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Huipin Lee

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Articles

Suppliers’ Perspectives on Cage-Free Eggs in China

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By Maria Chen, Yuchen Liu, Daniel M. Weary, Huipin Lee
| MDPI
1. Introduction Domestication and husbandry of chickens in China dates back to 3000 BCE [1], but before the 1970s, chickens often lived in small-scale free-range systems and were often indigenous breeds [2]. Increasing flock sizes and the use of cages became common in the 1970s after the introduction of Reform and Opening Up Policies [2]. Since 1985, China has been the world’s largest producer and consumer of eggs, with 3.2 billion hens producing 40% of the world’s eggs in 2021 [3].
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