bovine growth hormone

例句：

1. 1.Bovine growth hormone is used to increase milk production in dairy cows.
   牛生长激素用于增加奶牛的产奶量。
2. 2.The researchers found that bovine growth hormone could enhance the immune system of pigs.
   研究人员发现，牛生长激素可以增强猪的免疫系统。
3. 3. Bovine growth hormone has been banned in many countries due to concerns about its potential health risks.
   由于担心潜在的健康风险，许多国家已经禁止使用牛生长激素。