ArticlePoultry science2025
Time-course analysis of the effect of paraprobiotics ABG0050 on the intestinal immune system of broilers.
Article in Poultry science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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Who cites it
3 citing papers in PubMed.
- Article
- Interplay between gut health, immunity, and bone development in broilers: role of feed additives.Poultry science · 2026Review
- Paraprobiotics in Modern Broiler Production: Stability, Safety, and Multifunctional Benefits - a Comprehensive Review.Probiotics and antimicrobial proteins · 2026Review
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
With tightening regulations on antibiotic use in broiler production, paraprobiotics (inactivated probiotics) may be a promising alternative to antibiotics. The aim of this study was to analyze the effects of continuous intake of the paraprobiotic Lactiplantibacillus plantarum ABG0050 on growth-associated changes in the immune system of broilers at homeostasis and on the response to immune stimulation. Eighteen three-day-old broiler chicks were divided into two groups: 1: basal diet (Ctrl), 2: basal diet with 0.01 % paraprobiotic ABG0050 (LB). They were reared until 21 days of age, and feces, containing immune-related components secreted in the digestive tract, were collected over time to measure changes in immune markers. On the last day, five birds per group were immunologically stimulated using LPS. Five hours after LPS administration, the birds were dissected, and proventricular tissue was collected to evaluate the expression levels of immune factors at their primary production sites. Analysis of immune markers from fecal samples over time revealed that the expression of antimicrobial peptides AvBD (avian β-defensin) 7 and 12 significantly changed in the LB group, suggesting a modification of innate immunity. Correlation analysis between immune markers and body weight gain (BWG) showed both positive and negative correlations. The expression levels of AvBDs and cytokines in the proventricular tissue after LPS stimulation were measured, and a two-way ANOVA was conducted to analyze the effects of LPS and LB. The results showed no significant effects of either factor on AvBDs, but the expression of Th1-type cytokines, including IFN-γ, IL-6, and IL-12, was significantly increased by the LB factor without interaction with LPS, suggesting that the Th1/Th2 balance was shifted towards Th1 dominance regardless of LPS stimulation. In conclusion, the paraprobiotic ABG0050 modifies both the innate and acquired immune systems of broilers, and the changes in immune markers were also associated with BWG. Furthermore, the modulation of the adaptive immune system by ABG0050 was observed regardless of antigen stimulation.
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