nutritional feed additive

例句：

1. 1. The nutritional feed additive helps to improvethe growth rate of the pigs.
   这种营养添加剂有助于提高猪的生长速度。
2. 2. The companyuses this nutritional feed additive to enhance thequality of its products.
   该公司使用这种营养添加剂来提高其产品的质量。
3. 3. The nutritional feedadditive is a crucial component in the dietof many farm animals.
   这种营养添加剂是许多农场动物饮食中的关键成分。