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Table 2 Statistics on the estimations of the parameters of the egg laying curves adjusted individually to the F2 Japanese quail and used as quantitative traits in the genome scan

From: Search for QTL affecting the shape of the egg laying curve of the Japanese quail

Curve type Trait (definition) Mean Standard deviation Minimum Maximum
Model 1 [4] (N = 354) b (weekly rate of decrease in egg laying after peak) 0.0160 0.0416 -0.0068 0.3654
  c (indicator of 1/variance in sexual maturity) 3.223 3.155 0.1665 22.20
  d (number of weeks in test until sexual maturity) 4.186 4.842 0.6212 46.33
Model 2 [6] (N = 352) y P (3-week production at the egg laying plateau) 18.98 1.615 8.329 23.46
  t 2 (number of weeks in test until egg laying plateau) 5.272 1.935 2.299 20.25
  b4(weekly rate of change in egg laying after the plateau) -0.3497 0.5767 -4.698 0
Model 3 [7] (N = 308) k1 (proportion of peak production during the increasing phase of the curve) 0.8530 0.0944 0.3500 1.000
  k2(proportion of peak production during the decreasing phase of the curve) 0.6056 0.3082 0 0.992
  c2 (duration of peak egg production) 37.38 10.08 4.779 56.61