Association between age at first calving and productive performance in Argentinian dairy herds

Autores
Turiello, Paula; Vissio, Claudina; Larriestra, Alejandro Jose; Heinrichs, A.J.
Año de publicación
2019
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The aim of this study was to describe the distribution of age at first calving (AFC) in dairy herds of Córdoba province and to evaluate the effect of AFC on productive indicators during the first lactation. A retrospective study was used to analyze data from 26,614 cows calved for the first time during the calendar year 2016. A total of 15,181 first-lactation cows were included in the analysis. Registers were stratified by age at first calving (AFC) into 5 groups: 1) 18?21 mo, 2) 22?25 mo, 3) 26?29 mo, 4) 30?33 mo, 5) 34?37 mo. Milk yield (MY) for first lactation cows having at least 5 milk test days was used to analyze production. The General Linear Mixed Models was applied to determine differences in start-up, peak and daily mean milk yield. The fixed effects evaluated were AFC category, calving season and herd size category, herd was fitted as a random effect. The effect of AFC on milk production during the 5 milk test days was evaluated including the random effect of cow nested within farm. The overall median and interquartile range (IQR) of AFC was 27 and 25?30 mo, respectively. Median milk yield per heifer was 27.1 kg/d (IQR = 23?31). MY, start-up and peak milk yield increased systematically from the 1st to the 5th AFC category (Table 1). Milk production adjusted by herd size and calving season for the 5 AFC categories showed lower MY for lower AFC categories at the beginning of the lactation but differences between AFC categories 3, 4
Fil: Turiello, Paula. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Departamento de Producción Animal; Argentina
Fil: Vissio, Claudina. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Departamento de Patología Animal; Argentina
Fil: Larriestra, Alejandro Jose. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Departamento de Patología Animal; Argentina. Universidad Nacional de Villa María. Instituto Académico Pedagógico de Ciencias Básicas y Aplicadas; Argentina
Fil: Heinrichs, A.J.. State University of Pennsylvania; Estados Unidos
2019 American Dairy Science Association Annual Meeting
Cincinnati
Estados Unidos
American Dairy Science Association
Materia
Age at first calving
Milk yield
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/227093
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/227093
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Association between age at first calving and productive performance in Argentinian dairy herdsTuriello, PaulaVissio, ClaudinaLarriestra, Alejandro JoseHeinrichs, A.J.Age at first calvingMilk yieldhttps://purl.org/becyt/ford/4.3https://purl.org/becyt/ford/4The aim of this study was to describe the distribution of age at first calving (AFC) in dairy herds of Córdoba province and to evaluate the effect of AFC on productive indicators during the first lactation. A retrospective study was used to analyze data from 26,614 cows calved for the first time during the calendar year 2016. A total of 15,181 first-lactation cows were included in the analysis. Registers were stratified by age at first calving (AFC) into 5 groups: 1) 18?21 mo, 2) 22?25 mo, 3) 26?29 mo, 4) 30?33 mo, 5) 34?37 mo. Milk yield (MY) for first lactation cows having at least 5 milk test days was used to analyze production. The General Linear Mixed Models was applied to determine differences in start-up, peak and daily mean milk yield. The fixed effects evaluated were AFC category, calving season and herd size category, herd was fitted as a random effect. The effect of AFC on milk production during the 5 milk test days was evaluated including the random effect of cow nested within farm. The overall median and interquartile range (IQR) of AFC was 27 and 25?30 mo, respectively. Median milk yield per heifer was 27.1 kg/d (IQR = 23?31). MY, start-up and peak milk yield increased systematically from the 1st to the 5th AFC category (Table 1). Milk production adjusted by herd size and calving season for the 5 AFC categories showed lower MY for lower AFC categories at the beginning of the lactation but differences between AFC categories 3, 4Fil: Turiello, Paula. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Departamento de Producción Animal; ArgentinaFil: Vissio, Claudina. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Departamento de Patología Animal; ArgentinaFil: Larriestra, Alejandro Jose. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Departamento de Patología Animal; Argentina. Universidad Nacional de Villa María. Instituto Académico Pedagógico de Ciencias Básicas y Aplicadas; ArgentinaFil: Heinrichs, A.J.. State University of Pennsylvania; Estados Unidos2019 American Dairy Science Association Annual MeetingCincinnatiEstados UnidosAmerican Dairy Science AssociationAmerican Dairy Science Association2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/227093Association between age at first calving and productive performance in Argentinian dairy herds; 2019 American Dairy Science Association Annual Meeting; Cincinnati; Estados Unidos; 2019; 58-591525-3198CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.adsa.org/Meetings/2019-Annual-Meeting/AbstractsInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:15:17Zoai:ri.conicet.gov.ar:11336/227093instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:15:17.368CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Association between age at first calving and productive performance in Argentinian dairy herds
title Association between age at first calving and productive performance in Argentinian dairy herds
spellingShingle Association between age at first calving and productive performance in Argentinian dairy herds
Turiello, Paula
Age at first calving
Milk yield
title_short Association between age at first calving and productive performance in Argentinian dairy herds
title_full Association between age at first calving and productive performance in Argentinian dairy herds
title_fullStr Association between age at first calving and productive performance in Argentinian dairy herds
title_full_unstemmed Association between age at first calving and productive performance in Argentinian dairy herds
title_sort Association between age at first calving and productive performance in Argentinian dairy herds
dc.creator.none.fl_str_mv Turiello, Paula
Vissio, Claudina
Larriestra, Alejandro Jose
Heinrichs, A.J.
