2008 Savremena poljoprivreda 57 1-2.indd - Poljoprivredni fakultet ...

TAUSON, R.: Technical changes in cage design– infl uence on production – economy and welfare
for the laying hen. Neuerungen auf dem Gebiet der Käfi ghaltung von Hühnern. H. Arbeiten. Stuttgart,
Verlag Eugen Ulmer (1985)
TAUSON, R.: European alternative housing systems for layers– health, production and environmental
considerations. Proc Aust Poult Sci Sym 8: 65–77. (1996).
EFFECT OF HOUSING SYSTEM AND HYBRID TYPE
ON THE WELFARE OF LAYING HENS
LIDIJA PERIĆ, NIKO MILOŠEVIĆ, NATAŠA TOLIMIR
Summary
Housing system has a signifi cant 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 signifi cant infl uence on feather and foot condition. Duration
of TI was not infl uenced by the type of the cage, but signifi cant infl uence of the strain
was established.
Key words: laying hens, cages, hybrid, welfare
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