Effects of Fresh Whey on Immune System and Milk Production in Holstein Fresh Cows

The aim of this study was to investigate the effects of various amounts of fresh whey on immune system and milk production performance in Holstein fresh cows. 36 Holstein cows after parturition based on their lactation and body condition score (BCS) was assigned into four groups and named subsequently control treatment (basic ration), A treatment (basic ration + 5 kg fresh whey), B treatment (basic ration + 7.5kg fresh whey) and C treatment (basic ration + 10 kg fresh whey).There were no significant differences in the amount of dry matter intake (DMI) on the 0, +7, +14 days after parturition between treatments but the amount of DMI on the +21 day after parturition was significant in the control treatment and A treatment than B and C treatment and was (19.14 and 19.26 versus 18.12 and 18.01 kg/day) (P≤0.05). It was shown that consumption fresh whey more than 5 kg per day can reduce DMI. There were no significant differences among treatments regarding blood cells at 21 day after parturition unless nutrophills that was more in B and C treatments than A and control treatments (p<0.05). It was demonstrated that consumption of more than 5 kg fresh whey per day could enhance the immune system after parturition. There were no significant differences on the milk production performance and body condition score (BCS) between treatments after parturition.