HCl were added to the doseresponse
diet at the expense of corn starch,
sodium bicarbonate, and NaCl to create 6 levels
of Lys ranged from 0.91% to 1.51% in diet.
Optimal Lys for feed conversion ratio, breast
meat yield, and thigh meat yield were estimated
at 1.15%, 1.21%, and 1.16% of diet, respectively,
based on linear broken-line regression.