Investigating the relationship between human-animal interactions, reactivity, stress response and reproductive performance in Nellore heifers
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.livsci.2018.08.001 http://hdl.handle.net/11449/188151 |
Resumo: | The aim of this study was to further contribute to the understanding of the relationships between human-animal interactions, reactivity, stress response, and reproductive performance of Nellore heifers submitted to a fixed-time artificial insemination (FTAI) protocol. A sample of 571 heifers was used to assess two reactivity traits (flight speed - FS and the composite reactivity score - RS), five human-animal interaction traits (negative handling - NH, accidents - ACCIDENT, defecation-urination - DEF-URI, undesirable behavior – UB and entrance time – ET), and perineal region dirtiness – DIRTINESS. All variables were assessed on d0, d7 and d11 of a FTAI protocol. Additionally, two physiological indicators of stress (cortisol - CORT and neutrophil:lymphocyte ratio - N:L) were recorded in a subsample of 99 heifers on d0 and d11. To evaluate the relationships among all studied variables, we applied two different statistical approaches: a multivariate method (MCA, or multiple correspondence analysis) and linear models as confirmatory analyses. In the main data set, the MCA identified 13 correspondences, which we classified into two groups (undesirable vs. desirable aspects of the variables assessed). Another three correspondences were identified in the physiological data set: two indicated that the most reactive animals had the highest cortisol concentrations and the dirtiest perineal regions, and the other showed that animals that experienced negative handling displayed undesirable behaviors. Significant effects of FS (χ2 = 7.30; P < 0.05) and RS (χ2 = 4.61; P = 0.10) were found for the chances of a heifer getting pregnant, with lower chances of pregnancy for ‘average FS and RS’ heifers compared to the calmest and most excitable heifers, which did not differ between each other. Finally, heifers with a dirtier perineal region (higher DIRTINESS score) had lower chances of getting pregnant than cleaner ones (χ2 = 6.75; P < 0.05). We conclude that poor quality of handling is associated with higher animal reactivity, more undesirable behaviors and an increased risk of accidents. Although we did not observe a direct relationship between negative handling or heifer reactivity and pregnancy rates, we note that heifers that experienced negative handling were more reactive during handling as well as dirtier in the perineal region, which in turn was associated with lower pregnancy rates. |
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Investigating the relationship between human-animal interactions, reactivity, stress response and reproductive performance in Nellore heifersAnimal welfareCattle behaviorCattle handlingCattle temperamentPregnancy rateStress physiologyThe aim of this study was to further contribute to the understanding of the relationships between human-animal interactions, reactivity, stress response, and reproductive performance of Nellore heifers submitted to a fixed-time artificial insemination (FTAI) protocol. A sample of 571 heifers was used to assess two reactivity traits (flight speed - FS and the composite reactivity score - RS), five human-animal interaction traits (negative handling - NH, accidents - ACCIDENT, defecation-urination - DEF-URI, undesirable behavior – UB and entrance time – ET), and perineal region dirtiness – DIRTINESS. All variables were assessed on d0, d7 and d11 of a FTAI protocol. Additionally, two physiological indicators of stress (cortisol - CORT and neutrophil:lymphocyte ratio - N:L) were recorded in a subsample of 99 heifers on d0 and d11. To evaluate the relationships among all studied variables, we applied two different statistical approaches: a multivariate method (MCA, or multiple correspondence analysis) and linear models as confirmatory analyses. In the main data set, the MCA identified 13 correspondences, which we classified into two groups (undesirable vs. desirable aspects of the variables assessed). Another three correspondences were identified in the physiological data set: two indicated that the most reactive animals had the highest cortisol concentrations and the dirtiest perineal regions, and the other showed that animals that experienced negative handling displayed undesirable behaviors. Significant effects of FS (χ2 = 7.30; P < 0.05) and RS (χ2 = 4.61; P = 0.10) were found for the chances of a heifer getting pregnant, with lower chances of pregnancy for ‘average FS and RS’ heifers compared to the calmest and most excitable heifers, which did not differ between each other. Finally, heifers with a dirtier perineal region (higher DIRTINESS score) had lower chances of getting pregnant than cleaner ones (χ2 = 6.75; P < 0.05). We conclude that poor quality of handling is associated with higher animal reactivity, more undesirable behaviors and an increased risk of accidents. Although we did not observe a direct relationship between negative handling or heifer reactivity and pregnancy rates, we note that heifers that experienced negative handling were more reactive during handling as well as dirtier in the perineal region, which in turn was associated with lower pregnancy rates.