Validation of body condition score system in Holstein x Zebu cows via ultrasound method during the transition period and early lactation
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28534 |
Resumo: | This study aims to validate, by means of subcutaneous rump fat thickness (RFT), the suitability of the visual evaluation of body condition score (BCS) to indicate the body condition of crossbred dairy cows (Holstein x Zebu) during the transition period and early lactation. Animals were selected according to lactation period and distributed into three groups: PP (0 to 4 weeks antepartum; n = 30), L4 (0 to 4 weeks postpartum; n = 15), and L + 5 (5 to 14 weeks postpartum; n = 63). The relationship among RFT, BCS, and body weight (BW) was investigated using correlation and regression analyses. The variables BCS, RFT, and BW were different among the three groups (P < 0.05). The correlations between BCS and RFT were higher in groups PP and L + 5 (r = 0.78 and r = 0.71 respectively). However, the L4 group showed a weak correlation (r = -0.04). The regression models were able to explain how much RFT varies because of changes in BCS, with coefficients of determination equal to 0.61 for PP and 0.51 for L + 5 group. In conclusion, BCS can be considered a good predictor of RFT for crossbred Holstein x Zebu cows in antepartum and postpartum for over 5 weeks of lactation. |
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Semina. Ciências Agrárias (Online) |
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Validation of body condition score system in Holstein x Zebu cows via ultrasound method during the transition period and early lactationValidação por ultrassonografia da condição corporal em vacas mestiças Holandês x Zebu durante o período de transição e fase inicial de lactaçãoAntepartumPostpartumEnergy reserveDairy cows.Pré-partoPós-partoReserva de energiaVacas leiteiras.This study aims to validate, by means of subcutaneous rump fat thickness (RFT), the suitability of the visual evaluation of body condition score (BCS) to indicate the body condition of crossbred dairy cows (Holstein x Zebu) during the transition period and early lactation. Animals were selected according to lactation period and distributed into three groups: PP (0 to 4 weeks antepartum; n = 30), L4 (0 to 4 weeks postpartum; n = 15), and L + 5 (5 to 14 weeks postpartum; n = 63). The relationship among RFT, BCS, and body weight (BW) was investigated using correlation and regression analyses. The variables BCS, RFT, and BW were different among the three groups (P < 0.05). The correlations between BCS and RFT were higher in groups PP and L + 5 (r = 0.78 and r = 0.71 respectively). However, the L4 group showed a weak correlation (r = -0.04). The regression models were able to explain how much RFT varies because of changes in BCS, with coefficients of determination equal to 0.61 for PP and 0.51 for L + 5 group. In conclusion, BCS can be considered a good predictor of RFT for crossbred Holstein x Zebu cows in antepartum and postpartum for over 5 weeks of lactation.Objetivou-se verificar por meio da espessura de gordura subcutânea na garupa (EGG) se o método de avaliação visual de escore de condição corporal (ECC) é apropriado para indicar a condição corporal de vacas leiteiras mestiças Holandês x Zebu no período de transição e fase inicial de lactação. Os animais foram selecionados de acordo com estágio de lactação e foram divididos em três grupos: grupo PP (4 a 0 semanapré-parto; n=30); grupo L4 (0 a 4 semanas pós-parto; n = 15); grupo L+5 (5 a 14 semanas pós-parto; n = 63). As variáveis ECC, EGG e BW variaram entre os três grupos (P < 0,05). As correlações entre ECC e EGG foram maiores nos grupos PP e L+5, com r² = 0,78 e r² = 0,71, respectivamente. O grupo L4 apresentou fraca correlação com r = -0,04. Os modelos de regressão foram capazes de explicar o quanto da variação de EGG é devido à variação de ECC, com resultados de coeficientes de determinação igual a 0,61 para o grupo PP e 0,51 para o grupo L+5. Em conclusão, para os animais do pré-parto e do pós-parto com mais de cinco semanas de lactação o ECC pode ser considerado um bom preditor da EGG.UEL2017-11-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Históricaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2853410.5433/1679-0359.2017v38n6p3797Semina: Ciências Agrárias; Vol. 38 No. 6 (2017); 3797-3806Semina: Ciências Agrárias; v. 38 n. 6 (2017); 3797-38061679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28534/22283Copyright (c) 2017 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessGentil, Narjara RodriguesSantos, Anselmo Domingos FerreiraPereira, Mikaele AlexandreLima, Mariana SantosGuimarães, José Cláudio TorresGomes, Ludmila CoutoDantas, Francielle da ConceiçãoOliveira, Veronaldo Souza de2022-10-21T13:15:38Zoai:ojs.pkp.sfu.ca:article/28534Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-21T13:15:38Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Validation of body condition score system in Holstein x Zebu cows via ultrasound method during the transition period and early lactation Validação por ultrassonografia da condição corporal em vacas mestiças Holandês x Zebu durante o período de transição e fase inicial de lactação |
