Average daily milk yields, ml/d
|
659d
|
771c
|
697cd
|
77.34
|
0.039
|
Average daily milk yields, g/d
|
678d
|
793c
|
717cd
|
77.34
|
0.039
|
Average daily 4 % FCM yields, g/d
|
756d
|
943c
|
870cd
|
91.28
|
0.004
|
Total milk yields 12 weeks, kg
|
56.90d
|
66.54c
|
60.18cd
|
6.53
|
0.034
|
Feed conversion ratiob
|
1.58c
|
1.31c
|
1.41d
|
0.07
|
<0.0001
|
Milk composition, %
| | | | | |
Fat
|
4.77c
|
5.26d
|
5.42c
|
0.07
|
<0.0001
|
Protein
|
3.49d
|
3.61c
|
3.65c
|
0.10
|
0.012
|
Lactose
|
6.23d
|
6.28d
|
6.56c
|
0.09
|
<0.0001
|
Specific gravity
|
1.028
|
1.028
|
1.028
|
0.00
|
0.251
|
Solid non fat
|
10.19d
|
10.47c
|
10.45cd
|
0.09
|
0.009
|
Total solids
|
15.24d
|
15.45cd
|
15.87c
|
0.45
|
0.036
|
Milk constituents yields, g/d
| | | | | |
Fat
|
32.29d
|
41.71c
|
38.86c
|
4.02
|
0.001
|
Protein
|
23.63d
|
28.63c
|
26.17cd
|
2.78
|
0.013
|
Lactose
|
42.18d
|
49.77c
|
47.00cd
|
6.46
|
0.039
|
Solid non fat
|
70.93d
|
80.76c
|
74.88c
|
10.63
|
0.009
|
Total solids
|
103.24d
|
122.45c
|
113.71cd
|
11.97
|
0.038
|
Income over feed cost, U$
|
0.93d
|
1.11c
|
0.97cd
|
1.883
|
0.037
|