[Significance of animal feed within the animal hygiene in the warm countries]

Based on the role of nutrition within the relations between the animals and their surroundings the importance is outlined of animal nutrition as part of animal health in tropical and subtropical countries. The author describes damages caused by feeding, foodstuff and wrong nutrition in extensive and intensive production of various types of animal farming (located and nomad) and breeds (indigenous and specialized). If natural pastures are used, extensive animal farming is especially prone to seasonal wrong nutrition. This is exemplified from the sheep production (utilization of the desert steppe under the conditions of the subtropical winter rain climate) and from the cattle production (utilization of the savannah under the conditions of the alternate humid tropical zone). The nutrition damages encountered under intensive locs in moderate zones. The author includes examples of damages caused by foodstuff. Finally the relations are discussed between nutrition and resistance to infections.