Develop important standard features in herd management in easy tables

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Important features of herd management standard

We hope that by being aware of the useful characteristics and knowing the desirable ones in herd management, you can take a firm and fundamental step in increasing herd productivity. As you know, goal setting is an important principle for setting meaningful and challenging goals.

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Table of standards for measuring reproductive performance

Items

Average

Optimal

Pregnancy rate (%)

40-45

Above 50

Number of inseminations per pregnancy

8/1-2/2

Less than

1 / 7

Birth interval (months)

15-5/13

13-12

Production calves(%)

80-70

Above 90

Open days

130

150or less

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Average table of pregnancy days of 5 important breeds of dairy cows

Air Shire

279days

brown swiss

290days

Guernsey

283days

Holestein

279days

Jersey

279days

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Normal proportions of minerals in diets to prevent imbalance

Zinc to copper: 4/1

Iron to copper: 1/40

Potassium to magnesium: 1 / (5/4)

Zinc to manganese: 1/1

Copper to molybdenum: 1/6

Potassium to sodium: 1/3

Nitrogen to sulfur: 1/10

Calcium to phosphorus: (5/1) / 1

     

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Standard guide table for daily dry matter intake in dairy cows (in pounds)

Week after birth

First pregnancy

Second pregnancy and above

1

31

35

2

35

42

3

37

46

4

40

48

5

42

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Guidelines for the number of alternate heifers per herd

Herd size

(Total adult ٬ dry and milk cows)

75

100

250

400

800

0to 2 month old calves

6

8

20

32

64

Heifers

3to5 months

9

12

31

48

96

6to8 months

10

12

31

48

96

9to12 months

13

18

43

72

144

13to 15 months

9

12

30

48

96

16to 24 months

28

38

95

152

304

Total substitutes

75

100

250

400

800

important standard features in herd management

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