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close this bookBetter Farming Series 11- Cattle Breeding (FAO - INADES, 1977, 63 p.)
close this folderHow cattle reproduce
View the document(introduction...)
View the documentThe reproductive systems
View the documentPregnancy and birth
View the documentAge of breeding animals
View the documentCastrating bulls
View the documentChoosing breeding animals
View the documentHow to know your herd

The reproductive systems

· The reproductive system of the cow

The reproductive organs of the cow are all inside the animal.

You can see only the entry to the system which is called the vulva.

Genital organs of the cow; genital organs removed from the cow

Flowers have ovaries which contain ovules (see Booklet No. 3, pages 7 and 11).

When the ovules are fertilized by pollen, the ovules become seeds.

The cow has two ovaries. Every three weeks the ovaries produce an ovum. {In animals, the female reproductive cell is called ovum, plural ova).

If the cow is served by the bull at this time, the ovum is fertilized. It develops and becomes a calf.

· The reproductive system of the bull

This system consists of:

· two testicles which hang between the hind legs;
· the penis;
· two ducts which connect the testicles with the penis.

Reproductive organs of the bull

Stamens give the pollen that fertilizes the ovule in a flower (see Booklet No. 3, page 10).

Testicles give the semen that fertilizes the ovum.

The fertilized ovum becomes a calf.