Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves

Detalhes bibliográficos
Autor(a) principal: Leão, Aloma Eiterer
Data de Publicação: 2020
Outros Autores: Coelho, Sandra Gesteira, Azevedo, Rafael Alves, Campos, Mariana Magalhães, Machado, Fernanda Samarini, Laguna, Juliana Guimarães, Ferreira, Alexandre Lima, Pereira, Luiz Gustavo Ribeiro, Tomich, Thierry Ribeiro, Costa, Suely de Fátima, Machado, Marco Antônio, Reis, Daniele Ribeiro de Lima
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/43209
Resumo: The objective of this study was to evaluate the effect of the physical form of starter and inclusion of hay in the diet of preweaning dairy calves on performance, digestibility, ruminal development, and mRNA expression of genes involved in ruminal metabolism. Holstein × Gyr crossbred male calves (n = 38 1day old) were assigned to 3 treatments for 9 weeks: Control (n = 13; pellet starter with 4 mm diameter and 18 mm length and 4% steam-flaked corn), Ground (n = 12; same starter of the control but ground pass through a 4.0 mm sieve), or Ground plus 5% chopped Tifton hay GH (n = 13). All calves were fed 4 L/d of whole milk up to 63 d of age and were abruptly weaned at 64 d of age. Water and diets were offered ad libitum. Samples of ruminal contents were obtained from all animals at 30, 45, and 60 d of age to evaluate pH, ammonia nitrogen, and volatile fatty acids (VFA). At 55 d of age, an apparent digestibility assay was performed using 18 animals (n = 6/ treatment). At 65 d of age, the 18 animals were euthanized to evaluate the development of the digestive tract. The physical form of starter and the dietary inclusion of hay did not influence starter intake (Control 326 g/d, Ground 314 g/d and GH 365 g/d), daily weight gain (Control 541g/d, Ground 531g/d and GH 606g/d), feed efficiency, apparent nutrient digestibility, energy partitioning, nitrogen balance, ruminal pH, ammonia nitrogen concentration, VFA, the development of the digestive tract and the mRNA expression of genes involved in AGV metabolism.
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spelling Effect of pelleted vs. ground starter with or without hay on preweaned dairy calvesCalves - NutritionRuminal metabolismDigestive tractDigestibilityBezerros leiteirosMetabolismo ruminalTrato digestivoDigestibilidadeThe objective of this study was to evaluate the effect of the physical form of starter and inclusion of hay in the diet of preweaning dairy calves on performance, digestibility, ruminal development, and mRNA expression of genes involved in ruminal metabolism. Holstein × Gyr crossbred male calves (n = 38 1day old) were assigned to 3 treatments for 9 weeks: Control (n = 13; pellet starter with 4 mm diameter and 18 mm length and 4% steam-flaked corn), Ground (n = 12; same starter of the control but ground pass through a 4.0 mm sieve), or Ground plus 5% chopped Tifton hay GH (n = 13). All calves were fed 4 L/d of whole milk up to 63 d of age and were abruptly weaned at 64 d of age. Water and diets were offered ad libitum. Samples of ruminal contents were obtained from all animals at 30, 45, and 60 d of age to evaluate pH, ammonia nitrogen, and volatile fatty acids (VFA). At 55 d of age, an apparent digestibility assay was performed using 18 animals (n = 6/ treatment). At 65 d of age, the 18 animals were euthanized to evaluate the development of the digestive tract. The physical form of starter and the dietary inclusion of hay did not influence starter intake (Control 326 g/d, Ground 314 g/d and GH 365 g/d), daily weight gain (Control 541g/d, Ground 531g/d and GH 606g/d), feed efficiency, apparent nutrient digestibility, energy partitioning, nitrogen balance, ruminal pH, ammonia nitrogen concentration, VFA, the development of the digestive tract and the mRNA expression of genes involved in AGV metabolism.PLOS2020-09-25T19:23:58Z2020-09-25T19:23:58Z2020-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLEÃO, A. E. et al. Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves. PLoS ONE, San Francisco, v. 15, n. 7, e0234610, 2020. DOI: https://doi.org/10.1371/journal.pone.0234610.http://repositorio.ufla.br/jspui/handle/1/43209Plos Onereponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessLeão, Aloma EitererCoelho, Sandra GesteiraAzevedo, Rafael AlvesCampos, Mariana MagalhãesMachado, Fernanda SamariniLaguna, Juliana GuimarãesFerreira, Alexandre LimaPereira, Luiz Gustavo RibeiroTomich, Thierry RibeiroCosta, Suely de FátimaMachado, Marco AntônioReis, Daniele Ribeiro de Limaeng2020-09-25T19:24:57Zoai:localhost:1/43209Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-09-25T19:24:57Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves
title Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves
spellingShingle Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves
Leão, Aloma Eiterer
Calves - Nutrition
Ruminal metabolism
Digestive tract
Digestibility
Bezerros leiteiros
Metabolismo ruminal
Trato digestivo
Digestibilidade
title_short Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves
title_full Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves
title_fullStr Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves
title_full_unstemmed Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves
title_sort Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves
author Leão, Aloma Eiterer
author_facet Leão, Aloma Eiterer
Coelho, Sandra Gesteira
Azevedo, Rafael Alves
Campos, Mariana Magalhães
Machado, Fernanda Samarini
Laguna, Juliana Guimarães
Ferreira, Alexandre Lima
Pereira, Luiz Gustavo Ribeiro
Tomich, Thierry Ribeiro
Costa, Suely de Fátima
Machado, Marco Antônio
Reis, Daniele Ribeiro de Lima
author_role author
author2 Coelho, Sandra Gesteira
Azevedo, Rafael Alves
Campos, Mariana Magalhães
Machado, Fernanda Samarini
Laguna, Juliana Guimarães
Ferreira, Alexandre Lima
Pereira, Luiz Gustavo Ribeiro
Tomich, Thierry Ribeiro
Costa, Suely de Fátima
Machado, Marco Antônio
Reis, Daniele Ribeiro de Lima
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Leão, Aloma Eiterer
Coelho, Sandra Gesteira
Azevedo, Rafael Alves
Campos, Mariana Magalhães
Machado, Fernanda Samarini
Laguna, Juliana Guimarães
Ferreira, Alexandre Lima
Pereira, Luiz Gustavo Ribeiro
Tomich, Thierry Ribeiro
Costa, Suely de Fátima
Machado, Marco Antônio
Reis, Daniele Ribeiro de Lima
dc.subject.por.fl_str_mv Calves - Nutrition
Ruminal metabolism
Digestive tract
Digestibility
Bezerros leiteiros
Metabolismo ruminal
Trato digestivo
Digestibilidade
topic Calves - Nutrition
Ruminal metabolism
Digestive tract
Digestibility
Bezerros leiteiros
Metabolismo ruminal
Trato digestivo
Digestibilidade
description The objective of this study was to evaluate the effect of the physical form of starter and inclusion of hay in the diet of preweaning dairy calves on performance, digestibility, ruminal development, and mRNA expression of genes involved in ruminal metabolism. Holstein × Gyr crossbred male calves (n = 38 1day old) were assigned to 3 treatments for 9 weeks: Control (n = 13; pellet starter with 4 mm diameter and 18 mm length and 4% steam-flaked corn), Ground (n = 12; same starter of the control but ground pass through a 4.0 mm sieve), or Ground plus 5% chopped Tifton hay GH (n = 13). All calves were fed 4 L/d of whole milk up to 63 d of age and were abruptly weaned at 64 d of age. Water and diets were offered ad libitum. Samples of ruminal contents were obtained from all animals at 30, 45, and 60 d of age to evaluate pH, ammonia nitrogen, and volatile fatty acids (VFA). At 55 d of age, an apparent digestibility assay was performed using 18 animals (n = 6/ treatment). At 65 d of age, the 18 animals were euthanized to evaluate the development of the digestive tract. The physical form of starter and the dietary inclusion of hay did not influence starter intake (Control 326 g/d, Ground 314 g/d and GH 365 g/d), daily weight gain (Control 541g/d, Ground 531g/d and GH 606g/d), feed efficiency, apparent nutrient digestibility, energy partitioning, nitrogen balance, ruminal pH, ammonia nitrogen concentration, VFA, the development of the digestive tract and the mRNA expression of genes involved in AGV metabolism.
publishDate 2020
dc.date.none.fl_str_mv 2020-09-25T19:23:58Z
2020-09-25T19:23:58Z
2020-07
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 LEÃO, A. E. et al. Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves. PLoS ONE, San Francisco, v. 15, n. 7, e0234610, 2020. DOI: https://doi.org/10.1371/journal.pone.0234610.
http://repositorio.ufla.br/jspui/handle/1/43209
identifier_str_mv LEÃO, A. E. et al. Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves. PLoS ONE, San Francisco, v. 15, n. 7, e0234610, 2020. DOI: https://doi.org/10.1371/journal.pone.0234610.
url http://repositorio.ufla.br/jspui/handle/1/43209
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv PLOS
publisher.none.fl_str_mv PLOS
dc.source.none.fl_str_mv Plos One
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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