Effect of housing system and hybrid type on the welfare of laying hens
2008
Peric, L., Poljoprivredni fakultet, Novi Sad (Serbia) | Milosevic, N., Poljoprivredni fakultet, Novi Sad (Serbia) | Tolimir, N., Institut za primenu nauke u poljoprivredi, Beograd (Serbia)
Housing system has a significant effect on the welfare of laying hens, and some of the factors for estimating the welfare are the condition of feathers and foot pads. Besides that duration of tonic immobility (TI) can be used as a method of estimating stress, as it is considered to be positively related to fear. The aim of this work was to evaluate these parameters in different housing systems and between two strains (white and brown layers) at the beginning of the production cycle. Feather and leg condition were evaluated by scoring system and duration of TI was measured. Obtained results showed that type of the cage as well as the type of hybrid, have significant influence on feather and foot condition. Duration of TI was not influenced by the type of the cage, but significant influence of the strain was established.
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