优质蛋白玉米 ,又称高赖氨酸玉米 ,因其籽粒所含赖氨酸和色氨酸比普通玉米高一倍以上 ,所以其营养价值比普通玉米高得多。研究表明 ,用这种玉米养猪比普通玉米养猪饲料报酬率提高 3 0 %,养鸡产蛋量提高 1 5%以上 ,因此倍受养殖户和饲料加工企业欢迎。这几年种植面积逐年扩大 ,? High-quality protein corn, also known as high-lysine corn, is more nutritious than regular corn because its grain contains more than twice as much lysine and tryptophan as regular corn. Research shows that with this corn raising pigs than ordinary corn feed rate of return of 30%, raising chicken egg production increased by 15% or more, it is much welcomed by farmers and feed processing enterprises. In recent years, acreage has expanded each year?