He said no part of the cow entered the human food or animal feed chain.

他说没有任何牛肉部分进入了人类食物或者动物蓄养供应链中。

youdao

As I wrote last month, the discovery of melamine in animal feed means that it has likely spread to other parts of the food chain including meat and eggs.

正如我上月所提到的，在动物饲料中发现三聚氰胺也就意味着三聚氰胺极有可能已扩散进入食物链的其它环节，例如肉类和蛋类中。

youdao

Photo 7 ：Swarms of krill, a cornerstone of the entire Antarctic food chain, feed on phytoplankton that grows on the underside of sea ice.

图7： 成群的磷虾是整个南极动物食物链的基础。 它们以浮游生物为食，生长在海冰的上层。

youdao

Redfish will eat that and feed on it. Sheephead,speckled trout, it is part of the food chain."

VOA: standard.2010.05.04

These statistics demonstrate both the complexity of the supply chain from feed farm to table, and illustrate the importance of sustainability in the American food production industry.

FORBES: Impact Investing in Sustainable Agriculture for a New Economy

The volume of cottonseed garbage during the 1800s became so problematic that a number of states passed laws to regulate its disposal.16 But while the bolls and leaves were still trash, in the early 1900s the seed began to move up the value chain to be used as fertilizer and animal feed.

NPR: Texas Cotton: 'Farmer Profits at Every Step'

Deep clams, worms, crabs and other macro-organisms feed on this community, which comes at the bottom of the food chain.

UNESCO: MEDIA SERVICES