Running a small poultry hatchery using an incubator is one of the most practical agribusiness ventures for beginners in Kenya. With proper management, a small 204-egg incubator can hatch chicks every 21 days and supply poultry farmers with healthy day-old or brooded chicks.

This Standard Operating Procedure (SOP) explains the daily, weekly, and incubation cycle activities required to run a small hatchery successfully.

1. Hatchery Setup and Preparation

Before starting operations, ensure the hatchery environment is clean, well ventilated, and protected from pests.

Basic hatchery requirements

• Egg incubator (204 egg capacity or similar)
• Backup power source (UPS or solar if possible)
• Egg trays
• Egg candler
• Thermometer and hygrometer
• Chick brooder
• Chick feeders and drinkers
• Disinfectants
• Clean water supply

Hatchery room conditions

• Temperature: 20–25°C
• Clean and dry environment
• No direct sunlight on the incubator
• Good airflow but no strong drafts

2. Sourcing and Handling Fertile Eggs

The quality of eggs determines the hatch rate and chick health.

Egg sourcing options

1. Own breeder flock
2. Buy fertilized eggs from farmers

Typical price in Kenya:

KSh 18–25 per egg

Egg selection criteria

Good hatching eggs should be:

• Clean
• Medium sized
• Normal shape
• Not cracked
• Less than 7 days old

Avoid:

• Dirty eggs
• Very large or very small eggs
• Eggs stored longer than 10 days

Egg storage before incubation

Store eggs:

• Pointed end down
• Temperature: 15–18°C
• Maximum storage period: 7 days

3. Incubator Preparation

Before placing eggs in the incubator:

Step 1: Clean the incubator

Use disinfectant to sanitize:

• Egg trays
• Interior surfaces
• Water trays

Allow it to dry completely.

Step 2: Run the incubator empty

Operate the incubator for 6–12 hours before loading eggs.

Check that:

• Temperature stabilizes at 37.5°C
• Humidity stabilizes at 50–55%
• Egg turning system is working properly

4. Egg Setting Procedure (Day 0)

Steps

1. Place eggs pointed end down
2. Load eggs evenly on trays
3. Close incubator properly
4. Record the incubation start date

Maintain:

• Temperature: 37.5°C
• Humidity: 50–55%

Most modern incubators turn eggs automatically every 2 hours.

Egg turning prevents embryos from sticking to the shell.

5. Daily Monitoring Routine

The incubator should be checked at least three times per day.

Morning check

• Confirm temperature is stable
• Confirm humidity levels
• Ensure egg turning system is functioning
• Check water trays

Afternoon check

• Refill water trays if necessary
• Inspect for abnormal smell or cracked eggs

Evening check

• Confirm temperature stability
• Ensure incubator remains closed and secure

Record readings in a hatchery logbook.

6. Egg Candling Procedure

Candling allows you to check embryo development.

First candling — Day 7

Remove eggs briefly and candle using a flashlight.

Fertile eggs will show:

• Red veins
• Dark embryo spot

Remove eggs that are:

• Clear (infertile)
• Rotten
• Leaking

Second candling — Day 14

Remove eggs that show:

• Dead embryos
• Abnormal development

This improves hatch success.

7. Lockdown Stage (Day 18)

At day 18, eggs enter the hatching stage.

Steps

• Stop egg turning
• Increase humidity to 65–70%
• Avoid opening the incubator

Eggs are now ready for hatching.

8. Hatching Stage (Day 20–21)

Chicks begin breaking shells around day 20 or 21.

Important rules

Do NOT:

• Open the incubator frequently
• Help chicks break shells unless absolutely necessary

Chicks should remain inside until:

• Completely dry
• Fluffy

This usually takes 6–12 hours after hatching.

9. Moving Chicks to the Brooder

Once dry, chicks are transferred to the brooder.

Brooder conditions

Temperature guide:

Brooder setup

• Clean bedding (sawdust or wood shavings)
• Chick feeders
• Chick drinkers
• Heat source (bulb or gas brooder)

10. Feeding and Care

First feed

Provide:

• Clean water immediately
• Chick starter feed after a few hours

Typical feed type:

Chick starter mash

Vaccination

Recommended vaccines:

• Newcastle disease
• Gumboro

Follow veterinary advice.

11. Sorting and Sales

Chicks can be sold at different ages.

Typical Kenyan market prices:

Keep chicks healthy and active to maintain good customer reputation.

12. Cleaning and Biosecurity

Biosecurity is critical for a hatchery.

After every hatch

Clean:

• Incubator trays
• Hatchery room
• Brooder area

Disinfect all equipment before the next batch.

Basic biosecurity rules

• Limit visitors
• Use footbaths
• Wash hands before handling chicks
• Remove dead chicks immediately

13. Record Keeping

Maintain records for:

• Number of eggs set
• Number of eggs fertile
• Number of chicks hatched
• Mortality rates
• Sales

These records help improve hatch rates and profits.

14. Ideal Hatchery Cycle Schedule

Typical hatch cycle:

This cycle repeats every three weeks.

15. Key Success Tips for Small Hatcheries

Successful hatcheries focus on:

Consistent temperature control

Even small fluctuations reduce hatch rates.

Quality eggs

Poor eggs mean poor chicks.

Clean environment

Disease spreads easily in hatcheries.

Reliable customers

Build a network of poultry farmers.

Final Thoughts

A small poultry hatchery using a 204-egg incubator can produce over 300 chicks per month when operated efficiently. With good egg sourcing, proper incubation management, and reliable customers, the hatchery can become a steady income stream for rural and urban entrepreneurs in Kenya.