Strain specific nutrient requirements

There are often questions about the need for strain-specific diets in growing white or brown egg pullets. Such differences would most likely be induced by differential growth rate and/or different mature body weight. As shown in Table 3.12 there are differences in growth rate of commercial pullets throughout the 18 week grow-out period. At 4 weeks of age, there is a 14% difference in body weight between the lightest and heaviest strain, while at 18 weeks this difference is 10%. This differential growth rate is reflected in nutrient needs, where for exam ple, amino acid levels in the starter diet are 10-15% higher for this smaller strain.

Starter diets are shown in Table 3.7 where there is a fairly consistent energy base for all strains, although the diet for the smallest body weight strain, namely Lohmann, is much higher in lysine and threonine. This same trend continues for the grower diets (Table 3.8). Interestingly, for the developer diets (Table 3.9), the highest amino acid needs are for the heaviest pullet

Table 3.7 Starter diets for white egg pullets

Shaver

Hyline 36

Hyline 98

Lohmann

Bovan

Age fed (wks)

(0 to 6*)

(0 to 6)

(0 to 6)

(0 to 3)

(0 to 6)

Protein (%)

19.5

20

20

21

20

ME (kcal/kg)

2900

2960

2960

2900

2980

Calcium (%)

1.0

1.0

1.0

1.05

1.0

Av. Phosphorus (%)

0.47

0.50

0.5

0.48

0.5

Sodium (%)

0.16

0.19

0.19

0.16

0.18

Linoleic acid (%)

1.2

1.0

1.0

1.4

1.3

Methionine (%)

0.42

0.48

0.48

0.48

0.45

Methionine+cystine (%)

0.73

0.8

0.8

0.83

0.8

Lysine (%)

0.95

1.1

1.1

1.2

1.1

Tryptophan (%)

0.20

0.20

0.20

0.23

0.21

Threonine (%)

0.68

0.75

0.75

0.8

0.75

" Extrapolated from Management Guide Information

" Extrapolated from Management Guide Information

Table 3.8 Grower diets for white egg pullets

Shaver

Hyline 36

Hyline 98

Lohmann

Bovan

Age fed (weeks)

(6 to 12*)

(6 to 8)

(6 to 8)

(3 to 8)

(6 to 10)

Protein (%)

17.5

18

18

19

18

ME (kcal/kg)

2800

3025

2960

2800

2970

Calcium (%)

0.95

1.0

1.0

1.03

1.0

Av Phosphorus (%)

0.47

0.47

0.48

0.46

0.48

Sodium (%)

0.16

0.18

0.18

0.16

0.17

Linoleic acid (%)

1.0

1.0

1.0

1.44

1.3

Methionine (%)

0.38

0.44

0.44

0.39

0.4

Methionine+cystine (%)

0.66

0.73

0.73

0.69

0.72

Lysine (%)

0.86

0.9

0.9

1.03

1.0

Tryptophan (%)

0.18

0.18

0.18

0.22

0.19

Threonine (%)

0.62

0.7

0.7

0.72

0.7

  • Extrapolated from Management Guide Information
  • Extrapolated from Management Guide Information
Table 3.9 Developer diets for white egg pullets

Shaver

Hyline 36

Hyline 98

Lohmann

Bovan

Age fed (weeks)

(12 to 17)

(8 to 15)

(8 to 16)

(8 to 16)

(10 to 15)

Protein (%)

16.5

16.0

16.0

14.9

16.0

ME (kcal/kg)

2750

3075

2940

2800

2960

Calcium (%)

1.15

1.0

1.0

0.92

1.0

Av Phosphorus (%)

0.45

0.45

0.46

0.38

0.45

Sodium (%)

0.16

0.17

0.17

0.16

0.17

Linoleic acid (%)

1.0

1.0

1.0

1.03

1.3

Methionine (%)

0.36

0.39

0.39

0.34

0.36

Methionine+cystine (%)

0.63

0.65

0.65

0.58

0.65

Lysine (%)

0.81

0.75

0.75

0.67

0.88

Tryptophan (%)

0.16

0.16

0.16

0.16

0.17

Threonine (%)

0.58

0.60

0.60

0.51

0.60

Pregnancy Diet Plan

Pregnancy Diet Plan

The first trimester is very important for the mother and the baby. For most women it is common to find out about their pregnancy after they have missed their menstrual cycle. Since, not all women note their menstrual cycle and dates of intercourse, it may cause slight confusion about the exact date of conception. That is why most women find out that they are pregnant only after one month of pregnancy.

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