Recent advances in preservation of boar semen in liquid state: An overview

Abstract

Current century of artificial insemination (AI) of female pigs, knowledge about the preservation of boar semen is still very limited. In pig liquid semen preservation was mainly done at 15-20 ˚C for 5 days. The short-term and long-term extenders are used according to the time required for AI. In short-term extender both viability and fertility of semen was restored whether in long-term storage although the viability of semen was maintain but the fertility was extremely reduced with the time of preservation. The present study would try to give an overview about the preservation technique of boar semen in terms of extender, preservation time, preservation temperature, viability and fertility.