Valverde Abarca, Anthony, Mónica Madrigal Valverde, Jacobo Solís Arias, and Wilfrido Paniagua Madrigal. 2019. “The Variability of the Estimation Methods of the Boar Sperm Concentration”. Agronomía Costarricense 43 (2). https://doi.org/10.15517/rac.v43i2.37793.