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Fatores que afetam a expressão de estro detectado por monitores de atividade e riscos de concepção em vacas leiteiras lactantes

Autor: Madureira, Augusto Mesquita Lacerda

Orientador: José Luiz Moraes Vasconcelos
O objetivo deste estudo foi determinar os fatores de risco relacionados com o aumento da atividade física expressado durante o estro e as taxas de concepção em vacas leiteiras lactantes. Os animais fo

Externí odkaz: http://hdl.handle.net/11449/136177

Association between ambient temperature and humidity, vaginal temperature, and automatic activity monitoring on induced estrus in lactating cows

Autor: Polsky, Liam B., Madureira, Augusto M.L., Filho, Eraldo L. Drago, Soriano, Sergio, Sica, Alex. F., Vasconcelos, José L.M., Cerri, Ronaldo L.A.

Publikováno v: In Journal of Dairy Science October 2017 100(10):8590-8601

Reproductive tract size and position score: Estimation of genetic parameters for a novel fertility trait in dairy cows

Autor: Martin, Audrey A A, de Oliveira, Gerson, Madureira, Augusto M L, Miglior, Filippo, LeBlanc, Stephen J, Cerri, Ronaldo L A, Baes, Christine F, Schenkel, Flavio S

Publikováno v: Martin, Audrey A A; de Oliveira, Gerson; Madureira, Augusto M L; Miglior, Filippo; LeBlanc, Stephen J; Cerri, Ronaldo L A; Baes, Christine F; Schenkel, Flavio S (2022). Reproductive tract size and position score: Estimation of genetic parameters for a novel fertility trait in dairy cows. Journal of dairy science, 105(10), pp. 8189-8198. American Dairy Science Association 10.3168/jds.2021-21651

The dairy industry is moving toward selecting animals with better fertility to decrease the economic losses linked to reproductive issues. The reproductive tract size and position score (SPS) was recently developed in physiological studies as an indi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c237a3ed14d3edca588796f0d7cf7822
https://doi.org/10.3168/jds.2021-21651

Relationship of concentrations of cortisol in hair with health, biomarkers in blood, and reproductive status in dairy cows

Autor: Burnett, Tracy A., Madureira, Augusto M.L., Silper, Bruna F., Tahmasbi, Abdolmansour, Nadalin, Audrey, Veira, Douglas M., Cerri, Ronaldo L.A.

Publikováno v: In Journal of Dairy Science July 2015 98(7):4414-4426