Risk factors for clinical mastitis in dairy cattle of Costa Rica
A retrospective observational study was conducted to evaluate risk factors related to the cow and its environment on the occurrence of early events of clinical mastitis in dairy cattle of Costa Rica. Data on 313 406 lactations from 101 125 cows and 288 herds was available. The relative frequency of...
| Autores: | , , , |
|---|---|
| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Costa Rica |
| Recursos: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Idioma: | español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/21777 |
| Acesso em linha: | https://revistas.ucr.ac.cr/index.php/agrocost/article/view/21777 |
| Access Level: | acceso abierto |
| Palavra-chave: | fisk factors clinical mastitis logistic regression dairy cows factor de riesgo mastitis clínica regresión logística vacas lecheras |
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Costa Rica |
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Risk factors for clinical mastitis in dairy cattle of Costa Rica Factores de riesgo para la incidencia de mastitis clínica en ganado lechero de Costa Rica |
| title |
Risk factors for clinical mastitis in dairy cattle of Costa Rica |
| spellingShingle |
Risk factors for clinical mastitis in dairy cattle of Costa Rica Mora, María Gabriela fisk factors clinical mastitis logistic regression dairy cows factor de riesgo mastitis clínica regresión logística vacas lecheras |
| title_short |
Risk factors for clinical mastitis in dairy cattle of Costa Rica |
| title_full |
Risk factors for clinical mastitis in dairy cattle of Costa Rica |
| title_fullStr |
Risk factors for clinical mastitis in dairy cattle of Costa Rica |
| title_full_unstemmed |
Risk factors for clinical mastitis in dairy cattle of Costa Rica |
| title_sort |
Risk factors for clinical mastitis in dairy cattle of Costa Rica |
| dc.creator.none.fl_str_mv |
Mora, María Gabriela Vargas, Bernardo Romero, Juan José Camacho, Jorge |
| author |
Mora, María Gabriela |
| author_facet |
Mora, María Gabriela Vargas, Bernardo Romero, Juan José Camacho, Jorge |
| author_role |
author |
| author2 |
Vargas, Bernardo Romero, Juan José Camacho, Jorge |
| author2_role |
author author author |
| dc.subject.none.fl_str_mv |
fisk factors clinical mastitis logistic regression dairy cows factor de riesgo mastitis clínica regresión logística vacas lecheras |
| topic |
fisk factors clinical mastitis logistic regression dairy cows factor de riesgo mastitis clínica regresión logística vacas lecheras |
| description |
A retrospective observational study was conducted to evaluate risk factors related to the cow and its environment on the occurrence of early events of clinical mastitis in dairy cattle of Costa Rica. Data on 313 406 lactations from 101 125 cows and 288 herds was available. The relative frequency of mastitis at the population level was 11.6%, ranging from 0.3% to 70.7% between herds. The population incidence rate was 4.65 cases per 10 000 days at risk in lactation, ranging from 0.092 to 5.7 between herds. Logistic regression was used to evaluate potential risk factors affecting incidence of clinical mastitis. Two generalized linear mixed models (GLMM) were explored, without (base model) and with (alternative model) effects from previous lactation. The fixed factors with significant effect were: agroecological zone, racial group, year, number and month of calving, stage of lactation, duration and milk production in previous lactation, and history of mastitis in previous lactation. Categories with higher vs. lower propensity to mastitis were, respectively: tropical dry forest (OR Odds ratio: 11.03) vs. tropical rainforest (OR: 0.97), breed type Jersey×Brown Swiss (OR: 1.67) vs. Brown Swiss (OR: 1), birth-year before 1995 (OR:2.19) vs. after 2010 (OR: 1), fourth parity (OR:1.19) vs. first parity (OR: 0.54), month of calving March (OR: 1.25) vs. October (OR: 0.95), stage of lactation 1-30 days (OR:1.04) vs. 391-420 days (OR: 0.94). In covariates, an increase of 30 d in the previous lactation length was associated with an OR of 1.04 and an increase in production of 1000 kg in the previous lactation was associated with an OR of 1.17. These findings may be useful for the development of preventive protocols aimed at reducing the incidence of mastitis in groups with a higher risk. |
| publishDate |
2015 |
| dc.date.none.fl_str_mv |
2015-11-13 |
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info:eu-repo/semantics/publishedVersion Article Artículo artículo original http://purl.org/coar/resource_type/c_6501 http://purl.org/coar/resource_type/c_2df8fbb1 info:eu-repo/semantics/article |
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article |
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publishedVersion |
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https://revistas.ucr.ac.cr/index.php/agrocost/article/view/21777 10.15517/rac.v39i2.21777 |
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https://revistas.ucr.ac.cr/index.php/agrocost/article/view/21777 |
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10.15517/rac.v39i2.21777 |
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spa |
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spa |
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https://revistas.ucr.ac.cr/index.php/agrocost/article/view/21777/21980 |
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Derechos de autor 2016 Agronomía Costarricense acceso abierto http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
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Derechos de autor 2016 Agronomía Costarricense acceso abierto http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
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Universidad de Costa Rica |
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Universidad de Costa Rica |
