昆虫产生的氨比猪和家禽少，它们产生的甲烷比家畜少十倍，而产生的一氧化二氮比家畜少三百倍。

Insects produce less ammonia than pig and poultry farming, ten times less methane than livestock, and 300 times less nitrous oxide.

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但是还不太清楚的是什么检测被使用了；二月的时候，仅有关于抗体的血检验会显示猪是否携带病毒，当人类流感被认为在已经爆发时。

But it was not clear what test was used; only blood tests for antibodies would show whether pigs had the virus in February, when the human outbreak is thought to have begun.

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数据表明昆虫的生长速度更快，在获得相同单位体重的情况下，它们相比猪和牛，产生的二氧化碳更少。

The data indicated that insects grow more rapidly, and they emit less carbon dioxide per unit of weight gained than do cattle and pigs.

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