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 5

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

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

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.