Interaction among xylanase (XL) level, amino acid (AA) density (10% difference between low and high level), and additional fat (AF) postpellet (0, +1.17%) in corn-soybean diets with dried distillers grains with solubles for Ross 708 male broilers on AMEn (kcal/kg) in panel A (pooled SEM = 19, CV = 2.57%, P < 0.001), apparent digestibility coefficient (ADC) of gross energy (GE), % in panel B (pooled SEM = 0.41, CV = 1.84%, P < 0.001), and ADC of crude protein (%) in panel C (pooled SEM = 0.65, CV = 3.42%, P < 0.001) at 17 d of age. a–hMeans in bars not sharing a common superscript are significantly different (P < 0.05) by Tukey's test. Means represent 6 replicate pens of 22 broilers each per treatment.