Objective: To determine the activity of avidin in hens egg white power after heat treatment.

目的：了解经过一定温度处理的蛋清粉中抗生物素蛋白的活性。

youdao

We eat hens' egg.

我们吃鸡蛋。

youdao

New EU legislation will ban the use of battery cages for egg-laying hens from 2012.

BBC: Northern Ireland Assembly

An EU ban on battery cages saw better conditions for egg-laying hens.

BBC: Your highlights of 2012 in drawings

And almost nine in ten of 32m egg-laying hens are kept in cages.

ECONOMIST: Animal welfare: Foxed | The