ArticleAnimals : an open access journal from MDPI2022
Influence of Increased Freedom of Movement on Welfare and Egg Laying Pattern of Hens Kept in Aviaries.
Article in Animals : an open access journal from MDPI, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
16 citing papers in PubMed.
- Dual-strain Bacillus subtilis 597 and 600 complex improves productive performance and nutrient digestibility, egg quality and physiological status in early-to-peak phase laying hens.Poultry science · 2026Article
- Oxytocin and cortisol in goat milk during early lactation under different housing conditions: a descriptive study.Frontiers in veterinary science · 2026Article
- Environmental Enrichment in Rabbit Husbandry: Comparative Impacts on Performance and Welfare.Animals : an open access journal from MDPI · 2024Review
- Assessing the effectiveness of cannabidiol additive supplementation on canine behavior and cortisol levels.Heliyon · 2024Article
- Content of Toxic Elements (Arsenic, Cadmium, Mercury, Lead) in Eggs from an Ethically Managed Laying Hen Farm.Animals : an open access journal from MDPI · 2024Article
- Dietary 25-Hydroxycholecalciferol Supplementation as a Vitamin DAnimals : an open access journal from MDPI · 2024Article
- Dietary Effects of Some Plant Extracts on Laying Performance, Egg Quality, and Some Blood Parameters in Laying Hens at Different Cage Densities.Animals : an open access journal from MDPI · 2023Article
- Association with Different Housing and Welfare Parameters on Results of a Novel Object Test in Laying Hen Flocks on Farm.Animals : an open access journal from MDPI · 2023Article
- Comparative Assessment of the Stress Response of Cattle to Common Dairy Management Practices.Animals : an open access journal from MDPI · 2023Article
- The Effects of Mild Disturbances on Sleep Behaviour in Laying Hens.Animals : an open access journal from MDPI · 2023Article
- Performance and Welfare of Sows Exposed to Auditory Environmental Enrichment in Mixed or Collective Housing Systems.Animals : an open access journal from MDPI · 2023Article
- An Initial Study on the Use of Machine Learning and Radio Frequency Identification Data for Predicting Health Outcomes in Free-Range Laying Hens.Animals : an open access journal from MDPI · 2023Article
- Evaluation of Physical Egg Quality Parameters of Commercial Brown Laying Hens Housed in Five Production Systems.Animals : an open access journal from MDPI · 2023Article
- Effects of Glyceryl Monolaurate on Production Performance, Egg Quality, Oviduct Cytokines and Intestinal Microflora of 66 Weeks Old Laying Hens.Animals : an open access journal from MDPI · 2023Article
- Effect of replacing dicalcium phosphate with mono-dicalcium phosphate to supplement phosphorus on laying performance, phosphorus-calcium metabolism and bone metabolism of aged laying hens.Frontiers in veterinary science · 2023Article
- Mitigation of heat stress effects on laying hens' performances, egg quality, and some blood parameters by adding dietary zinc-enriched yeasts, parsley, and their combination.Frontiers in veterinary science · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
This work investigates the effects of structural modifications on the welfare level and laying patterns of hens in a three-tier commercial aviary system. Four experimental groups were used: C (control, housed in a traditional aviary); LM (longitudinal movement, in which internal partitions were removed); VM (vertical movement, in which ramps were installed); and FM (freedom of movement, both LM and VM modifications). Hens showed worse body condition scores (p < 0.05) in all the modified aviaries, while plumage condition was improved in FM but worsened in VM (p < 0.05). No significant effect was observed on egg deposition patterns, egg quality or keel bone damage. When ramps were available (VM and FM groups), hens reduced the number of flights and increased the number of walks from 0.52 to 7.7% of the displacements on average (p < 0.05). Apart from some feather pecking concerns in VM (likely due to overcrowding in some favourite aviary areas), LM and FM seemed to facilitate animal movement and promote species−specific behaviour. It is concluded that hen welfare in aviary systems can be improved by means of tailored structural modifications. Producers may therefore adopt some of these modifications (providing ramps and/or removing vertical barriers) to enhance the welfare of hens.
Indexed as
Identifiers
What OpenQuestion holds
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.