Effects of cysteamine supplementation on cryopreserved buffalo bull semen quality parameters.

This work aimed to determine the effect of cysteamine (25, 50, 100 and 200 μM) incorporated during dilution on frozen thawed buffalo semen quality. Semen was collected twice weekly for 7 consecutive weeks from three Egyptian buffalo bulls using an artificial vagina. Semen samples were pooled and extended with a Tris-based extender, cooled, equilibrated and finally frozen in liquid nitrogen.