Abstract
In the study, in the conditions of the dairy complex of the agricultural Firm Tetyushskoe in the Ulyanovsk region, five groups of cows (26 heads per group) were fed according to detailed standards. Cows of groups II, III, IV and V were fed a new sorption-probiotic Supplement (SPD) Biopinnular at a dose of 0.25; 0.50; 0.75 and 1.00 % of dry matter. SPD was made from the natural mineral diatomite (sorbent) and probiotic microbiota (Bacillus subtilius). Such a formulation reduces impact on the body of endo- and exotoxins, in the digestive tract inhibits the development of pathogenic and stimulates the proliferation of lactic acid bacteria and bifidobacteria, enhances the digestibility and assimilation of nutrients, for exceeds efficiency and productivity of cows, improve the sustainability of milk and its products. On 100 EKE fed, 7.88, 12.54, 3.73 and 3.48 % more milk was obtained from cows of the experimental groups than from control cows (63.86 kg). The highest efficiency of the diet was observed in group III. The SPD corrects the environmental friendliness of milk and its processing products. The concentration of Pb and Cd in them did not exceed the MPC and was dependent on the dose of the fed Supplement. The least effective dose for reducing ecotoxicants in products was 0.25 %. Therefore, to increase the efficiency of the diet and reduce ecotoxicants content in dairy products, it is advisable to use SPD in diets at a dose of 0.50 % of dry matter.
Highlights
Intensive industrial agricultural production often leads to a breaking the natural content of organic and mineral substances in the food chain, as well as to accumulation of unusual chemical compounds
In the context of industrial dairy complexes, the problem of safe and high-quality milk production and its products is currently becoming especially important due to contamination of fodder and water consumed by cows with toxic elements
The cows of the experimental groups received in their diet different doses of the sorption-probiotic supplement “Biopinnular”
Summary
Intensive industrial agricultural production often leads to a breaking the natural content of organic and mineral substances in the food chain, as well as to accumulation of unusual chemical compounds. A special group of toxic substances is made up of heavy metals such as cadmium and lead salts and ions, as they weaken the activity of the animal’s basic systems in the organism and cause various diseases Milk from such cows does not meet the requirements of GOST (the state standard) due to the high content of eco-toxicants, does not have sufficient producibility and poses a threat to human health [2,3,4]. In this regard, to improve the safety and ecological cleanliness of milk and its processed products, it is most effective to use local natural minerals in cow feeding, which due to their nanoporous structure possess adsorption properties [5,6,7]. The research is aimed at clarifying the preparation’s effect in the diets of cows as it manifests in their productivity and assumed improvement in the safety and environmental cleanliness of milk and dairy products
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