Phytoplankton are the foundation of the aquatic food web, the primary producers, feeding everything from microscopic, animal-like zooplankton to multi-ton whales.
浮游植物是水生食物网的基础，作为初级生产者，它们是小到微观浮游动物、大到数吨的鲸鱼的食物。
Agricultural producers have also warned of sharp hikes next year on meat and milk products, following a doubling from 2009 of the price of animal feed.
农业相关生产商也提出警告下个年度肉类和奶制品价格会大幅提升，因为自2009年以来饲料价格已经涨了2倍。
Livestock producers, veterinarians, animal nutritionists, agricultural extension agents, creamery managers, and other dairy professionals begin their work with this degree.
畜牧生产者，兽医，动物营养学家，农业推广人员，奶油生产管理人员和其他乳制品的专业人士都是学习此专业的。
Animal feed is the biggest cost for most cattle producers.
对多数养牛人来说，动物饲料是最大的成本。
Meat producers now have to pay more for soybeans because there is less available for animal feed. This is how corn-based ethanol affects the price of meat products.
肉类生产业主现在必须采购高价大豆，因为动物饲料供应不足，这是由于玉米乙醇影响到肉类产品的价格。
Meat producers now have to pay more for soybeans because there is less available for animal feed. This is how corn-based ethanol affects the price of meat products.
肉类生产业主现在必须采购高价大豆，因为动物饲料供应不足，这是由于玉米乙醇影响到肉类产品的价格。
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