del Risco Garcés, S., Guevara Viera, R., Guevara Viera, G., Curbelo Rodríguez, L. and Soto Senra, S. 2019. Evaluation of Commercial Dairy Farms Productive Performance by the Annual Calving Pattern. I. Comparative Analysis on Calving Patterns Efficiency. Revista de Producción Animal. 19, 1 (Sep. 2019).