狗狗缺维生素 A :会出现皮肤病,视力下降,心脏血液循环障碍症。能够补充这些食物:肝脏、奶片、鸡蛋、肉等;狗狗缺维生素 C:可导致坏血病。能够补充这些食物:肝脏、水果、蔬菜等;狗维生素D缺乏:异常的骨骼和牙齿反应导致缺钙。可以补充这些食物:牛奶片。
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