Galdino
Beef cattle
Ingestive behavior
Feed efficiency
Digestibility
RFI
title_short Apparent digestibility and ingestive behavior of Nellore bulls with low and high residual feed intake
title_full Apparent digestibility and ingestive behavior of Nellore bulls with low and high residual feed intake
title_fullStr Apparent digestibility and ingestive behavior of Nellore bulls with low and high residual feed intake
title_full_unstemmed Apparent digestibility and ingestive behavior of Nellore bulls with low and high residual feed intake
title_sort Apparent digestibility and ingestive behavior of Nellore bulls with low and high residual feed intake
author Menezes, Rayanne Galdino
author_facet Menezes, Rayanne Galdino
Fernandes, Juliano Jose de Resende
Di Calaca, Alana Maria Menezas
Arnhold, Emmanuel
Fernandes, Marcia Helena Machado da Rocha [UNESP]
Couto, Victor Rezende Moreira
author_role author
author2 Fernandes, Juliano Jose de Resende
Di Calaca, Alana Maria Menezas
Arnhold, Emmanuel
Fernandes, Marcia Helena Machado da Rocha [UNESP]
Couto, Victor Rezende Moreira
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal de Goiás (UFG)
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Menezes, Rayanne Galdino
Fernandes, Juliano Jose de Resende
Di Calaca, Alana Maria Menezas
Arnhold, Emmanuel
Fernandes, Marcia Helena Machado da Rocha [UNESP]
Couto, Victor Rezende Moreira
dc.subject.por.fl_str_mv Beef cattle
Ingestive behavior
Feed efficiency
Digestibility
RFI
topic Beef cattle
Ingestive behavior
Feed efficiency
Digestibility
RFI
description The objective of this study was to determine the correlation between ingestive behavior, apparent digestibility, and residual feed intake (RFI) of finishing Nellore bulls fed a high concentrate diet. One hundred and twenty Nellore bulls, housed in individual pens, were evaluated in individual performance tests. The animals were fed a high concentrate diet (23:77 roughage/concentrate ratio). The animals were classified as low RFI, medium RFI, and high RFI. Data from ten animals from each group were used. Fecal production and nutrient digestibility were calculated using indigestible neutral detergent fiber as an internal marker. The feeding behavior was evaluated over 24 h by direct observation every 5 min. The most efficient animals (low RFI, 8.58 kg DM/day) consumed 27.62% less feed than the least efficient animals (high RFI, 10.95 kg DM/day). Animals with medium efficiency (mean RFI, 9.49 kg DM/day) consumed 15.39% less than high RFI. Nutrient digestibility coefficients were similar except for ether extract (P < 0.03) which was 8% greater for the high-RFI animals. No effect was observed for ingestive behavior (P > 0.05). Animals spent, on average, 3 h 28 min feeding, 7 h 32 min ruminating, and 13 h 40 min in idle time. In the present study, ingestive behavior and dry matter digestibility were not responsible for between-animal variation in residual feed intake in Nellore bulls fed a high concentrate diet.
publishDate 2022
dc.date.none.fl_str_mv 2022-11-30T13:42:11Z
2022-11-30T13:42:11Z
2022-10-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/s11250-022-03305-5
Tropical Animal Health And Production. Dordrecht: Springer, v. 54, n. 5, 7 p., 2022.
0049-4747
http://hdl.handle.net/11449/237694
10.1007/s11250-022-03305-5
WOS:000853425800002
url http://dx.doi.org/10.1007/s11250-022-03305-5
http://hdl.handle.net/11449/237694
identifier_str_mv Tropical Animal Health And Production. Dordrecht: Springer, v. 54, n. 5, 7 p., 2022.
0049-4747
10.1007/s11250-022-03305-5
WOS:000853425800002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Tropical Animal Health And Production
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 7
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129279253282816

Registros relacionados