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Programa de Pós-Graduação em Zootecnia Faculdade de Ciências Agrárias e Veterinárias UNESPGrupo de Estudos e Pesquisas em Etologia e Ecologia Animal Departamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias UNESPDepartamento de Zoologia Instituto de Ciências Biológicas UFJFDepartamento de Ciências Exatas Faculdade de Ciências Agrárias e Veterinárias Jaboticabal UNESPDepartamento de Ciências Básicas Faculdade de Zootecnia e Engenharia de Alimentos USPCNPq ResearcherPrograma de Pós-Graduação em Zootecnia Faculdade de Ciências Agrárias e Veterinárias UNESPGrupo de Estudos e Pesquisas em Etologia e Ecologia Animal Departamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias UNESPDepartamento de Ciências Exatas Faculdade de Ciências Agrárias e Veterinárias Jaboticabal UNESPUniversidade Estadual Paulista (Unesp)UFJFUniversidade de São Paulo (USP)CNPq ResearcherCeballos, Maria C. [UNESP]Sant'Anna, Aline C. [UNESP]Góis, Karen Camille R. [UNESP]Ferraudo, Antonio S. [UNESP]Negrao, Joao A.da Costa, Mateus J.R. Paranhos [UNESP]2019-10-06T15:58:54Z2019-10-06T15:58:54Z2018-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article65-75http://dx.doi.org/10.1016/j.livsci.2018.08.001Livestock Science, v. 217, p. 65-75.1871-1413http://hdl.handle.net/11449/18815110.1016/j.livsci.2018.08.0012-s2.0-85054359172Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLivestock Scienceinfo:eu-repo/semantics/openAccess2024-06-07T18:39:08Zoai:repositorio.unesp.br:11449/188151Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:47:36.902195Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Investigating the relationship between human-animal interactions, reactivity, stress response and reproductive performance in Nellore heifers |
title |
Investigating the relationship between human-animal interactions, reactivity, stress response and reproductive performance in Nellore heifers |
spellingShingle |
Investigating the relationship between human-animal interactions, reactivity, stress response and reproductive performance in Nellore heifers Ceballos, Maria C. [UNESP] Animal welfare Cattle behavior Cattle handling Cattle temperament Pregnancy rate Stress physiology |
title_short |
Investigating the relationship between human-animal interactions, reactivity, stress response and reproductive performance in Nellore heifers |
title_full |
Investigating the relationship between human-animal interactions, reactivity, stress response and reproductive performance in Nellore heifers |
title_fullStr |
Investigating the relationship between human-animal interactions, reactivity, stress response and reproductive performance in Nellore heifers |
title_full_unstemmed |
Investigating the relationship between human-animal interactions, reactivity, stress response and reproductive performance in Nellore heifers |
title_sort |
Investigating the relationship between human-animal interactions, reactivity, stress response and reproductive performance in Nellore heifers |
author |
Ceballos, Maria C. [UNESP] |
author_facet |
Ceballos, Maria C. [UNESP] Sant'Anna, Aline C. [UNESP] Góis, Karen Camille R. [UNESP] Ferraudo, Antonio S. [UNESP] Negrao, Joao A. da Costa, Mateus J.R. Paranhos [UNESP] |
author_role |
author |
author2 |
Sant'Anna, Aline C. [UNESP] Góis, Karen Camille R. [UNESP] Ferraudo, Antonio S. [UNESP] Negrao, Joao A. da Costa, Mateus J.R. Paranhos [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) UFJF Universidade de São Paulo (USP) CNPq Researcher |
dc.contributor.author.fl_str_mv |
Ceballos, Maria C. [UNESP] Sant'Anna, Aline C. [UNESP] Góis, Karen Camille R. [UNESP] Ferraudo, Antonio S. [UNESP] Negrao, Joao A. da Costa, Mateus J.R. Paranhos [UNESP] |
dc.subject.por.fl_str_mv |
Animal welfare Cattle behavior Cattle handling Cattle temperament Pregnancy rate Stress physiology |
topic |
Animal welfare Cattle behavior Cattle handling Cattle temperament Pregnancy rate Stress physiology |
description |
The aim of this study was to further contribute to the understanding of the relationships between human-animal interactions, reactivity, stress response, and reproductive performance of Nellore heifers submitted to a fixed-time artificial insemination (FTAI) protocol. A sample of 571 heifers was used to assess two reactivity traits (flight speed - FS and the composite reactivity score - RS), five human-animal interaction traits (negative handling - NH, accidents - ACCIDENT, defecation-urination - DEF-URI, undesirable behavior – UB and entrance time – ET), and perineal region dirtiness – DIRTINESS. All variables were assessed on d0, d7 and d11 of a FTAI protocol. Additionally, two physiological indicators of stress (cortisol - CORT and neutrophil:lymphocyte ratio - N:L) were recorded in a subsample of 99 heifers on d0 and d11. To evaluate the relationships among all studied variables, we applied two different statistical approaches: a multivariate method (MCA, or multiple correspondence analysis) and linear models as confirmatory analyses. In the main data set, the MCA identified 13 correspondences, which we classified into two groups (undesirable vs. desirable aspects of the variables assessed). Another three correspondences were identified in the physiological data set: two indicated that the most reactive animals had the highest cortisol concentrations and the dirtiest perineal regions, and the other showed that animals that experienced negative handling displayed undesirable behaviors. Significant effects of FS (χ2 = 7.30; P < 0.05) and RS (χ2 = 4.61; P = 0.10) were found for the chances of a heifer getting pregnant, with lower chances of pregnancy for ‘average FS and RS’ heifers compared to the calmest and most excitable heifers, which did not differ between each other. Finally, heifers with a dirtier perineal region (higher DIRTINESS score) had lower chances of getting pregnant than cleaner ones (χ2 = 6.75; P < 0.05). We conclude that poor quality of handling is associated with higher animal reactivity, more undesirable behaviors and an increased risk of accidents. Although we did not observe a direct relationship between negative handling or heifer reactivity and pregnancy rates, we note that heifers that experienced negative handling were more reactive during handling as well as dirtier in the perineal region, which in turn was associated with lower pregnancy rates. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-01 2019-10-06T15:58:54Z 2019-10-06T15:58:54Z |
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.2018.08.001 Livestock Science, v. 217, p. 65-75. 1871-1413 http://hdl.handle.net/11449/188151 10.1016/j.livsci.2018.08.001 2-s2.0-85054359172 |
url |
http://dx.doi.org/10.1016/j.livsci.2018.08.001 http://hdl.handle.net/11449/188151 |
identifier_str_mv |
Livestock Science, v. 217, p. 65-75. 1871-1413 10.1016/j.livsci.2018.08.001 2-s2.0-85054359172 |
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 |
65-75 |
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_ |
1808128277198405632 |