Effects of four extenders on the quality of frozen semen in Arabian stallions.

Aim: Different types of extenders have a variety of components which show the tolerance effect on sperm protection during freezing procedures. In the present study, we have examined the impact of the extenders HF-20 and Tris, which were locally manufactured, and they are competing with commercial extenders INRA Freeze (IMV Technologies, France) and EquiPlus Freeze (Minitube, Germany) on the quality of horses frozen semen.

Materials And Methods: A total of 15 ejaculates from three healthy stallions were collected and cryopreserved in the same environment.