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Table 1 Descriptive statistics of the phenotypic values for milk production traits

From: Identification of single nucleotide polymorphisms of PIK3R1 and DUSP1 genes and their genetic associations with milk production traits in dairy cows

  Lactation Milk yield, kg Fat yield, kg Fat percentage, % Protein yield, kg Protein percentage, %
Mean 1 10,379.81 350.55 3.387 313.78 3.024
2 10,859.85 390.12 3.599 322.20 2.970
Standard deviation 1 1476.18 60.70 0.423 48.20 0.198
2 1876.61 83.85 0.504 57.63 0.192
Maximum 1 14,505.68 537.97 4.742 457.53 3.508
2 16,512.08 658.25 5.431 467.03 3.538
Minimum 1 6057.96 184.80 2.059 157.73 2.257
2 4756.94 145.05 2.212 137.86 2.199
Coefficient of variation 1 14.22 17.31 12.490 15.36 6.548
2 17.28 21.49 14.004 17.89 6.465