Results
Data pertaining to the effect of incubation temperature
on ontogenic developmental stages are presented in incubated at four different temperatures is represented in
Fig. 2. However, the embryos incubated at 36°C hatched
with gross morphological abnormalities, which resulted in a
drastic reduction in the rate of survival. Minimum duration
for hatching and times to reach different life stages were
observed at 31°C followed by 33 and 26°C except at the
two-cell stage (Table. 1). However, hatching percentage at
33°C was significantly (pb0.05) less than at 26 and 31°C
(Fig. 3). At the time of hatching, yolk absorption was
evident until 33°C and the size of yolk sac at three different
temperatures (26, 31 and 33°C) was 2.01± 0.018, 2.00±
0.01 and 1.8± 0.023mm, respectively