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close this bookBetter Farming Series 11- Cattle Breeding (FAO - INADES, 1977, 63 p.)
View the document(introduction...)
View the documentPreface
View the documentCattle breeding means wealth
View the documentA few words to understand the course
close this folderFeeding cattle
View the document(introduction...)
View the documentHow cattle feed
close this folderHow to feed cattle
View the document(introduction...)
View the documentImproving pasture
View the documentStoring grass
View the documentMineral supplements
View the documentDaily requirements of cattle in feed units and protein
View the documentWatering cattle
View the documentHow to feed calves
close this folderLooking after cattle
View the documentAnimals must be watched
View the documentHow to watch over animals
View the documentHousing animals
close this folderThe health of the herd
View the document(introduction...)
View the documentDiseases
View the documentCattle must be vaccinated
View the documentHow to take care of wounds
View the documentWhat to do about parasites
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
close this folderWhat cattle produce
View the documentMeat production
View the documentMilk production
close this folderOrganizing sales
View the document(introduction...)
View the documentFarmers' groups

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.