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Agronomía Costarricense; Agronomía Costarricense: Vol. 39, Issue 2 (July-December) Agronomía Costarricense; Agronomía Costarricense: Vol. 39, Nº 2 (Julio-Diciembre) 2215-2202 0377-9424 10.15517/rac.v39i2 reponame:Portal de Revistas UCR instname:Universidad de Costa Rica instacron:UCR |
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Universidad de Costa Rica |
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UCR |
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UCR |
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Portal de Revistas UCR |
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Portal de Revistas UCR |
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Portal de Revistas UCR - Universidad de Costa Rica |
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jorge.polanco@ucr.ac.cr |
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1849325421579993088 |
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Risk factors for clinical mastitis in dairy cattle of Costa RicaFactores de riesgo para la incidencia de mastitis clínica en ganado lechero de Costa RicaMora, María GabrielaVargas, BernardoRomero, Juan JoséCamacho, Jorgefisk factorsclinical mastitislogistic regressiondairy cowsfactor de riesgomastitis clínicaregresión logísticavacas lecherasA retrospective observational study was conducted to evaluate risk factors related to the cow and its environment on the occurrence of early events of clinical mastitis in dairy cattle of Costa Rica. Data on 313 406 lactations from 101 125 cows and 288 herds was available. The relative frequency of mastitis at the population level was 11.6%, ranging from 0.3% to 70.7% between herds. The population incidence rate was 4.65 cases per 10 000 days at risk in lactation, ranging from 0.092 to 5.7 between herds. Logistic regression was used to evaluate potential risk factors affecting incidence of clinical mastitis. Two generalized linear mixed models (GLMM) were explored, without (base model) and with (alternative model) effects from previous lactation. The fixed factors with significant effect were: agroecological zone, racial group, year, number and month of calving, stage of lactation, duration and milk production in previous lactation, and history of mastitis in previous lactation. Categories with higher vs. lower propensity to mastitis were, respectively: tropical dry forest (OR Odds ratio: 11.03) vs. tropical rainforest (OR: 0.97), breed type Jersey×Brown Swiss (OR: 1.67) vs. Brown Swiss (OR: 1), birth-year before 1995 (OR:2.19) vs. after 2010 (OR: 1), fourth parity (OR:1.19) vs. first parity (OR: 0.54), month of calving March (OR: 1.25) vs. October (OR: 0.95), stage of lactation 1-30 days (OR:1.04) vs. 391-420 days (OR: 0.94). In covariates, an increase of 30 d in the previous lactation length was associated with an OR of 1.04 and an increase in production of 1000 kg in the previous lactation was associated with an OR of 1.17. These findings may be useful for the development of preventive protocols aimed at reducing the incidence of mastitis in groups with a higher risk.Se realizó un estudio observacional retrospectivo para evaluar posibles factores de riesgo, relacionados con la vaca y su entorno, sobre la ocurrencia de primeros eventos de mastitis clínica en ganado lechero de Costa Rica. Se contó con información de 313 406 lactancias, 101 125 vacas y 288 hatos. La frecuencia relativa de mastitis a nivel poblacional fue de 11,6%, con variaciones desde 0,3% hasta 70,7% entre los hatos. La tasa de incidencia poblacional fue de 4,65 casos por cada 10 000 días a riesgo en la lactancia, con oscilaciones entre 0,092 y 5,7 para los diferentes hatos. Mediante regresión logística se evaluaron posibles factores de riesgo que afectan la incidencia de mastitis. Se exploraron 2 modelos mixtos lineales generalizados (GLMM), sin (modelo base) y con (modelo alternativo) efectos de lactancia previa. Los factores fijos con efecto significativo fueron: zona agroecológica, grupo racial, año, número y mes de parto, periodo de lactancia, duración y producción de leche en lactancia previa e historial previo de mastitis. Las categorías de mayor vs. menor propensión a contraer mastitis fueron, respectivamente: zona bosque seco tropical (OR Odds ratio:11,03) vs. bosque húmedo tropical (OR:0,97), grupo racial Jersey×Pardo Suizo (OR:1,67) vs. Pardo Suizo (OR: 1), partos en años previos a 1995 (OR:2,19) vs. posteriores a 2010 (OR:1), número de parto 4 (OR:1,19) vs. primer parto (OR:0,54), mes de parto Marzo (OR:1,25) vs. Octubre (OR:0,95), periodo de lactancia 1-30 días (OR:104) vs. 391- 420 días (OR:0,94). En covariables, un incremento de 30 d en longitud de la lactancia anterior se asoció con OR de 1,04 y un incremento de 1000 kg en producción en la lactancia previa se asoció con un OR de 1,17. Estos hallazgos pueden ser útiles para el desarrollo de protocolos preventivos enfocados a reducir la incidencia de mastitis en los grupos de mayor riesgo.Universidad de Costa Rica2015-11-13info:eu-repo/semantics/publishedVersionArticleArtículoartículo originalhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdfhttps://revistas.ucr.ac.cr/index.php/agrocost/article/view/2177710.15517/rac.v39i2.21777Agronomía Costarricense; Agronomía Costarricense: Vol. 39, Issue 2 (July-December)Agronomía Costarricense; Agronomía Costarricense: Vol. 39, Nº 2 (Julio-Diciembre)2215-22020377-942410.15517/rac.v39i2reponame:Portal de Revistas UCRinstname:Universidad de Costa Ricainstacron:UCRspahttps://revistas.ucr.ac.cr/index.php/agrocost/article/view/21777/21980Derechos de autor 2016 Agronomía Costarricenseacceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2025-04-08T15:53:56Zoai:portal.ucr.ac.cr:article/21777Portal de revistashttps://revistas.ucr.ac.cr/Universidadhttp://www.ucr.ac.crhttps://revistas.ucr.ac.cr/index.php/index/oaijorge.polanco@ucr.ac.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:2025-08-13T10:33:53.795Portal de Revistas UCR - Universidad de Costa Ricafalse |
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15,811543 |