Inoculum concentration and incubation time are important factors in ensuring sufficient viable cell count in the fermented
product. Viable cell count increased significantly (P 0.01) with increasing inoculum concentration and incubation
time. However, the count increased initially with increasing temperature upto 40 C then it decreased. Optimal temperature for yogurt fermentation with standard cultures is usually 43 C; however, lower temperatures of about 37 C are optimum for growth of probiotic strains.