ArticleAnimals : an open access journal from MDPI2020
The Effect of the Type of Non-Caged Housing System, Genotype and Age on the Behaviour of Laying Hens.
Article in Animals : an open access journal from MDPI, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
23 citing papers in PubMed.
- Daily behavioral patterns of laying hens kept in a multi-tier system across different microclimatic conditions.Veterinary and animal science · 2026Article
- Enrichment with Hermetia illucens live larvae in a cage-free system: effects on welfare and egg production and quality in laying hens of two genotypes.Poultry science · 2026Article
- Welfare assessment of turkeys (EFSA journal. European Food Safety Authority · 2026Article
- The interaction effects of the naked neck gene and housing system on egg production, egg quality, blood biochemical parameters and immunity of laying hens under hot climate.Animal bioscience · 2025Article
- Antioxidant Synergy in a Mixture of Powder Plant Leaves and Effects on Metabolic Profile, Oxidative Status and Intestinal Morpho-Histochemical Features of Laying Hens.Animals : an open access journal from MDPI · 2025Article
- Maximum vertical height during wing flapping of laying hens captured with a depth camera.PloS one · 2025Article
- Effects of Housing Systems on Production Performance, Egg Quality, Tonic Immobility and Feather Score in Laying Hens.Veterinary medicine and science · 2024Article
- Laying Hens: Why Smothering and Not Surviving?-A Literature Review.Animals : an open access journal from MDPI · 2024Review
- Stress-Related Gene Expression in Liver Tissues from Laying Hens Housed in Conventional Cage and Cage-Free Systems in the Tropics.Veterinary medicine international · 2024Article
- Effect of different pasture species on welfare and behavior of slow-growing broiler chickens in free-range production system.Tropical animal health and production · 2023Article
- Welfare of broilers on farm.EFSA journal. European Food Safety Authority · 2023Article
- Soil Organic Matter and Nutrient Levels in Outdoor Runs in Organic Laying Farms.Animals : an open access journal from MDPI · 2023Article
- A Comparison of the Plumage Condition of Three Egg-Laying Poultry Genotypes Housed in Non-Cage Systems.Animals : an open access journal from MDPI · 2023Article
- The effects of mulberry (Veterinary world · 2022Article
- Data mining-based discriminant analysis as a tool for the study of egg quality in native hen breeds.Scientific reports · 2022Article
- Indigenous, Yellow-Feathered Chickens Body Measurements, Carcass Traits, and Meat Quality Depending on Marketable Age.Animals : an open access journal from MDPI · 2022Article
- The Potential of Understory Production Systems to Improve Laying Hen Welfare.Animals : an open access journal from MDPI · 2022Review
- Relationship between Mucosal Barrier Function of the Oviduct and Intestine in the Productivity of Laying Hens.The journal of poultry science · 2022Review
- Welfare implications for broiler chickens reared in an insect larvae-enriched environment: Focus on bird behaviour, plumage status, leg health, and excreta corticosterone.Frontiers in physiology · 2022Article
- Advanced Practical Strategies to Enhance Table Egg Production.Scientifica · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study investigated the welfare of laying hens in different non-caged housing systems, namely a deep-litter barn system (BS), a free-range system (FRS) and an organic system (OS). The study was conducted on 270 hens of a native breed Green-legged Partridge (Z-11) and 270 Hy-Line Brown hybrids. Visual scans were performed to record behaviour of hens. Hens were housed in groups of 30 and observed over the course of one day at 20, 36 and 56 weeks of age. Dustbathing, scratching, wing stretching, wing flapping and preening were recorded as comfort behaviours. Pecking, fighting, threatening and chasing were recorded as agonistic behaviours. The percentage of run use was higher in native hens than in commercial hens (
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.