An Evaluation of Replacing Soybean Meal with Proteolytic Soybean Meal in Low-Fish-Meal Diet on Growth Performance, Expression of Immune-Related Genes, and Resistance against Vibrio alginolyticus in White Shrimp (Litopenaeus vannamei)

Table 5

Digestive enzyme activities of Litopenaeus vannamei fed with experimental diets¹ (U/mg protein).

Parameters	Treatments
	Control	35	45	55	65
Amylase	^a	^ab	^b	16.70 ± 1.08^ab	^b
Lipase	^a	^b	^ab	66.15 ± 7.53^ab	^ab
Protease	^a	^b	^b	^b	^b

¹Data were expressed as from triplicate groups. Different superscript letters indicate significant differences ().