The Effect of Direct-Fed Microbials Plus Enzymes Supplement on the Growth Performance of Holstein Friesian Calves

The study was carried out to determine the effect of Direct-fed Microbials (DFM) plus digestive enzymes supplement on growth performance of Holstein Friesian calves. Eighteen Holstein Friesian calves were assigned to 1 of 2 treatments, DMF plus enzymes supplement, Control with no DMF plus enzymes additive. The DMF plus enzymes supplement in pre-weaning period was offered to calves after mixing with milk. Then, it was given with starters during post-weaning period. Total of 4 kg head 1 whole milk was fed calves in the morning and evening. While, starter ration was limited 2 kg day 1, dry hay and water were offered ad libitum. Calves were weaned abruptly at 8 weeks of ages. The overall results revealed that weight and weight gains in various stages of the growth of the calves as well as gains in body measurements and feed efficiency ratio were not significantly affected by feeding DMF plus enzymes supplement. However, the DFM plus enzymes supplement resulted in a decrease in the incidence of diarrhea.