Table 2. Percentage of survival, the average length of growth, and average daily weight gain of juvenile crayfish for 50 days of maintenance

Immersion time (h)	Treatments (dose)	Survival (%)	The average length of growth (mm)	Average daily weight gain (g/d)
18	K	55.00 ± 0.05^a	0.98 ± 0.09^a	0.016 ± 0.001^a
	M	70.00 ± 0.05^b	1.45 ± 0.23^b	0.024 ± 0.002^b
	S2	65.00 ± 0.05^b	1.21 ± 0.26^bc	0.021 ± 0.003^b
	S4	76.67 ± 0.03^c	1.59 ± 0.20^bd	0.030 ± 0.000^c
30	K	63.33 ± 0.08^a	1.05 ± 0.12^a	0.019 ± 0.002^a
	M	75.00 ± 0.05^b	1.54 ± 0.11^b	0.029 ± 0.003^b
	S2	76.67 ± 0.03^b	1.53 ± 0.11^bc	0.027 ± 0.001^b
	S4	81.67 ± 0.03^c	1.67 ± 0.09^bd	0.032 ± 0.001^c

Means (± SE) within a column followed by different superscript letters were significantly different (p < 0.05).
K, control; M, 17α-methyl testosterone 2 mg/L; S2, sea cucumber steroid 2 mg/L; S4, sea cucumber steroid 4 mg/L.