ArticleAnimals : an open access journal from MDPI2023
Housing Systems Affect Eggshell Lightness and Free Amino Acid Contents of Egg Albumen in Tosa-Jidori Chickens: A Preliminary Research.
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 4 papers.
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Who cites it
4 citing papers in PubMed.
- Quality and Processing Behavior of Egg White and Yolk from Commercial Free-Range and Barn-Laid Eggs: Physical, Compositional and Rheological Assessment in Raw and Heat-Treated (Grilled) States.Foods (Basel, Switzerland) · 2026Article
- Comparative analysis of quality characteristics and flavor compounds in caged and cage-free eggs based on untargeted flavoromics.Food chemistry: X · 2026Article
- Genetic Parameters of Egg Quality Traits and Albumen Density in White Leghorn Chickens.Animals : an open access journal from MDPI · 2026Article
- Assessing the Genetic and Environmental Factors on Egg Amino Acid Traits in Chickens: A Review.Animals : an open access journal from MDPI · 2025Review
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Many countries have gradually shifted to animal welfare-friendly housing systems for egg layers. However, there is still no consensus among researchers on whether the housing system affects egg quality traits. Therefore, this study aimed to determine the effects of housing systems on egg traits and free amino acid contents of albumen and yolk using two types of housing systems, the conventional cage (cage) system and a floor rearing (litter) system. Tosa-jidori (n = 20) hens were divided into two groups. Experiments during the 7 weeks were performed twice by switching the housing systems (first and second stages). One-way analysis of variance was used to evaluate the effects of housing systems on body weight gain, egg traits, albumen and yolk amino acid contents, and fecal corticosterone. We observed significant housing effects in body weight gain, eggshell weight, yolk weight, eggshell thickness, eggshell lightness, and several albumen amino acids (A_Gln, A_His, A_Met, A_Cys, A_Lys, A_Asp, A_Glu, A_Ser, A_Thr, A_Ala, A_Pro, and A_Phe). Notably, a robust effect was seen in eggshell lightness, even after switching housing systems. These results suggest that eggshell lightness and several egg traits, including albumen amino acid contents, can be changed by using the different housing systems.
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