Predicting feedlot cattle performance from intake of dry matter and NEg early in the feeding period

Detalhes bibliográficos
Autor(a) principal: Silvestre, A. M. [UNESP]
Data de Publicação: 2019
Outros Autores: Cruz, G. D., Owens, F. N., Pereira, M. C.S. [UNESP], Hicks, R. B., Millen, D. D. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.livsci.2019.03.007
http://hdl.handle.net/11449/190188
Resumo: The objectives of this study were: 1) To identify which specific week or weeks at the beginning of feeding period was most closely correlated with intake of net energy for gain (NEg) and dry matter (DM) for the full feedlot period of 140–180 d, and 2) to determine how various performance measurements were correlated with intake during this selected time frame. The database was compiled from one commercial feedlot, contained 2,495 pens of steers and 1,637 pens of heifers representing a total of 485,458 animals. Diets had similar composition across a 6 years period. Responses in intake of DM and NEg for the full finishing period were tested separately by including gender, initial body weight (BW) and days on feed as covariates in PROC NLIN of SAS. The PROC CORR was used to determine the correlation between intakes of DM and NEg early in the feedlot period with intake of DM and NEg for the entire finishing period. Intake periods of interest included individual weeks or the combination of weeks 5–12. Among the individual weeks, intakes of DM and NEg during week 7 were correlated most closely with intakes of DM and NEg across the entire finishing period for steers (r = 0.72) and heifers (r = 0.66). Based on mean DM intake during week 7, pens were grouped into quartiles: Top, High, Lower and Lowest. Pens of steers and heifers within the Top ¼ group during week 7 had greater (P < 0.05) final BW and average daily gain (ADG) across the full feeding period than pens of steers and heifers in other quartiles. However, G:F for steers within the Top ¼ group was lower than for pens in the Lower ¼ and Lowest ¼ groups. Pens of cattle within the Lowest ¼ group had more sick head days (P < 0.05) and greater death loss (P < 0.05) than pens of cattle of the Top ¼ group. Pens of cattle within the Top ¼ group had greater (P < 0.05) week-to-week DM intake fluctuation expressed in kg for both steers and heifers. Mean DM intake during week 7 can be utilized as an index to detect pens with the greatest potential of ADG and should help to identify pens with health or management anomalies so that proper corrective actions might be taken.
id UNSP_2c32501148556de26deff00ab8d4b94f
oai_identifier_str oai:repositorio.unesp.br:11449/190188
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Predicting feedlot cattle performance from intake of dry matter and NEg early in the feeding periodDry matter intakeEnergyFeedlotHeifersPerformanceSteersThe objectives of this study were: 1) To identify which specific week or weeks at the beginning of feeding period was most closely correlated with intake of net energy for gain (NEg) and dry matter (DM) for the full feedlot period of 140–180 d, and 2) to determine how various performance measurements were correlated with intake during this selected time frame. The database was compiled from one commercial feedlot, contained 2,495 pens of steers and 1,637 pens of heifers representing a total of 485,458 animals. Diets had similar composition across a 6 years period. Responses in intake of DM and NEg for the full finishing period were tested separately by including gender, initial body weight (BW) and days on feed as covariates in PROC NLIN of SAS. The PROC CORR was used to determine the correlation between intakes of DM and NEg early in the feedlot period with intake of DM and NEg for the entire finishing period. Intake periods of interest included individual weeks or the combination of weeks 5–12. Among the individual weeks, intakes of DM and NEg during week 7 were correlated most closely with intakes of DM and NEg across the entire finishing period for steers (r = 0.72) and heifers (r = 0.66). Based on mean DM intake during week 7, pens were grouped into quartiles: Top, High, Lower and Lowest. Pens of steers and heifers within the Top ¼ group during week 7 had greater (P < 0.05) final BW and average daily gain (ADG) across the full feeding period than pens of steers and heifers in other quartiles. However, G:F for steers within the Top ¼ group was lower than for pens in the Lower ¼ and Lowest ¼ groups. Pens of cattle within the Lowest ¼ group had more sick head days (P < 0.05) and greater death loss (P < 0.05) than pens of cattle of the Top ¼ group. Pens of cattle within the Top ¼ group had greater (P < 0.05) week-to-week DM intake fluctuation expressed in kg for both steers and heifers. Mean DM intake during week 7 can be utilized as an index to detect pens with the greatest potential of ADG and should help to identify pens with health or management anomalies so that proper corrective actions might be taken.São Paulo State University (UNESP) College of Agricultural and Technological SciencesPurina Animal Nutrition LLC, Arden HillsSão Paulo State University (UNESP) School of Veterinary Medicine and Animal ScienceArea Extension Livestock Specialist Oklahoma State UniversitySão Paulo State University (UNESP) College of Agricultural and Technological SciencesSão Paulo State