extremely significantp < 0.01
The Main Xylanases Displayed Low Degrees of Enzymatic Hydrolysis of Corn AX Based on the corn–soybean meal–DDGS composite substrates, with the increase of the supplement levels of EX1, both RS and IVDMD showed extremely significant quadratic curve changes ( p < 0.01, R 2 > 0.9) at the level of 54 U/g to achieve the highest enzymatic hydrolysis extent ( Figure 1 A,B).