Study: Hen Mortality Affected by Housing System

SWEDEN - Free-range and barn-housed (litter-based) layers were more likely to have bacterial infections and parasites, and to suffer from cannibalism than birds kept in battery cages. These are the main conclusions of a recently published paper by Fossum and colleagues at the National Veterinary Institute in Uppsala investigating the causes of mortality in Swedish layer flocks.
calendar icon 16 January 2009
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