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- W2470249745 abstract "Behavioural observations were conducted at two different farms in Lohmann Selected Leghorn (LSL), Lohmann Brown (LB) and Lohmann Silver (LS) laying hens kept in furnished cages (Aviplus (AP)), small group systems (Eurovent 625a-EU (SG)) and modified compartments of small group systems (MSG) with three variants of elevated perches (back perches elevated (BE), front perches elevated (FE), both perches elevated (ST)). The study comprised three trial periods and layers' use of functional areas (wire floor, dust bath, nest box, perch), resting behaviour, locomotion and dustbathing and pecking behaviour were analysed during daytime. The highest number of hens on the wire floor was recorded in AP. Hens in SG and MSG showed highest locomotion activities. The frequency of hens walking on the wire floor was highest in ST compartments when longer distances could be covered without crossing non-elevated perches. Dust baths were frequented more often for other activities rather than dust bathing behaviour. Feather pecking and pecking against objects was highest in AP (LSL, LB), whereas in LS layers, it mainly occurred in MSG. Perch use was highest in SG with non-elevated perches. In all three variants of MSG compartments, elevated back and/or front perches were only used to a small extent and highest perching and resting activity was observed on non-elevated perches. The study shows that SG and MSG housing systems could increase layers' locomotion activities, whereas the possibility to perform dust bathing appears insufficient. However, in LS hens, dust bathing on wire floor was more frequent in AP compared to SG and MSG and in the latter two systems more dust-baths were performed on dustbathing mats in comparison to wire floor. Elevated perches were only accepted to a small extent during the day, which might be due to inappropriate perch design and/or perch position" @default.
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- W2470249745 date "2010-01-01" @default.
- W2470249745 modified "2023-09-27" @default.
- W2470249745 title "Use of functional areas, perch acceptance and selected behavioural traits in three different layer strains kept in furnished cages, small group systems and modified small group systems with elevated perches" @default.
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