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本文就美国饲料生产的基本特点作了简要介绍。美国草地畜牧业生产在近40～50生发年间了根本变化,从饲草到家畜已经转向高度集约化经营的高产品种,饲料构成因此而得以大大简化。苜蓿干草是高产奶牛的主要粗饲料,玉米是青饲料和青贮的基本原料,大豆饼构成了美国畜禽蛋白质饲料的主要来源。天然草地主要用于放牧。重建、补播和实行集约化利用,使原有草地生产能力得以大幅度提高。
This article gives a brief introduction of the basic characteristics of feed production in the United States. The United States grassland animal husbandry production in the nearly 40 to 50 years of hair growth years fundamental change, from forage to livestock has turned to highly intensive high-yielding species, feed composition thus greatly simplified. Alfalfa hay is the main roughage for high-producing dairy cows, while maize is the basic source of green forage and silage. Soy cakes constitute a major source of protein feed for the United States. Natural grass is mainly used for grazing. Reconstruction, replenishment and intensive use of the original grassland production capacity can be greatly improved.