Influence of stocking ratios on production and stress indicators in Channa striata and Heteropneustes fossilis polyculture systems

Open Access

Table 2

Growth performance of Channa striata and Heteropneustes fossilis in different stocking ratio treatments (mean ± SE).

Species	Parameter	T1 (1:1)	T2 (3:7)	T3 (7:3)
C. striata	Initial weight (g)	15.3 ± 0.4	15.4 ± 0.3	15.2 ± 0.5
	Final weight (g)	42.7 ± 1.2^c	39.5 ± 1.5^b	35.2 ± 1.6^a
	Weight gain (g)	27.4 ± 1.1^c	24.1 ± 1.3^b	20.0 ± 1.4^a
	SGR (%/day)	1.88 ± 0.05^c	1.72 ± 0.06^b	1.54 ± 0.07^a
	Survival rate (%)	93.3 ± 1.9^b	91.1 ± 2.1^b	82.5 ± 2.4^a

H. fossilis	Initial weight (g)	15.1 ± 0.5	15.0 ± 0.4	15.2 ± 0.3
	Final weight (g)	38.2 ± 1.3^c	33.5 ± 1.2^b	29.1 ± 1.4^a
	Weight gain (g)	23.1 ± 1.1^c	18.5 ± 1.0^b	13.9 ± 1.2^a
	SGR (%/day)	1.69 ± 0.06^c	1.45 ± 0.05^b	1.15 ± 0.07^a
	Survival rate (%)	90.0 ± 2.2^c	81.0 ± 2.5^b	72.2 ± 2.8^a

Combined	FCR	1.85 ± 0.08^a	2.04 ± 0.10^b	2.31 ± 0.12^c
	Total biomass/tank (g)	1215.5 ± 28.4^c	1127.8 ± 24.3^b	1008.2 ± 30.2^a

Different superscripts in the same row indicate significant differences (p < 0.05).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.