TABLE A-6. DAILY NUTRIENT RECOMMENDATIONS FOR LACTATING DAIRY COWS
|
Body weight
(lb) |
Crude protein
(lb) |
NEL
(Mcal) |
TDN
(lb) |
Ca
(g) |
P
(g) |
Vitamin A
(1000 IU) |
Vitamin D
(1000 IU) |
|
| Maintenance of mature lactating cow* |
| 700 |
0.62 |
6.0 |
5.8 |
13 |
10 |
24 |
10 |
| 800 |
0.67 |
6.7 |
6.4 |
15 |
11 |
28 |
11 |
| 900 |
0.71 |
7.3 |
7.0 |
17 |
12 |
31 |
12 |
| 1000 |
0.76 |
7.9 |
7.6 |
19 |
14 |
34 |
14 |
| 1100 |
0.80 |
8.5 |
8.2 |
21 |
15 |
38 |
15 |
| 1200 |
0.85 |
9.0 |
8.7 |
23 |
16 |
41 |
16 |
| 1300 |
0.89 |
9.6 |
9.2 |
25 |
17 |
45 |
18 |
| 1400 |
0.93 |
10.1 |
9.8 |
26 |
20 |
48 |
19 |
| 1500 |
0.97 |
10.7 |
10.3 |
28 |
21 |
52 |
20 |
| 1600 |
1.01 |
11.2 |
10.8 |
30 |
23 |
55 |
22 |
| 1700 |
1.05 |
11.7 |
11.3 |
34 |
24 |
59 |
23 |
| Add for gestation of mature dry cows |
| 700 |
1.04 |
1.8 |
1.8 |
9 |
4 |
— |
— |
| 800 |
1.17 |
2.0 |
1.9 |
10 |
5 |
— |
— |
| 900 |
1.29 |
2.2 |
2.1 |
11 |
5 |
— |
— |
| 1000 |
1.45 |
2.4 |
2.4 |
12 |
5 |
— |
— |
| 1100 |
1.52 |
2.5 |
2.6 |
13 |
6 |
— |
— |
| 1200 |
1.63 |
2.7 |
2.7 |
14 |
7 |
— |
— |
| 1300 |
1.73 |
2.9 |
2.9 |
15 |
7 |
— |
— |
| 1400 |
1.84 |
3.0 |
3.1 |
16 |
8 |
— |
— |
| 1500 |
1.95 |
3.2 |
3.2 |
17 |
9 |
— |
— |
| 1600 |
2.06 |
3.4 |
3.4 |
19 |
9 |
— |
— |
| 1700 |
2.16 |
3.5 |
3.6 |
20 |
9 |
— |
— |
| Milk production—nutrients per pound of milk of different fat percentages |
% fat
|
|
| 3.0 |
0.078 |
0.29 |
0.28 |
1.2 |
0.8 |
— |
— |
| 3.5 |
0.084 |
0.31 |
0.30 |
1.4 |
0.8 |
— |
— |
| 4.0 |
0.090 |
0.33 |
0.32 |
1.5 |
0.9 |
— |
— |
| 4.5 |
0.096 |
0.36 |
0.34 |
1.6 |
1.0 |
— |
— |
| 5.0 |
0.101 |
0.38 |
0.36 |
1.7 |
1.0 |
— |
— |
| 5.5 |
0.107 |
0.40 |
0.39 |
1.8 |
1.1 |
— |
— |
| Body weight change during lactation—nutrients per pound weight change |
| Weight loss |
-0.32 |
-2.23 |
-2.17 |
— |
— |
— |
— |
| Weight gain |
0.32 |
2.32 |
2.26 |
— |
— |
— |
— |
*To allow for growth, add 20% to the maintenance allowances, except vitamins A and D during the first lactation and 10% during the second lactation. |
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Minnesota Extension.
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