title |
Validation of body condition score system in Holstein x Zebu cows via ultrasound method during the transition period and early lactation |
spellingShingle |
Validation of body condition score system in Holstein x Zebu cows via ultrasound method during the transition period and early lactation Gentil, Narjara Rodrigues Antepartum Postpartum Energy reserve Dairy cows. Pré-parto Pós-parto Reserva de energia Vacas leiteiras. |
title_short |
Validation of body condition score system in Holstein x Zebu cows via ultrasound method during the transition period and early lactation |
title_full |
Validation of body condition score system in Holstein x Zebu cows via ultrasound method during the transition period and early lactation |
title_fullStr |
Validation of body condition score system in Holstein x Zebu cows via ultrasound method during the transition period and early lactation |
title_full_unstemmed |
Validation of body condition score system in Holstein x Zebu cows via ultrasound method during the transition period and early lactation |
title_sort |
Validation of body condition score system in Holstein x Zebu cows via ultrasound method during the transition period and early lactation |
author |
Gentil, Narjara Rodrigues |
author_facet |
Gentil, Narjara Rodrigues Santos, Anselmo Domingos Ferreira Pereira, Mikaele Alexandre Lima, Mariana Santos Guimarães, José Cláudio Torres Gomes, Ludmila Couto Dantas, Francielle da Conceição Oliveira, Veronaldo Souza de |
author_role |
author |
author2 |
Santos, Anselmo Domingos Ferreira Pereira, Mikaele Alexandre Lima, Mariana Santos Guimarães, José Cláudio Torres Gomes, Ludmila Couto Dantas, Francielle da Conceição Oliveira, Veronaldo Souza de |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Gentil, Narjara Rodrigues Santos, Anselmo Domingos Ferreira Pereira, Mikaele Alexandre Lima, Mariana Santos Guimarães, José Cláudio Torres Gomes, Ludmila Couto Dantas, Francielle da Conceição Oliveira, Veronaldo Souza de |
dc.subject.por.fl_str_mv |
Antepartum Postpartum Energy reserve Dairy cows. Pré-parto Pós-parto Reserva de energia Vacas leiteiras. |
topic |
Antepartum Postpartum Energy reserve Dairy cows. Pré-parto Pós-parto Reserva de energia Vacas leiteiras. |
description |
This study aims to validate, by means of subcutaneous rump fat thickness (RFT), the suitability of the visual evaluation of body condition score (BCS) to indicate the body condition of crossbred dairy cows (Holstein x Zebu) during the transition period and early lactation. Animals were selected according to lactation period and distributed into three groups: PP (0 to 4 weeks antepartum; n = 30), L4 (0 to 4 weeks postpartum; n = 15), and L + 5 (5 to 14 weeks postpartum; n = 63). The relationship among RFT, BCS, and body weight (BW) was investigated using correlation and regression analyses. The variables BCS, RFT, and BW were different among the three groups (P < 0.05). The correlations between BCS and RFT were higher in groups PP and L + 5 (r = 0.78 and r = 0.71 respectively). However, the L4 group showed a weak correlation (r = -0.04). The regression models were able to explain how much RFT varies because of changes in BCS, with coefficients of determination equal to 0.61 for PP and 0.51 for L + 5 group. In conclusion, BCS can be considered a good predictor of RFT for crossbred Holstein x Zebu cows in antepartum and postpartum for over 5 weeks of lactation. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-11-23 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa Histórica |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28534 10.5433/1679-0359.2017v38n6p3797 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28534 |
identifier_str_mv |
10.5433/1679-0359.2017v38n6p3797 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28534/22283 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 38 No. 6 (2017); 3797-3806 Semina: Ciências Agrárias; v. 38 n. 6 (2017); 3797-3806 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1750315426122825728 |