Africans don't raise cattle. How did they cultivate the land before?

Africans never raise cattle because of the high cost. And cows are not used to living in Africa, because the environment is too hot, so there is no way to cultivate the land? No, because Africans still use the following methods.

The first one they chose was the donkey. Because donkeys are smaller and easier to raise, the cost requirements are not so high. So Africans used donkeys instead of cows to cultivate land at first. Sometimes two or three donkeys are used to plough the land at the same time, because donkeys are relatively small and not so strong.

But the cost is really high after careful calculation, so people in Africa gave up this practice of raising donkeys at that time. Even donkeys are easy to feed, but they also increase the cost invisibly.

Second, they choose to use horses. Big body and strong physical strength. It is much better to choose horses than donkeys when plowing. Horses are a huge species and are more expensive to raise than donkeys. So I finally gave up the practice of farming land in Malay.

Finally, they adopted a species that is not only suitable for the hot environment in Africa, but also relatively large in size, that is, camels to cultivate the land. Camels are more suitable for growing in hot climate. It can be said that it reduces the cost and increases its own interests. Why not?

Sometimes when we go to Africa, we will see camels on the roadside because the locals use them to cultivate land. Africa's local climate is hot and its own environment is limited, so there are fewer people farming. So it is unrealistic for them to farm like cattle.