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Table 4 Descriptive statistics of lactation curve parameters

From: Effects of season and age at first calving on genetic and phenotypic characteristics of lactation curve parameters in Holstein cows

Parameters

Mean

SD

a

16.62

6.60

b

0.27

0.03

c

0.003

0.001

Peak time (day)

76.60

24.86

Peak yield (kg)

33.10

5.19

Part1

2985.09

496.87

Part2

3051.69

579.44

Part3

2681.95

647.14

Milk305

8718.73

1623.05

Persis1

102.27

9.68

Persis2

89.82

15.89