In free range systems, hens have continuous daytime access to open-air run that is mainly
covered with vegetation. Free range systems potentially provide a major advantage for poultry
welfare. However, in practice, there are problems such as dirty and displaced eggs, parasites,
interference by predators, uneven distribution of birds, preference for the area close to the house,
grassland damage, feather pecking and cannibalism (APPLEBY et al. 1992; JONES 1997;
BUBIER and BRADSHAW 1998).
In free range systems, hens have continuous daytime access to open-air run that is mainlycovered with vegetation. Free range systems potentially provide a major advantage for poultrywelfare. However, in practice, there are problems such as dirty and displaced eggs, parasites,interference by predators, uneven distribution of birds, preference for the area close to the house,grassland damage, feather pecking and cannibalism (APPLEBY et al. 1992; JONES 1997;BUBIER and BRADSHAW 1998).
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