TY JOUR TI THE IMPORTANCE OF FORAGE BEANS PROTEIN QUALITY IN BROILER CHICKEN FEEDING KW broiler-chicken KW ration KW forahge beans KW protein KW amino acid KW amino-acid index KW biological value of protein JO Vestnik of Astrakhan State Technical University AU Ivanova, S.. PY 2017 IS 2017 PB Astrakhan State Technical University