At the end of the 24-h incubation period the molar proportion of acetate, propionate, and butyrate remained unchanged in all enzyme treatments. Molar proportion of acetate was somewhat higher with CE treatment, and a slight reduction was perceived with XY and CE + XY. However, the decrease in acetate from XY and CE + XY was not enough to alter the acetate:propionate (A:P), which was similar across treatments. Very minor increases in propionate were experienced with CE and CE + XY, while XY supplementation caused an insignificant reduction compared with the control. With the effect of XY and CE + XY butyrate production was encouraged, although it was not a noticeable increment