Table 5. Whole-body amino acid profiles (% protein) of fleshy prawn (Penaeus chinensis) post-larvae (initial mean body weight: 3 mg) fed the experimental diets for 40 days

Amino acids	Diets					Pr > F1)
	P0	P100	P200	P300	P400	ANOVA	Linear	Quadratic
Non-essential amino acids
Alanine	3.27 ± 0.30	3.05 ± 0.16	3.17 ± 0.14	3.12 ± 0.36	2.91 ± 0.16	0.468	0.166	0.760
Aspartic acid	14.20 ± 1.23	13.97 ± 0.17	13.21 ± 0.56	12.91 ± 0.76	13.58 ± 0.26	0.114	0.059	0.100
Cysteine	5.12 ± 0.10a	4.38 ± 0.15b	3.79 ± 0.16c	4.17 ± 0.23bc	4.00 ± 0.06bc	0.000	0.000	0.001
Glutamic acid	25.12 ± 1.92	24.83 ± 1.07	24.29 ± 1.15	24.93 ± 2.13	24.43 ± 0.25	0.942	0.627	0.806
Glycine	7.35 ± 0.22	6.88 ± 0.14	6.99 ± 0.85	7.44 ± 0.47	6.71 ± 0.04	0.297	0.400	0.865
Proline	4.71 ± 0.58	4.44 ± 0.09	4.83 ± 0.59	5.49 ± 0.58	4.42 ± 0.07	0.090	0.588	0.202
Serine	0.38 ± 0.08a	0.28 ± 0.06ab	0.23 ± 0.04b	0.19 ± 0.02b	0.18 ± 0.03b	0.100	0.001	0.116
Tyrosine	1.63 ± 0.29	0.75 ± 0.05	1.98 ± 0.40	2.50 ± 0.18	0.96 ± 0.09	0.000	0.363	0.003
Essential amino acids
Arginine	9.59 ± 0.27	10.00 ± 0.17	9.34 ± 0.20	9.27 ± 0.52	9.66 ± 0.14	0.087	0.274	0.315
Histidine	1.58 ± 0.10a	1.34 ± 0.15ab	1.24 ± 0.04b	1.21 ± 0.12b	1.25 ± 0.06b	0.008	0.002	0.018
Isoleucine	4.60 ± 0.67b	3.86 ± 0.16b	4.77 ± 0.24b	6.28 ± 0.47a	4.06 ± 0.28b	0.002	0.326	0.073
Leucine	7.36 ± 0.71	7.32 ± 0.40	7.72 ± 0.47	8.20 ± 0.58	7.37 ± 0.08	0.227	0.349	0.198
Lysine	11.38 ± 1.21	11.29 ± 0.84	11.43 ± 0.33	11.42 ± 0.76	11.34 ± 0.12	0.999	0.985	0.930
Methionine	3.44 ± 0.05b	3.30 ± 0.10b	3.80 ± 0.27ab	4.33 ± 0.46a	3.63 ± 0.11ab	0.009	0.021	0.070
Phenylalanine	2.74 ± 0.21	2.53 ± 0.11	2.62 ± 0.17	2.70 ± 0.18	2.47 ± 0.01	0.247	0.219	0.853
Threonine	0.34 ± 0.07b	0.28 ± 0.02b	0.36 ± 0.06ab	0.49 ± 0.02a	0.30 ± 0.03b	0.002	0.152	0.037
Tryptophan	0.11 ± 0.03a	0.07 ± 0.01ab	0.05 ± 0.00b	0.04 ± 0.02b	0.04 ± 0.01b	0.007	0.001	0.059
Valine	3.26 ± 0.12a	2.87 ± 0.15ab	3.02 ± 0.19ab	3.07 ± 0.24ab	2.70 ± 0.02b	0.018	0.011	0.873

Values are mean of triplicates (n = 3) and presented as mean ± SD.
The determined dietary PA levels were 16, 107, 226, 317 and 424 mg kg^–1 for P0, P100, P200, P300 and P400, respectively.
Significance probability associated with the F-statistic.
Different superscripts in each column indicate significant differences (p < 0.05).
ANOVA, analysis of variance.