Evidence map›Paper›PMID 36830538›Full record

ArticleAnimals : an open access journal from MDPI2023

Spatial Variability of External Egg Quality in Vertical Naturally Ventilated Caged Aviaries.

Letícia Cibele da Silva Ramos Freitas, Ilda de Fátima Ferreira Tinôco, Richard Stephen Gates, Tatiany Carvalho Dos Santos, Rafaella Resende Andrade, Matteo Barbari, Gianluca Bambi

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Animals : an open access journal from MDPI, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Letícia Cibele da Silva Ramos FreitasDepartment of Agricultural Engineering, Federal University of Viçosa (UFV), Viçosa 36570-900, MG, Brazil.
Ilda de Fátima Ferreira TinôcoDepartment of Agricultural Engineering, Federal University of Viçosa (UFV), Viçosa 36570-900, MG, Brazil.
Richard Stephen GatesEgg Industry Center, Departments of Agricultural and Biosystems Engineering, and Animal Science, Iowa State University, Ames, IA 50011, USA.ORCID 0000-0003-2812-1739
Tatiany Carvalho Dos SantosDepartment of Agricultural Engineering, Federal University of Viçosa (UFV), Viçosa 36570-900, MG, Brazil.
Rafaella Resende AndradeDepartment of Agriculture, Food, Environment and Forestry, University of Firenze, 50145 Firenze, Italy.
Matteo BarbariDepartment of Agriculture, Food, Environment and Forestry, University of Firenze, 50145 Firenze, Italy.ORCID 0000-0002-0760-8604
Gianluca BambiDepartment of Agriculture, Food, Environment and Forestry, University of Firenze, 50145 Firenze, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

External egg quality is an essential parameter of egg production as it relates directly to economic losses. This study evaluated the spatial variability of external egg quality in five naturally ventilated caged vertical aviaries. Differences caused by bird age and thermal and luminous variability within aviaries during winter and summer were analyzed. Data on aviary air temperature, relative humidity, light intensity, and external egg quality were collected at evenly distributed points along the aviary length within three levels of cages. The experimental design was completely randomized in a factorial scheme. In the summer, the highest air temperature and lowest relative humidity were found in central cages, mainly in upper center cages; hens produced eggs with a lower weight and shape index in this area. Similar results were obtained in the winter. In the summer, eggs with lower shell weight and thickness were also produced by hens housed in the central cages, but in the winter, the opposite result was obtained. This study of the spatial variability of external egg quality proved efficient in detecting areas within an aviary with poor quality eggs; improvements to design and management in these areas could help management improve production efficiency and contribute to a sustainable egg supply.

Indexed as

eggshell qualitylaying hensspatial distributionthermal conditions

Identifiers

PMID36830538
PMCPMC9952415

What OpenQuestion holds

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Registered trials

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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.