Abstract
The article presents the results of a study to determine the effect of ultra-large silicon dioxide and amino acids (arginine + lysine+methionine) both separately and in a complex on the live weight of broiler chickens. The average daily gains, as well as the coefficients of digestibility of the main components of feed were determined. It was found that the combined use of UFP SiO2 and amino acids increased the live weight of the experimental bird for 21 days by 6.1% (p≤0.05), and by the end of the experiment for 12.3 % (p≤0.05). The average daily increase 83.18 g in live weight was noted by the end of the experiment, which is 12.77 grams higher than in the control group. There was also an increase in the digestibility coefficients of dry matter of mixed feed by 4.2% (p≤0.01), organic matter – by 3.7% (p≤0.05), crude fat and crude protein - by 3.4% (p≤0.05). Thus, the data obtained in the experiment are consistent with the results of other researchers describing the effect of preparations of various ultra-large metals and amino acids on the productivity of poultry.
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