Tauson, 2005 – Management and housing systems for layers – effects on welfare and production
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Concerns regarding the welfare of laying hens raised in battery cages have led to the development of enriched cages that allow hens to perform natural behaviors including nesting, roosting, and scratching. This study was conducted to compare indices of production and welfare in birds housed in 2 different caging systems. Shaver White hens were housed …
1. The advantages and disadvantages of various housing systems for laying hens were compared as a pilot study for work in commercial conditions. 2. At 16 weeks of age, 284 hens were introduced into one of 6 housing systems: two types of conventional cages (small: SC; large: LC), furnished cages (small: SF; large: LF), and …
1. Based on our previous studies, we designed a medium-sized furnished cage with a dust bath and nest box on both sides of the cage (MFS) and evaluated its usefulness. 2. We used 180 White Leghorn layers. At the age of 17 weeks, the birds were distributed at random into one of the 4 cage …
Laboratory animal well-being can be improved by housing the animals in species-specific natural or near-to-natural environments. An enriched environment may have a similar effect on chickens. The purpose of this study was to examine if housing environment (furnished cages vs. battery cages) effects the well-being of laying hens. One hundred ninety-two 1-d-old non-beak-trimmed White Leghorn …
The battery cage system is being banned in the European Union before or by 2012, and the furnished cage system will be the only cage system allowed after 2012. This study was conducted to examine the different effects of caging systems, furnished cages vs. battery cages, on bird behaviors. One hundred ninety two 1-d-old non-beak-trimmed …
In order to find out whether furnished cages contribute to improving the welfare of laying hens, humerus quality and adrenal responsiveness were evaluated in laying hens reared in standard (S) and furnished cages (F). Four cage models were used: S5, a standard cage model with 5 hens per cage; S6, a standard cage model with …
A total of 1992 ISA Brown hens were housed from 18 to 70 weeks of age, in four different types …
1. Foot pad health was determined macroscopically and histologically in two trials with Lohmann Selected Leghorn (LSL, white layer strain) and Lohmann Brown (LB) laying hens kept in a small group housing system (40 and 60 hens) and two types of furnished cages (10 and 20 hens). 2. A total of 864 foot pads (648 …
1. This study included two designs of furnished cages for 16 hens; H-cages divided into two apartments by a partition …
Production performance, including egg quality, and proportion of eggs laid in nests were studied in furnished experimental cages incorporating nests, …
The effects of 3 different furnished cage systems (Aviplus, Eurovent 625a, Eurovent 625A) on 2 different laying hen strains [Lohmann Selected Leghorn (LSL), Lohmann Brown (LB)] were examined for the traits of production, egg quality, bone strength, claw length, and keel bone status. Two trials were carried out in which all hens received identical feeding …
1. Based on our previous studies, we designed a medium-sized furnished cage with a dust bath and nest box on both sides of the cage (MFS) and evaluated its usefulness. 2. We used 180 White Leghorn layers. At the age of 17 weeks, the birds were distributed at random into one of the 4 cage …
1. The objective was to determine the relation between social rank and use of resources in a small furnished cage …
Les systèmes d’élevage utilisés pour la production d’oeufs de consommation ont totalement changé au cours des 60 dernières années. La …
Two experiments were conducted to determine the efficacy and possible economic benefits of using environmental enrichment devices (EED) to alter the behavior of two White Leghorn strains in laying cages. The first experiement compared using EEDs with beak-trimmed (BT) and non-beak-trimmed (non-BT) birds; the second experiement compared three different cage densities with and without EEDs. …
This experiment examined the welfare related effects of individual furniture items alone or in combination in a factorial experiment using Hy-Line Brown hens housed in 8-bird furnished cages. Welfare was assessed during two 8-wk sampling periods commencing at 29 and 59 wk of age. Measurement of stress, immunology, feather, foot and claw condition, and behavior …
1. A 3-year trial was carried out of cages for laying hens, occupying a full laying house. The main cage designs used were 5000 cm² in area, 50 cm high at the rear and furnished with nests and perches. F cages had a front rollaway nest at the side, lined with artificial turf. FD cages …