The equatorial rain forest belt is not usually used for cattle production because of the
Answer Details
The correct option is "incidence of tse-tse flies". The equatorial rainforest belt is located in areas with a high prevalence of tse-tse flies, which are known to transmit diseases like trypanosomiasis (also known as sleeping sickness) to cattle. This makes it unsuitable for cattle production, as it poses a health risk to the animals. Additionally, the dense vegetative growth in the equatorial rainforest makes it difficult for cattle to graze, which further contributes to the unsuitability of this region for cattle production.