highly significantP < 0.01
Differences were considered significant at P < 0.05 and highly significant at P < 0.01.
Differences were considered significant at P < 0.05 and highly significant at P < 0.01.
The MCP content in the E group showed an increasing trend.
There was no significant change in RF polysaccharide content in the E1 group compared to the CON group ( P > 0.05); the E2 group showed a decreasing trend but no significant change ( P > 0.05); the E3 group showed a significant decrease ( P < 0.05), and also a significant decrease when compared to the E2 and E1 groups ( P < 0.05); E4 did not continue to decrease, but was still significantly lower when compared to the CON group ( P < 0.05).