Influence of probiotics “Stimix Zoostim” and “Normosil” on exchange processes and intensity of growth of calves

The range of probiotics is constantly expanding, new probiotic supplements are entering the market, requiring an assessment of the effectiveness of their use. As domestic and international experience has shown, probiotic supplements produced a variety of antibiotic compounds that suppressed the growth of pathogens, prevented diseases of the gastrointestinal tract, increased the activity of digestive enzymes, and contributed to the formation of antimicrobial proteins. The results of the influence on the feces microflora, hematological parameters, immune blood resistance, nutrient digestibility and growth rate of calves of the milk period of probiotics Stimix Zooostim and Normosil at a dose of 10 ml per head per day at the age of 10-20 days, 15 ml - at the age of 21-90 days. Probiotics have a high probiotic activity, having a positive effect on the calf microbial landscape of feces. As a result of feeding probiotics, the number of normal flora has increased significantly: lactobacilli and bifidobacteria, as well as a reduction in Escherichia. Within the physiological norm, an increase in the number of erythrocytes, hemoglobin, and j-globulins occurred. Phagocytic reaction in the blood serum of the experimental groups increased, which shows a high response of the body to the penetration of infectious agents. Phagocytic activity in the group with probiotic Stimix Zoostim was higher by 4.8% and with probiotic Normosil by 4.4% than in the control. The use of probiotics in the amount of 10 ml per 1 head per day at the age of 10-20 days, 15 ml at the age of 21-90 days also had a positive effect on the digestibility of dietary nutrients, on the growth rate of calves and feed consumption per 1 kg of body weight. The economic effect per 1 calf was 149.23 and 157.0 rubles, respectively.

телята, пробиотики, фекальная микрофлора, гематологические показатели, использование питательных веществ, иммунная резистентность крови, среднесуточный прирост, потребление корма, экономическая эффективность, calves of the dairy period, probiotics “Stimix Zooostim” and “Normosil”, fecal microflora, hematological parameters, nutrient use, immune blood resistance, average daily gain, feed consumption, economic efficiency