Cows, like humans, produce insulin-like growth factor in response to growth hormones and release it into the blood, and the protein makes its way into their milk.
2
你可曾怀疑过，为什么生产乳制品的奶牛为什么被注射了激素却没有标明？
Have you ever wondered why dairy products made from cows injected with the hormone aren't labeled?
3
奶牛体中的激素即使在高温下也无法打破。
The hormones fed to cows cannot be broken down, even at high temperatures.
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