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饲料占养殖畜禽成本的60％-70％。降低饲料成本,是提高畜禽养殖经济效益的重要措施之一。借鉴发达国家发展畜牧业的经验,结合我国人多地少的国情,发展畜牧业单靠粮食转化是行不通的。而种植牧草,以草养畜才是长远之计。例如,按我国目前的生产水平,种植667 M2 (一亩)玉米,可产籽粒500KG,干秸秆500KG,其粗蛋白含量为8．8％和4．7％,折合粗蛋白67KG,
Feed accounts for 60% -70% of the cost of farmed livestock and poultry. Reduce feed costs, is one of the important measures to improve the economic efficiency of livestock and poultry breeding. Drawing on the experience of the developed countries in animal husbandry development, combined with the situation of more people and less land in our country, it is not feasible to develop animal husbandry based on food conversion alone. It is a long-term plan to grow forage grass and raise livestock. For example, according to the present level of production in our country, planting 667 M2 of corn can produce 500KG of grain and 500KG of dry straw with the crude protein content of 8.8% and 4.7%, which is equivalent to 67KG crude protein,