De Rensis, F., Ronci, G., Guarneri, P., Nguyen, B. X., Presicce, G. A., Huszenicza, G., & Scaramuzzi, R. J. Conception rate after fixed time insemination following ovsynch protocol with and without progesterone supplementation in cyclic and non-cyclic Mediterranean Italian buffaloes (Bubalus bubalis). Theriogenology, 63(7), 1824-1831. https://doi.org/10.1016/j.theriogenology.2004.07.024