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Table 2 Estimates of inbreeding depression for six commercial traits in Nile tilapia

From: Genomic dissection of maternal, additive and non-additive genetic effects for growth and carcass traits in Nile tilapia

 

BD

BWH

BL

FW

BT

FY

\({\text{b}}\)

− 3.27** (1.19)

− 371** (137)

− 7.57* (2.95)

− 156** (56)

− 7.08 (5.05)

− 6.90 (4.93)

Mean

8.89

407.31

22.38

143.83

40.67

32.83

\({\text{b}}_{\text{R}}\)

0.37

0.91

0.34

1.08

0.17

0.21

Difference

0.21

23.22

0.47

9.76

0.44

0.43

Unit

cm

g

cm

g

mm

%

  1. \({\text{b}}\)” is the regression coefficient of the trait on individual homozygosity (trait units per unit fractional homozygosity)
  2. “Mean” is the average value for the studied population (see last line in the table for units)
  3. \({\text{b}}_{\text{R}}\)” is the ratio between − b and mean value of the trait
  4. “Difference” is the difference in performance in trait units between the upper and lower 5 percentile for homozygosity in the population, which was 0.062
  5. Standard errors are in parentheses
  6. The six traits are: BD body depth, BWH body weight at harvest, BL body length, FW fillet weight, BT body thickness, FY fillet yield
  7. ** Indicates P < 0.01, and * indicates P < 0.05 for significant values