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The article highlights the results of studying the effect of a new probiotic nanometal globulin drug (PNMGD) on biomarkers of innate immunity of newborn calves. The experiment was performed on two groups of calves. Animals of the experimental group from the 2nd day of life were fed the drug for 5 days at a dose of 0.25 g/kg of body weight with milk, calves of the control group received milk without its addition. Before the experiment, and on the 10th, 20th, 35th day of the experiment, blood was taken from calves for clinical and biochemical studies. The obtained results show that the use of PNMGD causes an increase in the natural resistance of calves. This is indicated by an increase in the expression of such markers of innate immunity as globulins, circulating immune complexes and nitrogen metabolites by an average of 17–25%, as well as inhibition of seromucoid synthesis by 16.9%. Signs of anti-stress effect of the drug on the calves in the early postnatal period have been found. The positive effect of PNMGD on the state of innate immunity of calves can be regarded as one of the factors increasing the average daily weight gain by 32.2% in the first 36 days of life

Modulation of innate immunity of calves in the early neonatal period with probiotic nanometal globulin drug