【摘要】 微量元素铁、铜、锌、硒在动物生命活动中其中非常重要的作用,缺乏可导致动物患发一系列的病症。动物缺铁可导致其生长发育受阻及免疫力降低;铜缺乏时可有被毛稀疏、粗糙、缺乏光泽、弹性降低、颜色变浅等症状;缺锌时可表现鼻镜干燥,爪垫增厚或龟裂,被毛发育不良、易断;硒缺乏可表现被毛粗糙,骨骼肌变性、退色。更多还原

【Abstract】 Trace elements Fe, Cu, Zn and Se are very important for life, and deficiency can result in the metabolic diseases. The symptoms of immunity decreased, retard, and anemia could be found in Iron deficiency, The symptoms of fur sparsity, coarse, vulnerable and fade could be found in Copper deficiency. The symptoms of nasoscope dry, claw pad incrassation and chap, fur sparsity and vulnerable could be found in Zinc deficiency, and the symptoms of fur sparsity and fade, degeneration skeletal muscle could be found in Selenium deficiency.更多还原