Production Response and Digestive Enzymatic Activity of the Pacific White Shrimp Litopenaeus vannamei (Boone, 1931) Intensively Pregrown in Microbial Heterotrophic and Autotrophic-Based Systems

Table 2

Means ± SD of the production parameters of L. vannamei in the autotrophic (AS), heterotrophic (H), and the control systems.

	Survival (%)	Weight gain (g)	Total biomass (g·m^−3)	FCR	SGR%·week^−1
C	39.6±2.87^b	1.58±0.31^a	417.6±16.5^b	0.61±0.04^a	51.8±7.7^a
AS	68.0±3.42^a	0.87±0.31^b	475.3±22.9^a	0.54±0.03^b	45.0±6.6^a
HS	68.4±2.31^a	1.02±0.35^b	449.4±18.8^a	0.55±0.04^b	46.9±8.4^a

Different letters in the same column indicate significant differences (𝑃<0.05).