19
CT SERIES
Incubation Records
Incubation records are very important to identify performance and also problems of incubation.
Name of species, setting date, transfer date, hatching date, number of egg set, number of fertile egg, number of chicks, % hatchability,
can be recorded for future reference. Eggs must be controlled for fertility, early and late dead identification.
%hatchability can change for different species. Hatchability can be calculated by dividing number of chicks to number of fertile eggs.
Sample table
(Quail incubation time 17 day, chicken incubation time 21 day.)
Species
Date of
Number of
Hatchability
%
Notes
Hatching times, Early, middle and late
death, problem in chicks
Set
Transfer
Hatching
Eggs
fertile
eggs
chicks
Quail
1.1.2000
15.1.2000
18.1.2000
25
20
19
95
16-17 day hatch, no death
Hen
5.1.2000
23.1.2000
26.1.2000
5
4
4
100
20-21 day hatch, 1 early death
- Incorrect incubation settings.
- Turning problems.
- Very low or very high incubation room temperature.
- Inadequate room ventilation.
- High egg storage times .
- Electric cut offs.
- Inadequate or wrong sanitary procedures for eggs or machine.
- Very old or very young parents
- Improper or poor parent feeding
- General problems for health of parents
- Illnesses and genetic problems in parents
- Wrong male / female ratio.
Factors Affecting Hatchability
