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Table 1 Optimized genetic progress in yearling weight (EBV) and inbreeding (F) compared with values observed in a closed nucleus population of Menz sheep selected for yearling weight

From: Optimization of selection for growth in Menz Sheep while minimizing inbreeding depression in fitness traits

Birth year

Average EBV (kg)

Average F (%)

Percent progeny with F > 1%

 

Optimized

Observed

Optimized

Observed

Optimized

Observed

1998

0.31

0.87

0

0

0

0

2000

1.33

1.83

0

0

0

0

2001

1.87

1.49

0

0

0

0

2002

3.36

2.88

0

0.28

0

4.7

2003

4.05

3.97

0

0.19

0

6.0

2004

5.36

4.96

0

0.23

0

6.1

2005

5.94

5.30

0

0.47

0

13.9

2006

6.58

6.44

0.14

0.86

3.1

24.7

2008

7.58

7.16

0.32

1.67

5.1

50.0