SLAUGHTER PARAMETERS OF BROILER CHICKENS AT DIFFERENT LEVELS AND RATIOS OF LYSINE AND THREONINE IN THE COMPOUND FEED

The article highlights the results of study influence different levels and ratios between lysine threonine in compound feed broiler chickens on slaughter indicators. experiment was conducted by group method 600 heads "Cobb-500" cross, which were divided into 6 groups 100 each. In combined first three against background basic level lysine, increased. birds other 3 groups, increased lysine. It established that highest indicators meat productivity for content feed, respectively, growing period (age 1–10 days) – 1.24 0.83%; second 11–22 1.14 0.78% third 23–42 1.09 0.70%. When using with an effective threonine, pre-slaughter live weight increases 0.65% (р<0.05); semi-carcasses - 2.12% mass cartridge carcass 3.85% pectoral muscle 12.27% pelvic limbs 12.77% yield 1.25% 2.50% output muscles 2.34% (p<0.05) limb 1.93% (p<0.05). No antagonism has been established. Neither increase nor caused a decrease or negative consequences. lysine-threonine ratio not Productivity regardless ratio, both amino acids feed. However, noted to 0.67: 1; 0.68: 1 0.70: 1.