Table 2 Effect of GYS on milk yields at day 28 postpartum in dairy cows.

From: Efficacy of an herbal formula Guixiong Yimu San in preventing retained placenta and improving reproductive performance in cows

Milk yields (kg/d)

GYS group (n = 591)

Control group (n = 598)

P-value

Day 7

32.23 ± 10.46

29.29 ± 9.79

< 0.001

Day 14

36.96 ± 11.43

33.73 ± 10.37

< 0.001

Day 21

38.71 ± 12.01

38.08 ± 11.31

0.351

Day 28

41.18 ± 12.61

39.17 ± 11.91

0.005

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