Within the original article table 2 contained incorrect data. The correct representation of table 2 is shown here.
Table 2 Distribution of the requirement and the supply of digestible protein (g/day) for one example cowFootnote 1
1 Average cow of Study 1 producing 38.3 kg of milk at 3.09% true protein, 3.27% fat, eating 23 kg/day of dry matter of the 16.5% CP diet (Olmos Colmenero and Broderick, 2006), at 120 days in milk, not changing BW (589 kg) and not gestating.
2 CNCPS=Cornell Net Carbohydrate and Protein System, v 6.5 (van Amburgh et al., 2015); DVE=Dutch protein evaluation system, DVE-1991 (Tamminga et al., 1994) and DVE-2007 (VanDuinkerken et al., 2011); INRA (2018); NRC (2001); NorFor (2011).
3 In DVE, the metabolic faecal is not included in the requirement and is excluded from the supply, as it is considered to be a consequence of the diet and not the animal. For comparison purpose with the other feeding systems, this fraction has been added to the requirements and not removed from the supply in the current table.
4 Duodenal endogenous flow.
The authors apologise for the error.
