Egg cleaning before putting them in an incubator |
As opposed to natural methods where the hen sits on the eggs, commercial hatcheries customarily rely on artificial incubators. Chicken hatchery business is more than the ordinary raising of chicken. It basically entails the regular production and supply of day old chicks by artificial incubation.
There can be variations in the nature of the hatcheries
such that it may be part of a breeding farm, an arrangement where day old
chicks and parent stocks are produced or where the breeding stock is not
maintained but eggs are purchased to produce day old chicks.
A vibrant parent stork that supplies the eggs for
hatching has to be maintained if eggs are not going to be purchased. Young
chicks that are not going to be sold must be considered as well as adult
chicken that go broody. Other poultry species such as ducks, turkeys, guinea fowl, quails
and pigeons can also be integrated into the hatchery.
Planning
the Hatchery
Licence
You will need a licence to operate a hatchery. This
licence can be obtained from the Veterinary Department. It is issued after the
department is satisfied that the premises meet all phytosanitary requirements
and do not expose humans and the environment to pollution and health hazards.
Although this project does not fall within the control of the National
Environmental Management Authority (NEMA) it will be important to have a good
environmental management plan to ensure that the waste produced from the
hatcheries does not affect the local population.
Scale
of Operation
The turnover rate should be the basic concern because it
determines the finances required to set up and run the business. The size of
the perceived poultry market, whether local, external or a combination is a
good indicator on the size of the hatchery to be set up. For the local market
you need to investigate the following in order to determine the demand and
therefore the appropriate size of the hatchery:
- The local
chicken or poultry population.
- The number of
chicken or poultry farms within the locality.
- Chicken or
poultry varieties.
- Number of chicks
produced per month.
- Required number
of eggs to produce the chicks.
- The number of
batches and number of eggs hatching each batch.
- The size of
incubators and hatching house area.
Site
Selection
You need to look for the following when selecting a site
for the hatchery:
- A ground that is
well drained and preferably a high ground.
- Good
infrastructure such as roads for transportation, electricity and water
system.
- Peaceful and
clean environment with plenty of fresh air. Polluting environments such as
heavy traffic, slaughter houses, poultry keeping farms, mining areas,
chemical plants can affect the embryo. Check that the prevailing winds do
not carry poultry debris from other farms into the hatchery.
- The building
should be located at least 150m away from the nearest poultry house and
should have its own entrance and exit separate from the parent stock
house.
Housing
The design and construction must take into account the
sanitation, control of temperature, humidity and diseases. Use appropriate
building materials to prevent leaks and draughts. The floor should be flat,
smooth and easy to clean and the height from floor to ceiling should be about
3.4 to 3.8m. Because of the necessity for regular washing and disinfection the
inside walls should be covered by hard non-absorbent finish and tiles are
preferred.
In order to minimize the risk of disease transmission
between eggs and chicks, arrange the personnel and egg flow such that there is
minimum or no back tracking by staff. Separate the personnel who work in the
hatchery from those working in the breeder farm.
The building should provide rooms for:
- Holding eggs
prior to setting.
- Grading and
traying of eggs.
- Incubation and
hatching machines.
- Chick sexing.
- Grading and
holding prior to sales.
- Additional rooms for cleaning of equipment, fumigation and washing of staff.
Eggs ready to be put in an incubator |
A Simple
Hatchery Layout
Required equipment:
- Incubators.
- Egg setting
equipment
- Egg transfer
equipment.
- Chick handling
and washing equipment.
- Climate control
equipment.
Heating
Eggs being put in an incubator |
Where the heating system uses electricity it is important
to install a standby generator in cases of power failure. Power failure causes
failure of temperature and humidity system.
Breeding
Place a cock for every 10 hens in a separate building.
Provide laying nests and other equipment necessary for production.
Health
Poultry operations pose high risks of disease
transmissions which at times can become epidemics of high proportions. Health
and sanitary precautions must therefore be strictly adhered to. You must design
and implement an effective and comprehensive health and safety programs that
comply with international standards.
The following sanitary procedures are recommended:
- Ensure that eggs
for hatching are free from diseases if they have to be purchased.
- Fumigate all
purchased eggs immediately.
