ReviewPoultry science2021
Effect of genotype and some shell quality traits on lysozyme content and activity in the albumen of eggs from hens under the biodiversity conservation program.
Review in Poultry science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 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
13 citing papers in PubMed, 23 citations in OpenAlex.
- Nutritional and bioactive properties of native chicken eggs: Global perspectives on human health implications.Poultry science · 2026Review
- Evaluating the effects of single-dose oral lectin administration on intestinal morphology and tibial structure in roosters and capons.Poultry science · 2026Article
- Effects of Dietary Bamboo Leaf Flavonoids on Egg Quality, Liver Health, and Inflammatory Responses in Aged Laying Hens.Animals : an open access journal from MDPI · 2026Article
- Optimizing eggshell quality in extended laying periods: Insights and strategies.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2026Review
- Article
- Physicochemical Index Analyses of the Egg White in Blue-Shelled Eggs and Commercial Brown-Shelled Eggs during Storage.Foods (Basel, Switzerland) · 2023Article
- Uterine inflammation status modulates eggshell mineralization via calcium transport and matrix protein synthesis in laying hens.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2023Article
- Influence of Genotype on Productivity and Egg Quality of Three Hen Strains Included in a Biodiversity Program.Animals : an open access journal from MDPI · 2023Article
- Effect of Hen Genotype and Laying Time on Egg Quality and Albumen Lysozyme Content and Activity.Animals : an open access journal from MDPI · 2023Article
- Chemical properties of the coffee grounds and poultry eggshells mixture in terms of soil improver.Scientific reports · 2022Article
- Antibacterial Properties of TMA againstFoods (Basel, Switzerland) · 2022Article
- Effect of the pigmentation, shine, weight, and shape index of the quail egg (Journal of advanced veterinary and animal research · 2021Article
- The Influence of Sex on the Slaughter Parameters and Selected Blood Indices of Greenleg Partridge, Polish Native Breed of Hens.Animals : an open access journal from MDPI · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of the study was to determine shell quality of eggs laid by some strains of native breed hens of different ages, with special consideration of their effect on lysozyme concentration and enzymatic activity. Evaluation was made of the eggshells from 6 breeds/strains of laying hens covered by the gene pool protection program in Poland: Greenleg Partridge (Z-11), Yellowleg Partridge (Ż-33), Rhode Island Red (R-11), Rhode Island White (A-33), Sussex (S-66), and Leghorn (H-22). Significant (P ≤ 0.01) differences were established for all the shell quality characteristics between hen strains. As the birds aged, shell weight and porosity increased, and shell compression strength decreased in all the experimental groups. Lysozyme content was lowest in white-shelled eggs (H-22) and highest in cream-colored and light brown eggs (Z-11, Ż-33, and R-11). Furthermore, age of hens had a greater effect on lysozyme concentration and activity in the eggs than on shell quality traits. Regardless of the layer genotype, eggs from older hens showed higher lysozyme concentration and enzymatic activity.
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.