The Effect of Probiotics on health status and Performance of Holstein calves

The positive effect of probiotics on performance and health status of suckling calves has long been demonstrated. In this regards, in overall, 24 male and female calves with an average weight of 3 ± 50 kg and the age of about 3 ± 40 for the experimental period of 45 days was selected. Treatments include 1) control, 2) group receiving Lactobacillus casei stain, 3) the group receiving Lactobacillus acidophilus strain. The admixture of experimental treatments with physiological serum (carrier) was supplemented to the calves. The outputs showed that the supplementation of probiotics based lactobacilli strain had no significant effect on feed intake. Although, supplementation of lactobacilli strains increases the weight of the calves were in the entire period (p<0.05). Also, the results demonstrated that the treatments containing probiotics improve feed efficiency in a period of weaning as well as in the entire period of the experiment(p <0.05).The addition to, supplementation of probiotics in the diet of calves significantly increased blood glucose content and reduced blood urea nitrogen (p <0.05). Inversely, there is no significant effect on the amount of total protein, albumin, triglycerides and blood cholesterol was shown. Furthermore, observed results showed that the use of probiotic supplements can improve health indicators were numerically but not statistically. According to all outputs, we can conclude the supplementation of probiotics in the diet of calves improves performance and has a beneficial effect on blood parameters.