Vitamin injections, such as vitamins A and E, and minerals, such as selenium, zinc, and copper, can reduce somatic cell counts (SCC) in dairy animals and help them recover from mastitis. A study found that a continuous injection of 2.5 mg/kg of vitamin B2 for three days significantly decreased SCC in quarter milk at 3, 7, and 14 days after the initial injection. Another study found that subcutaneous injections of melatonin can reduce SCC in the milk of dairy cows with subclinical mastitis for at least 24 days after treatment. Compared to the control group, the milk yield showed a substantial increase in the T2 and T3 groups over the course of the study (p<0.05). On the other hand, neither season's T1 group's milk yield significantly differed from the control group's. Although there were significant differences in the milk yield between the T3 group on the 15th and 30th days of lactation in the winter (p<0.05), there were no differences in the milk yield on different days of lactation in the summer. Notably, milk yield was shown to be significantly impacted by the interaction between the two seasons and the groups (P = 0.022).Significant effects were seen on the somatic cell count (SCC) in colostrum/milk when days and groups (P = 0.001) and days and seasons (P = 0.001) interacted. The SCC in colostrum/milk peaked in all groups on the day of calving (p<0.05), and then declined significantly in the days that followed during lactation in both seasons (p<0.05).
