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Extension > Agriculture > Dairy Extension > Feed and Nutrition > Feeding the dairy herd > Table A-6

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Feeding the dairy herd

Table A-5 Table of Contents Table A-7

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.


Table A-5 Table of Contents Table A-7

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