- Wash and
disinfect all setting and hatching trays, the incubator and hatcher rooms,
and all rooms in the hatchery after every hatch.
- Dispose hatchery
debris by burning in specially constructed facilities or burying deeply.
- Attendants and
visitors must be clean and disinfected before proceeding into the
hatchery.
Records
Other than for your own business, it is a requirement
that the following records are properly kept:
- Name and address
of flock owner of all eggs received.
- Number of eggs
and date received.
- The number of
all hatching eggs and date received.
- The number of
all baby chicks sold and flock origin.
- Date, name and
address of purchaser.
- Flock inspection
and test results.
Hatchery
Operations
Eggs in an incubator with a tray of water below |
Incubation
- Store eggs in
plastic egg trays at room temperature and 75% relative humidity.
- Do not store
eggs for long before setting because they lose moisture through
evaporation and therefore hatchability.
- Line egg cases
with plastic to prevent evaporation if eggs must stay long before setting.
- Attach a record
card to indicate the source of eggs, type and date of setting.
- If the eggs are
dirty they should be cleaned by washing in hot water with disinfectants
such as Dettol. However washing increases the chances of infection and
should be discouraged. Alternatively they should be fumigated prior to
setting using formaldehyde.
- Warm the eggs to
room temperature 6 hours before setting.
- Sort and grade
the eggs before placing them in the incubator. Remove all broken,
oversized, undersized or shapeless eggs.
- Place the eggs
in clean trays and warm them to 37.5°C.
- Warm the
incubator to 36.5 to 37.5°C then carefully arrange the eggs in hatching
trays. Set the eggs at an angle of 45° with the narrow end pointing down.
- Maintain
humidity at 70 to 80%
- Read the
thermometer every 6 to 8 hours and adjust the heat accordingly whenever
the thermometer reading falls below 36.5°C or rises above 37.5°C.
- Turn the eggs
every 6 to 8 hours and continue doing this up to day 18.
- Check the
temperature every time you turn the eggs and adjust the heat accordingly.
- Candle the eggs
on day 7 and 14 to ensure you don’t have infertile or those eggs with dead
embryos.
- Remove and
dispose off all broken, infertile and spoilt eggs.
- On day 19
transfer eggs from the incubator to the hatcher.
- Increase
moisture to soften the eggs and help the chicks emerge.
- Chicks start to
come out on day 20. Do not keep for long chicks that hatch early. Remove
them from the hatcher and process them so that they can be delivered
within 12 hours.
- Most of the
chicks will have hatched on day 21.
- Chicks dry
within 30 to 45 minutes after they come out from their shells. Remove them
immediately from the incubator after they are dry to prevent them from
overheating.
- The day old
chicks are now ready for sale or brooding.
- Remove the egg
shells, dead chicks and spoilt eggs from the hatching trays then clean and
disinfect the incubator for the next batch of eggs.
Handling
Chicks
Packing:
- Assemble the
chick boxes before pulling the chicks from the hatchers.
- Pull out the
trays one at a time.
- Remove and count
the healthy chicks as they are placed into the chick boxes.
- Leave the poor
quality chicks in the trays and dispose them off with empty shells,
unhatched eggs and hatchery debris.
- Allow the chicks
to stand in the chick boxes for 4 to 5 hours to let them harden.
- Keep a record of total saleable chicks and hatches each day.
- Separate the
cockerels and pullets at hatching time.
- Sexing can be
done in three ways i.e. colour, feather or vent sexing.
Vaccination:
Vaccinate against Marek’s Disease and Newcastle Disease
on day one.
Debeaking:
- If the chicks
are meant for broilers debeak them on day one.
- Debeaking can be
done by cold method through a cold knife or scissors by the hot method
through a debeaking machine with a hot blade.
Transportation:
- Transfer chicks
ready for delivery into chick holding rooms.
- Record the
breed, fertility, hatchability, number of saleable chicks, percent hatch
and culls before the chicks leave the hatchery.
- Give customers
adequate information about breed, expected performance and vaccination
record of chicks they purchase in a small written guide.
This
is where we will be ending our discussion for today. Remember to share your comments views and opinions.
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