Parameter K1 group K2 group C group
Milk yield (kg/d) 28.99±7.37 30.82±8.19 34.07±6.70

Postpartum day (d)

16.15±4.50 15.20±5.01 16.30±2.95
Body condition score 3.07±0.38ab 3.17±0.28a 2.80±0.33b
Glc (mmol/L) 2.03±0.33A 3.31±0.57 3.02±0.30
BHBA (mmol/L) 3.35±1.48A 1.85±0.67B 0.76±0.34C
NEFA (mmol/L) 1.42±0.65A 0.98±0.32B 0.35±0.12C
Ins (mIU/L) 6.60±1.25 6.90±1.08 7.07±1.07
AST (U/L) 28.53±19.41  52.24±51.42 49.15±31.89
TG (mmol/L) 0.09±0.02 0.09±0.01  0.09±0.02
Different uppercase and lowercase letters within a row represent significant differences at P < 0.01 and P < 0.05, respectively.
Table 1: Clinical data and biochemical parameters in three groups of dairy cows.