USAGE OF ANTIOXIDANTS SUPPLEMENTATION IN BULL SEMEN, A WAY TO IMPROVE REPRODUCTIVE PERFORMANCES OF CATTLE.

Improving livestock reproductive performances is a high priority of worldwide breeders. The knowledge on cows accurate estrous detection associated with a good semen bull quality and artificial insemination appropriate timing, contribute in improving animal production yield. According to some studies, it is possible to achieve good quality semen from bulls by applying methods such the selection of bull presenting good conformation and health, followed by the collection and analysis of their semen, to be insured that this contains enough well fitted spermatozoids. For better success of artificial insemination, it is important to have a good mastery of the technique. The semen should also be protected against any agent of destruction and degeneration of spermatozoa, such as oxidizing processes. The present review gathers some technics of collecting and analyzing semen bull as well as some types of semen extender supplementation with antioxidant substances. [ABSTRACT FROM AUTHOR]