composition of feed

例句：

1. 1. The composition of the feed is crucial for the growth of the livestock.
   饲料的成分对牲畜的生长至关重要。
2. 2. The research team has identified several new feed ingredients that can improve animal health.
   研究团队已经识别出几种新的饲料成分，可以改善动物健康。
3. 3.The farmer carefully weighs the feed components to ensure the correct ratio for optimal nutrition.
   农民仔细称量饲料成分，以确保正确的比例以获得最佳营养。