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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad Politécnica Salesiana
2021
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=476065991004 https://www.redalyc.org/journal/4760/476065991004/ https://www.redalyc.org/journal/4760/476065991004/html/ https://www.redalyc.org/journal/4760/476065991004/476065991004.epub https://www.redalyc.org/journal/4760/476065991004/movil https://doi.org/10.17163/lgr.n33.2021.04 |
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Sommario:
- POSTPARTUM PATHOLOGIES AND ORIGIN OF INFERTILE COWS IN DAIRY CATTLE IN THE MEXICAN HIGHLANDS Miguel A. Lammoglia-Villagómez Javier C. Huerta-Peña Pablo R. Marini Ciencias de la Tierra highlands dairy cows Infertility housed cows metabolic problems Infertility in dairy cows under intensive productive systems is a growing problem and is one of the main causes of culling. The objective was to determine the origin of infertility in dairy cows under intensive productive systems from the Mexican highlands was postpartum pathologies. In this experiment 1,110 housed Holstein cows were studied. Cows were divided by calving number: First (n=389); Second (n=296) and three or more (n=425). Statistical analysis: comparison of means (anova model) and univariate analysis. High porcentage of the cows remained healthy after calving (80.5%), however, 15.6% of these cows were infertile. The prevalence of pathologies was 19.5% and 26.3% of these cows were infertile. Cows with reproductive pathologies had a higher percentage (p <0.05) of infertile cows (25.0%). The infertility increased with the number of calvings, cows with three or more calvings and with reproductive pathologies had the highest percentage of infertile cows compared with those of second and first calving (39.0%, 30.0% and 14.0%; respectively). Second calving cows (OR: 2.24 95% CI: 1.06 - 4.95) and cows of three or more calvings and presented reproductive pathologies (OR: 1.95 95% CI: 1.03 - 3.71) were identified as risk factors. In conclusion, cows that presented reproductive pathologies had the highest percentage of infertile cows and the risk of remaining open was increased up to 4 times, especially if they presented more than 2 calvings. The percentage of infertile cows with postpartum pathologies could not be fully explained, leaving 15.6% of infertile cows with different origins. 2021 artículo científico 1390-3799 https://www.redalyc.org/articulo.oa?id=476065991004 https://www.redalyc.org/journal/4760/476065991004/ https://www.redalyc.org/journal/4760/476065991004/html/ https://www.redalyc.org/journal/4760/476065991004/476065991004.epub https://www.redalyc.org/journal/4760/476065991004/movil https://doi.org/10.17163/lgr.n33.2021.04 en http://www.redalyc.org/revista.oa?id=4760 La Granja. Revista de Ciencias de la Vida application/pdf Universidad Politécnica Salesiana La Granja. Revista de Ciencias de la Vida (Ecuador) Num.1 Vol.33