Artificial egg hatching

Artificial Hatching of Eggs In Poultry

Hatching of Eggs

Artificial Hatching of Eggs by incubator needs to Optimum Conditions for increasing hatchability rate for of Different Poultry species. besides, optimum conditions some problems have happened during the hatching of eggs. It also needs to a solution for the proper hatching of eggs

Hatching of Chicken Eggs

EggsWeight: 50-55g
Storage: 1-3 days (20-25°C / 6S-77°F), 4-7 days (15-17°C / 59-
62.6°F), 7-10 days (14-16°C / 57.2-60.S0F), >10 days (10-12°C / 50-53. 6°F); RH 75-S0%; Positioning – air cell upwards.
Setter Conditions
Temperature37.5-37.7°C (99.5-99.S0F) Prevent fluctuation of temperature
Humidity28.3-30°C (S3-S6°F) wet-bulb thermometer; maximum weight loss during incubation 12.6% from the initial weight of an egg.
VentilationMaximum C02 level 0.5%, fresh air supply 60-180 m3 per 1000 eggs per hour.
Turning 45° vice versa. Common practice is once every hour.
Candling.On day 7 and/or at transfer.
Transfer At day 18
Hatcher Conditions
Temperature37.2-36.9°C (99-98’soP)
Humidity30-33.3°C (86-92°P) wet-bulb thermometer; humidity is to be increased gradually when piping starts.
Turning Not required.
Hatching 21 days + hours to dry.
Chick TreatmentTo keep the susceptible chicks free from drying out, cooling down, and draught.

Normal fertilized chicken egg

determine egg fertility

Hatching of Duck Eggs

EggsWeight: 65-70g
Storage: 1-3 days (20-25°C / 68-77°P), 4-7 days (15-17°C / 59-62.6°P), 7-10 days (14-16°C / 57.2-60.8°P), >10 days (10-12°C /50-53.6°P); RH 75-80%; Positioning – air cell upwards.
Setter Conditions
Temperature37.2-37SC (99.0-99SP) Prevent fluctuation of temperature
Humidity30.3-31°C (86-88°P) wet-bulb thermometer; maximum weight loss during incubation 12.6% from initial weight of egg.
ventilationMaximum CO2 level 0.5%, fresh air supply 60-180 m3 per 1000 eggs per hour.
Turning 45° vice versa. Common practice is once every hour.
CandlingOn day 7 and/or at transfer.
Transfer On day 25.
Hatcher Conditions
Temperature37.0-37.2°C (98.6-99.0°F)
Humidity31-35°C (88-95°F) wet-bulb thermometer; humidity is to be increased gradually when piping starts.
Turning Not required.
Hatching28 days + hours to dry.
Duckling TreatmentKeep the susceptible ducklings free from drying out, cooling down, and draught. Keep them at 30°C during the first day of their life after taking out from the hatcher, and anti-stress medicines (glucose and electrolyte powder) may be provided
in the drinking water.

candling an egg

Hatching of Quail Eggs

EggsWeight: 109
Storage: 1-10 days at 13-15°C; RH 75%; Positioning – air cell upwards.
Setter Conditions
Temperature 37.5-37.8 °C (99.5-100°F) Prevent fluctuation of temperature
Humidity30.3-31°C (86-88°F) wet-bulb thermometer; maximum weight loss during incubation 21.5% from the initial weight of an egg.
VentilationMaximum C02 level 0.5%, fresh air supply 60-180 m3 per 10000 eggs per hour.
Turning45° Vice versa. Common practice is once every hour, but once every 3 hours is enough.
Candling On day 7 and/or at transfer. (But not done in practice).
TransferOn day 14.
Hatcher Conditions
Temperature 37.0-37.4°C (98.6-99.3°F)
Humidity 30-33.3°C J86-92°F) wet-bulb thermometer.
Turning Not required.
Hatching 17-18 days.
Chick TreatmentKeep the susceptible ducklings free from drying out, cooling down, and draught. Keep them at 34-40°C during the first 3 days of their life after taking out from the hatcher, and decrease it then slowly to 24°C at the end of the second week. Anti-stress medicines (glucose and electrolyte powder) may be provided in the drinking water.

day 5 of incubation

Loading Schedule and Requirement of Breeding Stock

In the case of a large electric incubator, one-third of the total capacity is usually loaded every 7 or 8 days. The number of breeding birds required is calculated as one-eighth of the incubator capacity. For example, a 1000 egg incubator would need about 125 breeding

Testing of incubated eggs

Incubated eggs are tested by means of candling at two different times during incubation, viz., on 5th_7th day of incubation (to discard the infertile egg, if any) and again on the 18th day of incubation (to discard the dead-in-shell, if any and to maintain the business liaison in case of commercial hatchery).

On 5th_7th day of incubation

spider-like red radiating lines can be seen in fertile eggs and movement of developing embryos is quite visible. At this stage infertile eggs will be clear like fresh eggs but they have bigger air cell.

On 18th day of incubation

about two third of the egg will show dark in appearance and a pulsating movement will be observable at the edge of the air cell in case of fertile eggs. Infertile eggs with dead embryos at this stage will be less developed.

Incubation-related Problems and their Remedial Measures

ProblemProbable causesRemedial Measures
Embryonic Death (blood ring seen on candling)temperature to low or highTo check temperature and
humidity control devices
Many dead in shell*poor ventilation
*Faulty turning of eggs
*Infection, e.g., BWD, etc.
*!!! -health of breeding stock including poor nutrition
* To check fresh air in the incubator and hatchery room
*To maintain turning schedule of eggs properly and seriously.
* To maintain the hatchery
hygiene.
* To maintain the disease free
and well nourished breeding stock.
failing to hatch (pipped eggs)Low level or lack of moisture in the incubatorTo maintain the humidity requirements inside the machine.
malformed of chicks /ducklings* Faulty setting of eggs
* Faulty turning of eggs
* Temperature is too high or low.
* To set eggs properly with broad end up position
* To turn eggs properly as per schedule
* To turn eggs properly as per schedule
* To check thermometer.

Reference

Manual on Avian Production And Management