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玉米是动物饲料的主要组成成分。然而,大多数传统玉米品种的蛋白质浓度和必需氨基酸赖氨酸的含量较低,因此以玉米为主要成分的饲料普遍需要添加人工合成的赖氨酸以满足动物营养需求。转基因生物技术可以特异性地提高玉米的蛋白质浓度和赖氨酸含量。本实验在玉米(Zea mays L.)中转入来自于土豆(Solanum tuberosum L.)花粉的sb401基因得到高赖氨酸玉米品系Y642。选用Sprague-Dawley(SD)大鼠(Rattus norvegicus)作为实验动物,将Y642玉米和非转基因农大108玉米均配制成低剂量(30%)和高剂
Corn is the main component of animal feed. However, most traditional maize varieties have low protein concentrations and low levels of the essential amino acid lysine. Therefore, corn-based feeds generally require the addition of synthetic lysine to meet the nutritional needs of animals. Genetically modified organisms can specifically increase the corn protein concentration and lysine content. In this experiment, the sb401 gene transferred from the pollen of potato (Solanum tuberosum L.) in maize (Zea mays L.) resulted in the high-lysine maize line Y642. Sprague-Dawley (SD) rats (Rattus norvegicus) were selected as experimental animals, and both Y642 maize and non-transgenic Nongda 108 maize were formulated into low dose (30%) and high dose