Marini, Pablo Roberto, Pablo Biga, and Ricardo Di-Masso. “A Multivariate Characterization of Productive-Reproductive Efficiency and Age at First Calving in Holstein Cows”. Agronomía Mesoamericana 32, no. 1 (January 1, 2021): 34–44. Accessed March 28, 2024. https://revistas.ucr.ac.cr/index.php/agromeso/article/view/43184.