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Table 2 Mean of the traits in G1, selection responses (SR) mean ± standard errors, mean of predicted genetic responses (PGR) ± standard errors for the five traits

From: Eleven generations of selection for the duration of fertility in the intergeneric crossbreeding of ducks

Generation

 

G1

G2

G3

G4

G5

G6

G7

G8

G9

G10

G11

G12

Trait

 

Mean

           

F

SR

4.23

0.94 ± 0.21

0.50 ± 0.27

1.08 ± 0.32

1.40 ± 0.36

1.22 ± 0.41

1.91 ± 0.43

2.61 ± 0.50

2.57 ± 0.67

2.42 ± 0.70

4.36 ± 0.64

3.83 ± 0.84

 

PGR

 

0.17 ± 0.058

0.57 ± 0.060

0.99 ± 0.065

1.30 ± 0.061

1.54 ± 0.055

1.94 ± 0.041

2.39 ± 0.060

2.63 ± 0.064

2.85 ± 0.057

4.00 ± 0.055

4.14 ± 0.094

Ie

SR

11.83

0.70 ± 0.16

0.20 ± 0.20

0.20 ± 0.26

0.22 ± 0.28

0.17 ± 0.31

0.22 ± 0.33

0.36 ± 0.47

-0.37 ± 0.53

0.35 ± 0.90

1.59 ± 0.50

1.35 ± 0.68

 

PGR

 

0.09 ± 0.026

0.16 ± 0.028

0.17 ± 0.041

0.22 ± 0.032

0.26 ± 0.032

0.36 ± 0.026

0.47 ± 0.037

0.46 ± 0.038

0.79 ± 0.044

1.45 ± 0.034

1.59 ± 0.047

M

SR

1.84

0.04 ± 0.08

0.15 ± 0.09

0.15 ± 0.11

0.32 ± 0.11

0.40 ± 0.14

0.79 ± 0.13

0.60 ± 0.15

1.05 ± 0.29

0.64 ± 0.26

1.57 ± 0.32

1.92 ± 0.40

 

PGR

 

0.05 ± 0.019

0.17 ± 0.017

0.27 ± 0.019

0.29 ± 0.013

0.38 ± 0.016

0.53 ± 0.014

0.58 ± 0.019

0.73 ± 0.019

0.73 ± 0.022

1.08 ± 0.018

1.26 ± 0.022

Dm

SR

5.63

0.53 ± 0.22

0.51 ± 0.28

1.16 ± 0.34

1.56 ± 0.38

1.50 ± 0.43

2.10 ± 0.45

2.87 ± 0.50

2.89 ± 0.66

2.81 ± 0.74

4.45 ± 0.63

4.06 ± 0.79

 

PGR

 

0.18 ± 0.069

0.68 ± 0.072

1.20 ± 0.071

1.53 ± 0.063

1.85 ± 0.059

2.36 ± 0.045

2.82 ± 0.067

3.22 ± 0.069

3.32 ± 0.062

4.53 ± 0.060

4.80 ± 0.095

H

SR

2.39

0.90 ± 0.17

0.35 ± 0.21

0.94 ± 0.25

1.08 ± 0.28

0.83 ± 0.31

1.12 ± 0.33

2.02 ± 0.36

1.52 ± 0.57

1.77 ± 0.59

2.79 ± 0.55

1.91 ± 0.73

 

PGR

 

0.12 ± 0.043

0.37 ± 0.048

0.67 ± 0.052

0.97 ± 0.051

1.12 ± 0.044

1.33 ± 0.032

1.69 ± 0.047

1.75 ± 0.048

1.98 ± 0.042

2.60 ± 0.038

2.50 ± 0.070

  1. F = number of fertile eggs at candling (7th day of incubation); Ie = number of eggs set; M = total number of dead embryos; Dm = maximum duration of fertility (d); H = number of hatched mule ducklings