GROWTH OF RAINBOW TROUT FINGERLING AT DIFFERENT LEVELS AND RATIOS OF LYSINE AND ARGININE IN COMBINED FEED

The article highlights the results of research on influence different levels and ratios amino acids lysine arginine in compound feed growth consumption rainbow trout fingerling. For research, 6 groups were formed, 1 control 5 experimental, each with 500 samples. Combined feed, which differed only content arginine, was distributed 4 times a day at rate 3% weight fish. In main period lasting 40 days, level changed from 2.00 to 3.60% against background 2 3.00 (groups 1–3) 3.20% 4–6). If is taken as 100%, then varied 62.50 120.00%. We determined mass trout, calculated absolute, average daily relative growth, per kg growth. With an increase effective - 3.00% combined fingerling, fish increases by 2.47-2.71% (р˂0.05), increases, respectively, 3.04–3.24% (р˂0.05); 3.85% (р˂0.05) 14.52–15.62 (р˂0.05)%, costs decreased 2.91–3.02%. An increased this summer led 2.71-4.30% (р˂0.001), absolute 3.14–5.14% – 3.85–7.69% 12.69–26.49 (р˂0.001) %, 3.02–4.85%. basic 2.00% probably did not affect intensity our studies, no antagonism phenomena between established. A one-sided lead decrease high obtained ratio 1.05–1.20:1. most 1.13:1.