Characteristics of fresh and frozen semen of Red Chittagong Cattle

Semen production from breeding bulls used in Artificial Insemination (AI) program is of great importance cattle breeding. Good quality semen has positive effect on the fertility cows and heifers. The aim this study was to evaluate assessed as freezing ability Red Chittagong Cattle (RCC) bull with fresh-diluted frozen semen. parameters characteristics included were volume per ejaculate (ml), percentage mass motility, normal abnormal sperm, sperm concentration (million/ml). highest motility found ID No. 4 lowest 1 but 3 2 fresh Highly significant (p<0.001) correlation between 4, a negative (p<0.05) percentage. Two techniques followed production: Cork sheet Cryobath two times 15 30 minutes also applied. Variations by different bulls. Furthermore, highly (p<0.01) difference after both 3. In present study, variability potentiality (semen concentration) observed lower than crossbred due small size Chittagong, an indigenous zebu Bangladesh. Bangladesh Journal Animal Science. 51(1):25-30