METHOD FOR APPLICATION OF PROLYSER SIMBIOTIC PREPARATION BASED ON ESCHERICHIA COLI VL-613 STRAIN FOR BROILER CHICKENS OF HIGHLY PRODUCTIVE CROSSES Russian patent published in 2013 - IPC A23K1/16 A61K35/74 C12R1/19 

FIELD: food industry.

SUBSTANCE: invention relates to biotechnology, agriculture and zootechnics and may be used for industrial-scale breeding of broiler chickens of highly productive crosses. Prolyser symbiotic preparation based on Escherichia coli VL-613 is activated by way of resuspension with cooled boiled water or sterile physical solution at a temperature of 25°C - 37°C. The preparation in a dissolved form is given to drink to broiler chicken during 1 hour after the preparation activation in accordance with the following scheme. From the 8^th day since the chicken birth and to the 22^nd day the preparation is given in an amount of 100 mln microbial cells per day (per 1 chicken of "Кобб-500" and "Авиан-48" crosses) or 50 mln microbial cells per day (per 1 chicken of "Смена-7" cross). From the 22^nd day and up to broiler chickens growing completion the preparation is given in an amount of 75 mln microbial cells per day (per 1 chicken of "Кобб-500" and "Авиан-48" crosses) or 50 mln microbial cells per day (per 1 chicken of "Смена-7" cross). The preparation is administered orally, preferably - during the morning feeding. The concentration of Escherichia coli VL-613 is equal to 1.75-3.05 billion microbial cells of the preparation per 1 broiler chicken throughout the whole growing cycle.

EFFECT: invention allows to fully replace synthetic lisyn in liquid given to drink to broilers, to increase poultry average daily weight gain, to increase the yield of Category 1 meat and to reduce the concentration of Escherichia coli VL-613 cells.

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