Some reproductive traits of buffalo bulls under desert conditions of Egypt

The present study was carried out under the desert conditions of Wadi-El-Natroun Animal Production Station where 7 bulls were used for a period of 4 years. The following points were investigated. 1. Seasonal variations in the libido and semen characters. 2. Variation in the libido and semen characters due to age. The libido and semen characters were found higher during autumn and from buffalo bulls aged 4-6 years