Figure 7.

Effect of dietary AA levels¹ on wing juvenile feathers number of Cobb 500 SF breeder females at 11, 17, and 21 wk of age. Results are presented as means ± SEM. n = 2 replicate pens per treatment of 85 pullets each. ^a-b Means not sharing a lowercase letter differ significantly by Tukey's test at P < 0.05 level. ¹ Low-AA, moderate-AA, standard-AA, and high-AA diets corresponding to 80, 90, 100, and 110% of the Cobb-Vantress (2018) recommendations, guided by dig Lys using balanced protein.