Air Quality in Alternative Housing Systems may have an Impact on Laying Hen Welfare. Part II—Ammonia
作者： Bruce David , Cecilie Mejdell , Virginie Michel , Vonne Lund , Randi Moe
DOI: 10.3390/ANI5030389
关键词:
摘要: The EU ban on conventional barren cages for laying hens from 2012 has improved many aspects of laying hen welfare. The new housing systems allow for the expression of highly-…
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