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Table 1 Summary of different studies supplemented RPC and their effect on milk production, fat and protein % of dairy cows

From: Considering choline as methionine precursor, lipoproteins transporter, hepatic promoter and antioxidant agent in dairy cows

References Lactation stage pre-and postpartum days RPC (g/day) supplement Milk yield (kg/day) Fat yield % Protein yield %
Pre Post
Veth et al. (2016) 14 0 31.30 4.04 3.46
12.5 32.00 4.03 3.47
25 31.39 4.04 3.42
Sun et al. (2016) 21 21 0 3.28 3.05
15 3.44 3.19
Leiva et al. (2015) 21 45 0 30.6 3.29 3.17
50+ 29.1 3.51 3.32
100++
Ardalan et al. (2011) 28 70 0 31.70 3.30 3.13
60 34.60 3.35 3.11
Davidson et al. (2008) 21 90 0 27.90 2.97 2.60
40 27.50 2.93 2.68
Piepenbrink and Overton (2003)    0 40.00 4.02 2.97
21 63 45 43.30 4.21 3.02
60 39.90 4.00 3.01
   75 41.00 4.29 3.00
Pinotti et al. (2003) 14 30 0 28.50 3.24 3.11
20 31.40 3.36 3.05
  1. –, not reported; +, supplemented before calving; ++, supplemented after calving