author Turiello, Paula
author_facet Turiello, Paula
Vissio, Claudina
Larriestra, Alejandro Jose
Heinrichs, A.J.
author_role author
author2 Vissio, Claudina
Larriestra, Alejandro Jose
Heinrichs, A.J.
author2_role author
author
author
dc.subject.none.fl_str_mv Age at first calving
Milk yield
topic Age at first calving
Milk yield
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.3
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv The aim of this study was to describe the distribution of age at first calving (AFC) in dairy herds of Córdoba province and to evaluate the effect of AFC on productive indicators during the first lactation. A retrospective study was used to analyze data from 26,614 cows calved for the first time during the calendar year 2016. A total of 15,181 first-lactation cows were included in the analysis. Registers were stratified by age at first calving (AFC) into 5 groups: 1) 18?21 mo, 2) 22?25 mo, 3) 26?29 mo, 4) 30?33 mo, 5) 34?37 mo. Milk yield (MY) for first lactation cows having at least 5 milk test days was used to analyze production. The General Linear Mixed Models was applied to determine differences in start-up, peak and daily mean milk yield. The fixed effects evaluated were AFC category, calving season and herd size category, herd was fitted as a random effect. The effect of AFC on milk production during the 5 milk test days was evaluated including the random effect of cow nested within farm. The overall median and interquartile range (IQR) of AFC was 27 and 25?30 mo, respectively. Median milk yield per heifer was 27.1 kg/d (IQR = 23?31). MY, start-up and peak milk yield increased systematically from the 1st to the 5th AFC category (Table 1). Milk production adjusted by herd size and calving season for the 5 AFC categories showed lower MY for lower AFC categories at the beginning of the lactation but differences between AFC categories 3, 4
Fil: Turiello, Paula. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Departamento de Producción Animal; Argentina
Fil: Vissio, Claudina. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Departamento de Patología Animal; Argentina
Fil: Larriestra, Alejandro Jose. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Departamento de Patología Animal; Argentina. Universidad Nacional de Villa María. Instituto Académico Pedagógico de Ciencias Básicas y Aplicadas; Argentina
Fil: Heinrichs, A.J.. State University of Pennsylvania; Estados Unidos
2019 American Dairy Science Association Annual Meeting
Cincinnati
Estados Unidos
American Dairy Science Association
description The aim of this study was to describe the distribution of age at first calving (AFC) in dairy herds of Córdoba province and to evaluate the effect of AFC on productive indicators during the first lactation. A retrospective study was used to analyze data from 26,614 cows calved for the first time during the calendar year 2016. A total of 15,181 first-lactation cows were included in the analysis. Registers were stratified by age at first calving (AFC) into 5 groups: 1) 18?21 mo, 2) 22?25 mo, 3) 26?29 mo, 4) 30?33 mo, 5) 34?37 mo. Milk yield (MY) for first lactation cows having at least 5 milk test days was used to analyze production. The General Linear Mixed Models was applied to determine differences in start-up, peak and daily mean milk yield. The fixed effects evaluated were AFC category, calving season and herd size category, herd was fitted as a random effect. The effect of AFC on milk production during the 5 milk test days was evaluated including the random effect of cow nested within farm. The overall median and interquartile range (IQR) of AFC was 27 and 25?30 mo, respectively. Median milk yield per heifer was 27.1 kg/d (IQR = 23?31). MY, start-up and peak milk yield increased systematically from the 1st to the 5th AFC category (Table 1). Milk production adjusted by herd size and calving season for the 5 AFC categories showed lower MY for lower AFC categories at the beginning of the lactation but differences between AFC categories 3, 4
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/227093
Association between age at first calving and productive performance in Argentinian dairy herds; 2019 American Dairy Science Association Annual Meeting; Cincinnati; Estados Unidos; 2019; 58-59
1525-3198
CONICET Digital
CONICET
url http://hdl.handle.net/11336/227093
identifier_str_mv Association between age at first calving and productive performance in Argentinian dairy herds; 2019 American Dairy Science Association Annual Meeting; Cincinnati; Estados Unidos; 2019; 58-59
1525-3198
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.adsa.org/Meetings/2019-Annual-Meeting/Abstracts
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv American Dairy Science Association
publisher.none.fl_str_mv American Dairy Science Association
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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