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Table 5 Genetic parameters for environmental variance of eggshell color in different periods in purebred laying hens

From: Estimating the purebred–crossbred genetic correlation for uniformity of eggshell color in laying hens

Period

Period

1

2

3

4

1

0.067 (0.014)

0.92 (0.062)

0.68 (0.095)

0.64 (0.139)

2

 

0.092 (0.015)

0.89 (0.051)

0.86 (0.074)

3

  

0.088 (0.015)

0.94 (0.059)

4

   

0.084 (0.019)

  1. There were 33,395, 50,919, 52,682 and 30,655 records in periods 1, 2, 3 and 4, respectively
  2. Periods 1 = early, 2 = mid 1, 3 = mid 2 and 4 = late laying period; genetic variances on diagonal, upper off-diagonals are genetic correlations; standard errors are listed between brackets
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Genetics Selection Evolution

ISSN: 1297-9686