ArticlePoultry science2021
A comparison of intestinal integrity, digestive function, and egg quality in laying hens with different ages.
Article in Poultry science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
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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.
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Who cites it
43 citing papers in PubMed, 72 citations in OpenAlex.
- Effects of Dietary Boron Supplementation on Performance, Egg Quality, and Physiological Responses in Late-Laying Hens Subjected to Feed Restriction.Biological trace element research · 2026Article
- Determination and prediction of standardized ileal amino acid digestibility of wheat shorts for pullets during the brooding and growing phases.Animal bioscience · 2026Article
- Nutritional and Functional Effects ofAnimals : an open access journal from MDPI · 2026Article
- Effects of Oligomeric Ultrafine-Nano Hydrogen Water on Laying Performance, Egg Quality, Nutrient Composition, and Intestinal and Reproductive Responses in Late-Laying Hens.Animals : an open access journal from MDPI · 2026Article
- Determination and stage-specific prediction models for standardized ileal amino acid digestibility of corn in peak- and late-laying hens.Poultry science · 2026Article
- Dietary theabrownins alleviate age-related declines in productive performance and egg quality by improving intestinal health in laying hens.Journal of animal science and biotechnology · 2026Article
- Effect of age on eggshell color and Haugh unit of eggs, protoporphyrin IX and ovomucin deposition and related gene expression in Hyline Brown laying hens.Animal bioscience · 2026Article
- Rehmanniae Radix Powder Enhances Antioxidative Capacity, Immunity, and Gut Health in Late-Phase Laying Hens.Animals : an open access journal from MDPI · 2026Article
- Fiber-degrading enzymes improved egg production, quality, and apparent retention of components in post-peak Lohmann Brown-Classic laying hens fed a high-fiber diet.Poultry science · 2026Article
- Early-Phase Response of Broiler Breeders to 25-Hydroxyvitamin DAnimals : an open access journal from MDPI · 2026Article
- Dietary biological silage from tambaqui by products affect performance, physiology, and egg quality of young and old laying hens.Tropical animal health and production · 2026Article
- In ovo injection of vitamin DPoultry science · 2026Article
- Limosilactobacillus reuteri enhances production performance and ovarian function via modulation of the gut-ovary axis in laying hens.Microbiome · 2026Article
- Effect of Replacing Conventional Corn with Corn Containing Thermostable α-Amylase Enzyme (AMY797E) in Standard and Low-Energy Diets in Laying Hens.Animals : an open access journal from MDPI · 2026Article
- Effects of dietary taurine supplementation on polyunsaturated fatty acids, cholesterol, and egg quality of egg of hens.Frontiers in nutrition · 2026Article
- The Addition of Marigold Extract to the Diet Improved the Performance of Laying Hens in the Late Laying Period by Increasing Their Antioxidant Capacity, Lipid Metabolism, and Microbial Composition.Antioxidants (Basel, Switzerland) · 2025Article
- Egg yolk-derived phosvitin as a natural chelator:Veterinary world · 2025Article
- Dietary capsaicin supplementation improves production performance and intestinal health of laying hens by regulating intestinal microbiota.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2025Article
- Molecular Mechanisms and Regulatory Factors Governing Feed Utilization Efficiency in Laying Hens: Insights for Sustainable Poultry Production and Breeding Optimization.International journal of molecular sciences · 2025Review
- D-Glucuronolactone Supplementation Enhances Production Performance, Eggshell Quality, and Liver Health in Laying Hens.Animals : an open access journal from MDPI · 2025Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Intestinal integrity, digestive enzyme activity, nutrient utilization, and egg quality of laying hens at different ages were evaluated and compared in this study. A total of 192 Hy-line Brown laying hens at 195-d-old (D195 group), 340-d-old (D340 group), and 525-d-old (D525 group) were allocated into one of 3 groups in accordance with their ages. Each group had 8 replicates of 8 birds each, and all birds were fed a maize-soybean meal basal diet for a 2-wk experiment. Compared with the D195 group, intestinal villus height and ratio of villus height to crypt depth, as well as serum D-lactate content increased in the D525 group (P < 0.05). The sucrase and maltase activities in the jejunal mucosa, amylase activity in the pancreas, and trypsin activity in the jejunal chyme of 525-d-old hens were lower than their 195-d-old counterparts (P < 0.05). In addition, there was a decline of trypsin and lipase activities in the ileal chyme of hens from D525 group in comparison with D195 or D340 group (P < 0.05). Apparent retention of dry matter and crude protein of birds in D340 and D525 group decreased when compared with the D195 group (P < 0.05). Moreover, birds in the D525 group exhibited a lower level of ether extract retention, and higher contents of several excreted amino acids than those in the D195 group (P < 0.05). Compared with the D195 group, eggs harvested from D525 group exhibited lower albumen height, eggshell strength and thickness, and a higher egg weight (P < 0.05). In conclusion, increased intestinal permeability (higher serum D-lactate content), compromised digestive function (lower digestive enzyme activities and apparent nutrient retention, and higher concentrations of excreted amino acids), and poor egg quality (lower albumen height, eggshell strength, and thickness) were observed with increasing age in the laying hens.
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