1.
The process of forming the egg
inside the reproductive system of the
chicken is a complex biological
process, and all body systems
participate in the formation of the
egg, and It is affected by many
factors such as genetics, nutrition,
age as well as the environmental
factor.

2.
The female reproductive system consists
of:
1. Ovary
2. Oviduct: The oviduct is divided into:
1. Infundibulum
2. The magnum
3. Isthmus
3. The uterus
4. Vagina

3.
Follicles of different sizes develop with the
onset of sexual maturity, resulting in a
hierarchy of follicles. Usually, only one
follicle develops before ovulation, but
sometimes two eggs are released at the
same time, resulting in eggs with two yolks.

4.
• When the length of the day increases gradually,
a high percentage of young chicken eggs will
have double yolks. The chicken's body releases
two eggs very quickly instead of one and then a
shell forms around them. Since their
reproductive systems have not fully matured,
they periodically release two yolks instead of
one.

5.
Egg yolk are a natural source of vitamin D,
as well as saturated and unsaturated
fatty acids. Egg production with two yolks
occurs when ovulation (is the process in
which ovary releases a mature egg) takes
place very quickly, and some hybrid
breeds mainly produce eggs with two
yolks.

6.
What kind of chicken lays a
double egg yolk?

7.
There are breeds can lay a double-yolk
egg, such as Rhode Island Red, Sussex
and Leghorns and they may be more
common than other breeds. Double
egg yolk is a favorite over easy eggs.

8.
Is it safe to eat eggs that contain two
yolks?..

9.
Double yolk eggs are safe to eat and
are usually longer and larger than
eggs with a single yolk. When
thinking about the nutritional value
of a double egg, remember that egg
yolk is a very nutritious ingredient,
containing 13 essential vitamins and
minerals, as well as 40% of high-
quality protein.

10.
Questions?
1- The female reproductive system consists -------.
Answer: Ovary
2-The process of forming the egg inside the-----------------.
Answer: reproductive system
3- Egg production with two yolks occurs when ------------.
(ovulation, magnum, egg)
4-Double yolk eggs are safe to eat and are usually longer and
larger than eggs with a single yolk
Answer: True
5-Double egg yolk is a --------over easy eggs.
(favorite, Egg production , Vagina)