[請益] 動物不用像人一樣攝取多種營養來源
人類要攝取充足的營養才會頭好壯壯
澱粉、蛋白質、礦物質、維生素...
所以肉、奶、蔬果...都要吃很多種，才會營養均衡
那為什麼像人類飼養的草食動物，例如馬、羊，只給吃牧草就好啊
食物來源怎麼那麼單一化就能滿足
謝謝
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