Changes in temperature are just one factor which affects the health of chickens and impacts egg production. Cold stress is an important management factor in regions where winter temperatures drop below 18 ° which is why most hens are kept locked in climate controlled sheds.On genuine free range farms, hens have unrestricted access to outdoor pasture. Although range areas may provide shelter with shrubs and other vegetation, egg production is inevitably affected.
A recent international study study investigated the effect of low temperature on laying performance and egg quality, . Low temperatures significantly increased live body weigh and feed intake, ambient environmental temperature below 16 °C results in negative effects on poultry production performance, such as egg production, egg mass, and egg quality.
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