答案:【计分规则】: (1) Provide high-concentration, easy-to-use metabolizable energy. (2 points)(2) Provide essential fatty acids needed by animals. (1 point)(3) Promote the absorption and utilization of fat-soluble vitamins and carotenoids. (2 points)(4) Improve the palatability and external sensory of feed. Increase animal feed intake. (2 points)(5) In special environments, especially high temperature conditions, it can reduce the stress response of animals. (2 points)(6) It is conducive to processing during feed processing. (1 point)