Dietary Oryzanol (Ory) Improved the Survival and Growth of Large Yellow Croaker (Larimichthys crocea) Larvae via Promoting Activities of Digestive Enzymes, Antioxidant Capacity, and Lipid Metabolism

Table 5

Effects of supplementation of Oryzanol on activities of main digestive enzymes of large yellow croaker larvae (means ± SEM, n = 3)¹.

Parameters	Diets (Ory supplementation level, mg/kg)
	Diet1 (0)	Diet2 (20)	Diet3 (40)	Diet4 (80)
Amylase (U/mg·protein)
PS	0.24 ± 0.06	0.17 ± 0.02	0.27 ± 0.04	0.28 ± 0.08
IS	0.65 ± 0.09	0.58 ± 0.09	0.57 ± 0.10	0.57 ± 0.06
Trypsin (U/mg·protein)
PS	0.33 ± 0.04^b	0.37 ± 0.01^ab	0.38 ± 0.07^ab	0.54 ± 0.03^a
IS	0.28 ± 0.03^b	0.38 ± 0.03^ab	0.46 ± 0.06^ab	0.61 ± 0.08^a
Try-IS/ (PS + IS)	0.50 ± 0.04	0.51 ± 0.03	0.55 ± 0.06	0.53 ± 0.06
Lipase (mU/mg·protein)
PS	0.49 ± 0.08	0.60 ± 0.14	0.50 ± 0.04	0.54 ± 0.03
IS	0.33 ± 0.06	0.44 ± 0.04	0.41 ± 0.03	0.36 ± 0.01
AKP (U/mg·protein)
BBM	0.35 ± 0.00^b	0.88 ± 0.12^a	1.10 ± 0.17^a	1.08 ± 0.11^a
LAP (mU/mg·protein)
BBM	1.88 ± 0.16^b	4.54 ± 0.42^a	3.55 ± 0.17^a	3.30 ± 0.36^a

Abbreviations. AKP, alkaline-phosphatase; LAP, leucine-aminopeptidase; PS, pancreatic segments; IS, intestinal segments; BBM, brush border membranes. ¹Data are presented as means ± SEM. Means in each row sharing the same superscript letter or absence of superscripts are not significantly different decided by one-way ANOVA with post-hoc Tukey HSD test (). SEM, standard error of means.