Borgou bull semen characteristics and potential use in artificial insemination

Abstract

A study was carried out in Benin subequatorial climate during the long rainy season to assess the potential for artificial insemination of Borgou bulls, taking into account semen characteristics. One ejaculate a week was collected from ten bulls and two a week from six bulls for three months. The results obtained for semen collected once a week were on average: volume 3.43 mi; mass motility 3.85 (0-5 scale); individual motility 75.7 %; sperm concentration 1 .19 x 10⁹ sperm/ml; total sperm 4.09 x 10⁹. For semen collected twice a week, the results were: volume 3.16; mass motility 4.30; individual motility 79.5 %; concentration 0.76 x 10⁹ sperm/ml; total sperm 2.45 x 10⁹.