Atsuko, Ikeda, Yoichiro Hayashi, Juan Antonio Pereira, and Pablo Roberto Marini. “Age at First Calving and Its Relationship With Efficiency Indicators in Nelore Cows in a Grazing System in the Bolivian Tropics”. European Journal of Applied Sciences 8, no. 4 (August 31, 2020): 85–91. Accessed November 24, 2024. http://116.203.177.230/index.php/AIVP/article/view/8865.