In conclusion, supplementation of arginine in the diet
could improve growth performance and breast meat
was sensitive to increasing dietary arginine. Based on
quadratic broken-line regression analysis, the arginine
requirement for male White Pekin ducks from 1 to 21
d of age is 0.95, 1.16, and 0.99% of the diet for maximum
weight gain, feed/gain, and breast meat yield,
respectively.