Comparative Study on Growth Index and Nutritional Quality of Female Chinese Mitten Crab Eriocheir sinensis Selected at Different Growth Periods in Rice-Crab Culture Systems

Table 4

Amino acid composition of female E. sinensis muscle in rice-crab coculture system at different developmental periods (% wet weight).

Amino acid composition	Group
	D0	D15	D31	D46	D62
Isoleucine	^b	^ab	^a	^a	^ab
Leucine	^b	^ab	^a	^a	^a
Lysine	^a	^a	^a	^a	^a
Methionine	^a	^a	^a	^a	^a
Phenylalanine	^b	^a	^a	^ab	^a
Tyrosine	^b	^ab	^a	^ab	^ab
Threonine	^b	^ab	^a	^a	^a
Valine	^b	^ab	^a	^a	^a
EAA	^b	^ab	^a	^a	^ab
Histidine	^b	^a	^ab	^ab	^a
Arginine	^a	^a	^a	^a	^a
Glutamic acid	^a	^a	^a	^a	^a
Aspartic acid	^a	^a	^a	^a	^a
Alanine	^c	^ab	^ab	^a	^b
Glycine	^c	^bc	^b	^b	^a
Serine	^b	^b	^ab	^a	^ab
Proline	^d	^c	^c	^b	^a
NEAA	^b	^ab	^a	^a	^a
TAA	^b	^ab	^a	^a	^a
EAA/TAA	^a	^a	^a	^a	^a

Note: the data are represented as the deviation (). Values in the same row with different letters are significantly different (). EAA: essential amino acids; NEAA: nonessential amino acids; TAA: total amino acids.