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玉米是我国主要粮食作物,抓好玉米生产,对人民生活及发展畜牧业生产具有重要意义.但是,许多玉米品种营养价值低,蛋白质含量仅10%左右,赖氨酸含量也仅0.2%左右。同时,目前推广的杂交种茎秆产量较低,籽实成熟时茎秆多数已枯黄,不适于作青贮饲料。显然,无论用于食用还是作为发展畜牧业的饲料,现有的玉米杂交种都是不能满足需要的.这就要求我们培育出营养价值高,同时茎秆适于青贮的新杂交玉米种。一、高赖氨酸玉米和秸秆青贮饲料的营养价值
Maize is one of the main food crops in our country, and it is of great importance to people’s livelihood and development of animal husbandry.However, many maize varieties have low nutritive value with only 10% protein content and only 0.2% lysine content. At the same time, the current production of hybrid varieties of straw yield is low, most of the stalks mature when the seed has been yellow, not suitable for silage. Obviously, the existing maize hybrids can not be used for food or as a feed for the development of animal husbandry, which requires us to cultivate new hybrid corn which has high nutritional value and suitable for silage. First, the nutritional value of high lysine corn and straw silage