showed a trendP = 0·07
At d7, the faecal concentration of putrescine was not affected by the diet, but the linear contrast showed a trend of linear increase with the reduction in CAM in the diet ( P = 0·07); the cadaverine concentration was affected by the diet ( P = 0·001), showing both a linear and a quadratic effect of CAM concentration ( P = 0·001), a high concentration in the CO group, followed by C12, C8 and C4 groups was observed.