Table 2 Average survival ratios of early generations of 2nNCRC embryos from 2nCOC (♀) x 2nBSB (♂).

From: A new type of homodiploid fish derived from the interspecific hybridization of female common carp × male blunt snout bream

2nNCRC

No. of fertilized eggs

No. of embryos in hatching period

Hatching rate (%)

P value (t-test)

Total

Mean

SD

F1

6 × 100

23

3.83

1.46

3.83 ± 1.46

<0.01

F2

6 × 100

485

80.83

1.16

80.83 ± 1.16

<0.01

F3

6 × 100

496

82.67

1.08

82.67 ± 1.08

<0.01

  1. SD: Standard deviation. Hatching rate = number of surviving embryos at the stage of hatching/number of fertilized eggs × 100%. Embryonic development was observed at a water temperature of 22 °C using a Meiji RZ Stereo microscope. One hundred fertilized eggs selected at random from each group were examined, and six replicates of each fish were included. The criteria for evaluating the early embryonic development of 2nNCRC were described by Liu (2001).
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