犬猫发生微量元素缺乏症时，出现舔墙、啃土、异食癖、贫血、皮肤病、免疫力下降等症状。

Deficiency of trace minerals will result in licking the wall, chewing the soil, biting the things, anemia, skin disease and lower immunity.

youdao

犬猫发生微量元素缺乏症时，出现舔墙、啃土、异食癖、贫血、皮肤病、免疫力下降等症状。

Deficiency of trace minerals will result in licking the wall, chewing the soil, biting the things, anemia, skin disease and lower immunity.

youdao