Grillo, G. F., Bourg de Mello, M. R., Guimarães, A. L. L., Resende, O. de A., Alves, P. A. M., da Silva, A. F., … Palhano, H. B. (2016). [Dairy cattle pregnancy rate in fixed time artificial insemination program with and without ultrasonic gynecologic screening.]. Brazilian Journal of Veterinary Medicine, 38(2), 187–194. Retrieved from https://bjvm.org.br/BJVM/article/view/126