Question

Where does fertilization occur in a hen?

Answer 1

Hint: The embryo of the chicken is developed inside the female body. Internal fertilisation is the term for this form of fertilisation. A zygote is formed when the male and female gametes combine inside the female body. Internal fertilisation in chickens refers to the fusing of male and female gametes occurring within the female body.

Complete answer:
Fertilisation takes place in the hen's oviduct. Fertilization occurs immediately following ovulation. The fertilised egg secretes albumen and shell. After ovulation, an egg travels the oviduct passage for roughly 25/26 hours before being deposited.

The female chicken's reproductive system is divided into two parts: the ovary and the oviduct. Unlike other female animals, which have two ovaries, chickens usually only have one. When the female chick hatches, the right ovary stops developing, but the left one continues to mature.

The ovary is a group of sacs attached to the hen's back, roughly halfway between the neck and the tail. When the chicken hatches, it is completely formed and contains thousands of small eggs, each ovum contained within its own follicle. These ova grow into yolks one at a time as the female achieves adulthood.

The stigma line can be seen when the ovum develops and grows larger (a clear line on each ovum). This is the point at which the yolk is discharged.

A tiny, whitish speck called the blastodisc can be seen on the surface of every egg yolk. There is only one female cell in here. When a yolk enters the infundibulum and sperm is present, a single sperm penetrates the blastodisc, fertilising it, and the blastodisc forms a blastoderm.

The blastoderm is the real egg in technical terms. The blastoderm begins to divide into 2, 4, 8, and more cells shortly after fertilisation. The embryonic development process has begun and will continue until the egg is laid. The egg's development then slows until it is incubated. Fertilization is the process of sperm and ova combining. The egg can develop into a chick after fertilisation. Only fertilized eggs grow into chick. The chick grow and become adult birds.

The oviduct is a tube-like organ that runs between the ovaries and the tail along the backbone. It is roughly 25 to 27 inches long in a mature hen. In the ovary, the yolk is fully developed. A yolk's follicle ruptures when it is fully formed, releasing it from the ovary. It next enters the infundibulum, the oviduct's entrance.

As the egg passes through the oviduct, all of the other parts of the egg are joined to the yolk. The yolk is surrounded by the chalazae, albumen, shell membranes, and shell to create the whole egg, which is subsequently placed. It normally takes a little more than 24 hours to finish this cycle. Another yolk is released about 30 minutes after the egg is laid, and the process repeats itself.

Note:-
Farmers may "candle" eggs by holding them in front of a strong light in a dark room, looking for black splotches that signal a fertilised egg. Yes, the very first egg is edible. It was a privilege to be the family member who got to consume it. It's preferable to gather them more than once a day in hot weather, as some chickens will devour them if they're left too long. Our hens appear to choose the same nest.