Table 2 Growth and nutrient utilization of Pangasianodon hypophthalmus fed with varying levels of dietary protein and lipids.

From: Optimizing dietary protein and lipid levels for better growth performance, nutrient retention and flesh quality of grow-out striped catfish (Pangasianodon hypophthalmus)

Treatments	IBW ¹	FBW ²	WG ³	WG% ⁴	SGR ⁵	FCR ⁶	FER ⁷	PER ⁸	Survival %
One-way ANOVA
DP28/DL4	167.60 ± 0.31	313.41 ± 1.17^c	145.81 ± 0.88^c	87.00 ± 0.39^c	1.04 ± 0.01^c	1.81 ± 0.03^a	0.55 ± 0.01^c	1.92 ± 0.03^e	100
DP28/DL6	167.79 ± 0.14	297.03 ± 6.45^b	129.24 ± 6.32^b	77.02 ± 3.70^b	0.95 ± 0.03^b	2.11 ± 0.11^b	0.47 ± 0.02^b	1.69 ± 0.09^cd	100
DP28/DL8	167.70 ± 0.40	314.51 ± 2.28^c	146.81 ± 2.43^c	87.55 ± 1.55^c	1.05 ± 0.01^c	1.85 ± 0.03^a	0.54 ± 0.01^c	1.92 ± 0.03^e	100
DP30/DL4	168.07 ± 0.04	312.45 ± 4.98^c	144.38 ± 5.02^c	85.91 ± 3.01^c	1.04 ± 0.03^c	1.88 ± 0.07^a	0.53 ± 0.02^c	1.75 ± 0.06^d	100
DP30/DL6	168.00 ± 0.35	289.71 ± 2.81^b	121.71 ± 2.46^b	72.44 ± 1.32^b	0.91 ± 0.01^b	2.24 ± 0.04^b	0.45 ± 0.01^b	1.47 ± 0.04^bc	100
DP30/DL8	167.98 ± 0.13	315.28 ± 1.99^c	147.31 ± 0.95^c	87.70 ± 0.55^c	1.05 ± 0.01^c	1.85 ± 0.01^a	0.54 ± 0.04^c	1.79 ± 0.01^de	100
DP32/DL4	168.06 ± 0.12	273.52 ± 2.38^a	105.46 ± 2.45^a	62.75 ± 1.48^a	0.81 ± 0.02^a	2.59 ± 0.06^c	0.39 ± 0.01^a	1.18 ± 0.03^a	100
DP32/DL6	167.41 ± 0.33	307.11 ± 2.86^c	139.70 ± 2.56^c	83.45 ± 1.38^c	1.01 ± 0.04^c	1.94 ± 0.03^a	0.51 ± 0.03^c	1.58 ± 0.02^b	100
DP32/DL8	167.64 ± 0.15	268.17 ± 1.82^a	100.53 ± 1.92^a	59.97 ± 1.18^a	0.79 ± 0.01^a	2.70 ± 0.05^c	0.37 ± 0.01^a	1.14 ± 0.02^a	100
p-value	0.525	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	-
Two-way ANOVA
Dietary protein level (%)
28	167.70	308.32^b	140.62^b	83.86^b	1.01^b	1.92^a	0.52^b	1.84^c	-
30	168.02	305.81^b	137.80^b	82.01^b	1.00^b	1.99^b	0.51^b	1.67^b	-
32	167.70	282.93^a	115.23^a	68.72^a	0.87^a	2.41^b	0.42^a	1.30^a	-
SEM	0.142	1.914	1.875	1.103	0.011	0.032	0.007	0.025	-
p-value	0.217	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	-
Dietary lipid level (%)
4	167.91	299.80	131.89	78.55	0.96	2.09	0.49	1.62	-
6	167.73	297.95	130.22	77.63	0.95	2.10	0.48	1.58	-
8	167.77	299.32	131.55	78.40	0.96	2.13	0.47	1.64	-
SEM	0.142	1.914	1.875	1.103	0.011	0.032	0.007	0.025	-
p-value	0.653	0.780	0.804	0.820	0.905	0.633	0.435	0.458	-
DP × DL
p-value	0.551	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	-

* DP, dietary protein; DL, dietary lipid;.
¹IBW, initial body weight in grams; ²FBW, final body weight in grams; ³WG, weight gain; ⁴WG%, weight gain percentage; ⁵SGR, specific growth rate (%/day); ⁶FCR, feed conversion ratio; ⁷FER, feed efficiency ratio; ⁸PER, protein efficiency ratio. Data are expressed as mean ± standard error of the mean (SEM), n = 3. Values within columns with different uppercase superscripts indicate significant differences (p < 0.05). Statistical analyses were performed using one-way and two-way ANOVA followed by multiple comparisons. Statistical significance was defined as p < 0.05 for all analyses.

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Table 2 Growth and nutrient utilization of Pangasianodon hypophthalmus fed with varying levels of dietary protein and lipids.

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