关键词: 食物选择, 反刍动物, 影响因素

Abstract: Food selection is one of the main research contents in nutritional ecology of ruminants. This review expounds the conceptsand several studying methodologies on food selection , and summarizes its major influencing factors such as features of animal morphology , nutritional quality of plants , physicochemical defense of plants , physiological features of animals , and characteristics of behaviors. The correlation and functional mechanisms of these factors comprise the basic research contents of this studying field.

Key words: Food selection, Ruminant, Influencing factors