An Evaluation of Replacing Fish Meal with Fermented Soybean Meal in Diet of Hybrid Snakehead (Channa argus × Channa maculata): Growth, Nutrient Utilization, Serum Biochemical Indices, Intestinal Histology, and Microbial Community

Table 7

Effect of fermented soybean meal substituting fish meal on digestive enzymes of hybrid snakehead.

Items	CON	FM-30	FM-25	FM-20	FM-15
Amylase (U/mg prot)
Protease (U/mg prot)	^a	^ab	^bc	^c	^c

In the same row, values with different letter superscripts indicate significant differences ().