从道德角度而言，鸡有足够的意识或“知觉”，能够在健康状况不佳的情况下感到疼痛，在圈舍条件较差的情况下产生缺失感。
From an ethical perspective, chickens have a sufficient degree of awareness or "sentience" to suffer pain if their health is poor, or deprivation if they are poorly housed.
从科学角度而言，除垢就是保持健康良好。
Scientifically speaking, cleaning away dirt is good to health.
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