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Table 3 Genetic parameters for the variance of harvest weight, length, depth, and width

From: Genetic parameters for uniformity of harvest weight and body size traits in the GIFT strain of Nile tilapia

Parameter

Harvest weight

Length

Depth

Width

a \( \upsigma _{{{\text{A}}_{ } }}^{2} \)

0.343 (0.068)

0.156 (0.041)

0.184 (0.042)

0.203 (0.048)

\( \upsigma _{{{\text{e}}_{ } }}^{2} \)

1.747 (0.034)

1.924 (0.038)

1.862 (0.036)

1.696 (0.033)

b \( \upsigma _{{{\text{g}}_{ } }}^{2} \)

0.040 (0.021)

0.031 (0.021)

0.031 (0.018)

0.073 (0.020)

c \( \upsigma _{{{\text{k}}_{ } }}^{2} \)

0.078 (0.027)

0.098 (0.029)

0.022 (0.023)

0.062 (0.023)

d \( \upsigma _{{{\text{m}}_{ } }}^{2} \)

0.009 (0.009)

–

0.023 (0.011)

–

e \( {\text{GCV}}_{{{\text{V}}_{\text{e}} }} \)

0.58

0.39

0.42

0.45

  1. Standard errors are indicated between brackets
  2. aAdditive genetic variance was calculated as four times the sire-dam variance
  3. bGroup variance
  4. cKin variance
  5. dSocial maternal variance
  6. eGenetic coefficient of variation at variance level