University (UNESP) School of Veterinary Medicine and Animal ScienceUniversidade Estadual Paulista (Unesp)Purina Animal Nutrition LLCOklahoma State UniversitySilvestre, A. M. [UNESP]Cruz, G. D.Owens, F. N.Pereira, M. C.S. [UNESP]Hicks, R. B.Millen, D. D. [UNESP]2019-10-06T17:05:09Z2019-10-06T17:05:09Z2019-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article108-115http://dx.doi.org/10.1016/j.livsci.2019.03.007Livestock Science, v. 223, p. 108-115.1871-1413http://hdl.handle.net/11449/19018810.1016/j.livsci.2019.03.0072-s2.0-85062856079Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLivestock Scienceinfo:eu-repo/semantics/openAccess2024-05-07T13:47:22Zoai:repositorio.unesp.br:11449/190188Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:17:19.534488Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Predicting feedlot cattle performance from intake of dry matter and NEg early in the feeding period
title Predicting feedlot cattle performance from intake of dry matter and NEg early in the feeding period
spellingShingle Predicting feedlot cattle performance from intake of dry matter and NEg early in the feeding period
Silvestre, A. M. [UNESP]
Dry matter intake
Energy
Feedlot
Heifers
Performance
Steers
title_short Predicting feedlot cattle performance from intake of dry matter and NEg early in the feeding period
title_full Predicting feedlot cattle performance from intake of dry matter and NEg early in the feeding period
title_fullStr Predicting feedlot cattle performance from intake of dry matter and NEg early in the feeding period
title_full_unstemmed Predicting feedlot cattle performance from intake of dry matter and NEg early in the feeding period
title_sort Predicting feedlot cattle performance from intake of dry matter and NEg early in the feeding period
author Silvestre, A. M. [UNESP]
author_facet Silvestre, A. M. [UNESP]
Cruz, G. D.
Owens, F. N.
Pereira, M. C.S. [UNESP]
Hicks, R. B.
Millen, D. D. [UNESP]
author_role author
author2 Cruz, G. D.
Owens, F. N.
Pereira, M. C.S. [UNESP]
Hicks, R. B.
Millen, D. D. [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Purina Animal Nutrition LLC
Oklahoma State University
dc.contributor.author.fl_str_mv Silvestre, A. M. [UNESP]
Cruz, G. D.
Owens, F. N.
Pereira, M. C.S. [UNESP]
Hicks, R. B.
Millen, D. D. [UNESP]
dc.subject.por.fl_str_mv Dry matter intake
Energy
Feedlot
Heifers
Performance
Steers
topic Dry matter intake
Energy
Feedlot
Heifers
Performance
Steers
description The objectives of this study were: 1) To identify which specific week or weeks at the beginning of feeding period was most closely correlated with intake of net energy for gain (NEg) and dry matter (DM) for the full feedlot period of 140–180 d, and 2) to determine how various performance measurements were correlated with intake during this selected time frame. The database was compiled from one commercial feedlot, contained 2,495 pens of steers and 1,637 pens of heifers representing a total of 485,458 animals. Diets had similar composition across a 6 years period. Responses in intake of DM and NEg for the full finishing period were tested separately by including gender, initial body weight (BW) and days on feed as covariates in PROC NLIN of SAS. The PROC CORR was used to determine the correlation between intakes of DM and NEg early in the feedlot period with intake of DM and NEg for the entire finishing period. Intake periods of interest included individual weeks or the combination of weeks 5–12. Among the individual weeks, intakes of DM and NEg during week 7 were correlated most closely with intakes of DM and NEg across the entire finishing period for steers (r = 0.72) and heifers (r = 0.66). Based on mean DM intake during week 7, pens were grouped into quartiles: Top, High, Lower and Lowest. Pens of steers and heifers within the Top ¼ group during week 7 had greater (P < 0.05) final BW and average daily gain (ADG) across the full feeding period than pens of steers and heifers in other quartiles. However, G:F for steers within the Top ¼ group was lower than for pens in the Lower ¼ and Lowest ¼ groups. Pens of cattle within the Lowest ¼ group had more sick head days (P < 0.05) and greater death loss (P < 0.05) than pens of cattle of the Top ¼ group. Pens of cattle within the Top ¼ group had greater (P < 0.05) week-to-week DM intake fluctuation expressed in kg for both steers and heifers. Mean DM intake during week 7 can be utilized as an index to detect pens with the greatest potential of ADG and should help to identify pens with health or management anomalies so that proper corrective actions might be taken.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-06T17:05:09Z
2019-10-06T17:05:09Z
2019-05-01
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/10.1016/j.livsci.2019.03.007
Livestock Science, v. 223, p. 108-115.
1871-1413
http://hdl.handle.net/11449/190188
10.1016/j.livsci.2019.03.007
2-s2.0-85062856079
url http://dx.doi.org/10.1016/j.livsci.2019.03.007
http://hdl.handle.net/11449/190188
identifier_str_mv Livestock Science, v. 223, p. 108-115.
1871-1413
10.1016/j.livsci.2019.03.007
2-s2.0-85062856079
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Livestock Science
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 108-115
dc.source.none.fl_str_mv Scopus
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_ 1808128785132814336