Energy efficiency at 6 peak milk levels for 2
cow sizes
The higher the
peak milk, the
smaller is the
difference in
efficiency
Overall trend is the higher the PKM, the more efficient is the animal because of the dilution of maintenance cost and faster growth of the calf
Emphasize that comparison is made at same PKM, when in reality small-size cows might have lower PKM than larger-size cows
2
124.32
114.52
56.50909
52.05455
4
51.31
50.96
23.32273
23.16364
6
41.01
41.48
18.64091
18.85455
8
34.21
34.63
15.55
15.74091
10
29.58
29.82
13.44545
13.55455
12
27.35
27.6
12.43182
12.54545