Name of stimulant  Dose Mean No. of fertilized eggs and rate of fertilization (%)
Male Female 26°C 28°C  30°C 
Pituitary gland extract 25 mg/kg
50 mg/kg
40 mg/kg
120 mg/kg
1994bm ± 29
4134dn ± 51
46%
76%
2215ao ± 30
4524do ± 33
50%
80%
2126an ± 35
4026cm ± 58
48%
72%
0.4 ml/kg  0.4 ml/kg 
1.0 ml/kg
0.8 ml/kg
2.0 ml/kg
1860am ± 53
3827cm ± 40
41%
72%
2325bo ± 37
4212cn ± 37
45%
77%
2093an ± 36
3780bm ± 31
45%
70%
Values (mean ± SD) within columns indicated by different superscript letters (a,b,c,d) and values (mean ± SD) within rows indicated by different superscript letters (m, n,o) are significantly different (DMRT, p<0.05).
Table 3: Effects of stimulants and temperature on fertilization rate of eggs of Clarias batrachus.
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