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Table 3 Quantitative trait loci (QTL) for Gompertz parameter estimates

From: Comparative analysis of quantitative trait loci for body weight, growth rate and growth curve parameters from 3 to 72 weeks of age in female chickens of a broiler–layer cross

Chromosome

Position (cM)

F-ratio1

CI2

Flanking markers

Additive effect ± SE

Dominance effect ± SE

VP (%)

Asymptotic body weight (W A ), g

   

2

283

12.0**

58 -295

ROS0074-ADL0114

150.3 ± 31.0

-18.9 ± 49.0

4.1

3

46

6.5†

1 - 205

MCW0083-HUJ0006

125.9 ± 37.0

71.5 ± 69.2

2.0

3

205

5.4†

2 - 236

ADL0306-ADL0237

106.1 ± 33.9

-67.9 ± 60.8

1.6

4

166

26.7**

143 - 183

ADL0241- MCW0180

352.6 ± 48.7

-137.4 ± 125.2

9.5

7

46

4.4†

0 - 93

LEI0064-ROS0019

65.37 ± 58.8

486.2 ± 175.3

1.3

8

13

8.6*

0 - 86

ROS0026-MCW0305

107.4 ± 28.1

74.3 ± 40.9

1.8

9

46

5.4†

21-115

ROS0078-MCW0135

83.3 ± 39.1

-177.6 ± 74.0

1.6

15

10

5.8†

0 - 45

LEI0083-MCW0080

108.7 ± 34.4

81.6 ± 62.6

1.8

27

0

18.7**

-

ROS0071

166.6 ± 28.0

46.7 ± 39.2

6.6

Age at inflection (T i, ), d

   

2

32

6.2†

8 - 376

ADL0343-ADL0176

-3.0 ± 0.9

0.1 ± 2.2

2.5

4

22

5.7†

0 -166

ADL0317-MCW0295

-2.1 ± 0.6

-0.6 ± 1.4

2.3

11

7

8.2*

0 - 63

MCW0097-ROS0111

-1.8 ± 0.5

-1.4 ± 0.8

3.5

Rate of exponential decay (K), g/d

   

4

17

5.6†

0 -169

ADL0317-MCW0295

8.0 E-4 ± 2.4E-4

3.0 E-4 ± 4.8E-4

2.3

7

93

5.4†

27 - 93

ROS0019-ADL0180

6.0 E-4 ± 1.8E-4

-3.0 E-4 ± 2.7E-4

2.2

28

0

5.0†

0 - 42

ROS0095-ROS0085

-3.0 E-4 ± 1.8E-4

7.0 E-4 ± 2.6E-4

2.0

Instantaneous growth rate (L), g/d

   

1

541

4.0†

0 - 600

ROS0081-LEI0079

0.002 ± 0.001

0.003 ± 0.002

1.5

4

144

4.9†

0 - 183

ADL0241-MCW0180

0.01 ± 0.0

0.01 ± 0.01

1.9

Hatching weigh (W 0 ) , g

   

8

78

6.2†

7 - 87

MCW0100-ROS0075

5.0 ± 1.5

-4.2 ± 2.7

2.6

13

62

4.9†

7 - 71

MCW0340-ADL0225

4.3 ± 1.4

2.3 ± 2.7

1.9

  1. 1Significant at 0.05 (*) and 0.01 (* *) levels experiment-wide, and () suggestive.
  2. 2 CI = 95% confidence interval.
  3. The position on the chromosome with supporting F-values, additive and dominance effects and the proportion of phenotypic variance (VP) explained by QTL for an F2 broiler layer cross. Dominance effects in bold are >2 SE (P < 0.05).