Table 1. Initial body weight (IBW), final body weight (FBW), special growth ratio (SGR), survival rate, feed intake (FI), feed efficiency (FE), hepatopancreas weight (HW), protein content (HPC) and somatic index (HSI) and intestinal weight (IW), intestinal protein content (IPC), intestinal length (IL), intestinal length index (ILI) and intestinal somatic index (ISI) and folds height (µm) in the proximal intestine (PI), mid intestine (MI) and distal intestine (DI) of juvenile Jian carp (Cyprinus carpio var. Jian) exposed to dietary β-conglycinin for 42 days (in vivo experiment).

Indexes	Control	β-conglycinin alone	β-conglycinin plus Gln
IBW (g/fish)	5.37±0.04a	5.36±0.01a	5.36±0.01a
FBW (g/fish)	28.68±0.92a	24.34±0.86b	27.15±0.60a
SGR	3.99±0.09a	3.60±0.08b	3.86±0.05a
Survival rate	100.00±0.00a	100.00±0.00a	100.00±0.00a
FI (g/fish)	30.21±0.05a	26.42±0.07c	28.79±0.01b
FE	87.69±3.50a	81.60±3.47b	86.01±2.35ab
HW (g/fish)	1.18±0.22a	0.60±0.12c	0.73±0.24b
HPC	4.15±0.20ab	4.01±0.32b	4.36±0.19a
HSI	3.56±0.40a	3.07±0.34b	3.39±0.86ab
IW (g/fish)	1.10±0.20a	0.62±0.15c	0.75±0.19b
IPC	2.35±0.16a	1.99±0.13b	2.41±0.21a
IL (cm/fish)	17.93±2.34a	14.10±1.58c	15.09±2.08b
ILI	170.22±21.54a	160.42±13.04b	164.49±18.85ab
ISI	3.23±0.27a	3.13±0.39a	3.25±0.36a
PI folds heights	700.44±70.72a	536.80±22.42c	633.53±37.97b
MI folds heights	443.58±42.94a	378.74±23.12b	425.99±46.47ab
DI folds heights	524.14±46.60a	447.93±45.50b	482.20±34.71ab

Data represent means ± S.D. Values within the same row with different superscripts are significantly different (P<0.05).

SGR = 100× (ln final weight - ln initial weight)/number of days.

FE = 100× (g weight gain/g feed intake).

HPC = 100×(g hepatopancreas protein/g wet hepatopancreas weight).

HSI = 100×(g wet hepatopancreas weight/g wet body weight).

IPC = 100×(g intestine protein/g wet intesitine weight).

ILI = 100× (cm intestine length/cm total body length).

ISI = 100×(g wet intestine weight/g wet body weight).