Khanya Eggs Business Plan — Flock Performance

Lay rate, mortality, culling and the flock cycle assumptions that drive every revenue line in the model.

Flock Performance

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  • 7.1 What drives the curve
  • 7.2 Mortality and the flock cycle

Everything in this plan derives from four production numbers: how many birds are in lay, how many eggs each lays, how many of those are saleable, and how many birds are lost along the way.

Hen-day production against the stage gates
Figure 8. Hen-day production against the stage gates.

Year 1

Year 2

Year 3

Year 4

Year 5

Birds at year end

500

2 000

6 000

15 000

30 000

Average hens in lay

330

1 300

3 900

9 800

21 000

Eggs sold, thousands

87

358

1 106

2 845

6 184

Eggs per hen per year

264

275

284

290

295

Hen-day production

72.2%

75.5%

77.7%

79.5%

80.7%

Stage gate requirement

74%

78%

80%

80%

80%

Trays sold

2 900

11 933

36 867

94 833

206 133

Hen-day production rises from 72.2 per cent in Stage 1 to 80.7 per cent by Stage 5, a path that is realistic for an operator learning the business and still below the 85 per cent-plus achieved by leading commercial layer units. The gate conditions are set slightly ahead of the modelled outcome at each stage, which is deliberate: an operator who cannot beat the model does not get the next tranche.

7.1 What drives the curve

  • Pullet quality on arrival. A point-of-lay pullet that arrives underweight or unevenly reared never reaches peak production. Section 9 treats supplier selection as the primary lever on this line.
  • Feeding consistency. A layer that runs short of feed or water for a day drops out of lay and takes a week to return. Automated drinkers and feed lines arrive at Stage 4 for exactly this reason.
  • Lighting programme. Photoperiod controls the onset and persistence of lay. A disciplined lighting programme is the cheapest single intervention available and is in place from Stage 1.
  • Temperature and ventilation. Heat stress reduces both lay rate and shell quality. House design and stocking density matter more than any input bought afterwards.
  • Culling discipline. Non-layers eat as much as layers. Regular assessment and removal of non-productive birds raises hen-day production and reduces feed cost simultaneously.

7.2 Mortality and the flock cycle

Year 1

Year 2

Year 3

Year 4

Year 5

Mortality assumption

10%

8%

7.5%

7%

6%

Stage gate requirement

Below 10%

Below 8%

Below 7.5%

Spent hen revenue (R’000)

10

44

141

373

792

Pullet cost (R’000)

68

238

670

1 542

2 901

Pullet cost per bird placed, R

136

142

148

155

162

A laying cycle runs roughly seventy-two weeks from point of lay, after which the flock is sold as spent hens and replaced. Spent hen revenue rises from R10 000 to R792 000 across the plan and is a real, if modest, offset to the pullet cost. Mortality falling from 10 per cent to 6 per cent is worth approximately R480 000 of Year 5 gross margin, each percentage point is around R120 000.

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