Publications by authors named "G Schyns"
Lactic acid bacteria produce γ-aminobutyric acid (GABA) as an acid stress response. GABA is a neurotransmitter that may improve sleep and resilience to mental stress. This study focused on the selection, identification and optimization of a bacterial strain with high GABA production, for development as a probiotic supplement.
View Article and Find Full Text PDFThis study evaluated the supplementation of a precision biotic (PB) on the enterohepatic health markers and growth performance of broiler chickens undergoing an enteric challenge. In the first study, three treatments were used: Unchallenged Control (UC); Challenged Control (CC; dietary challenge and 10× dose of coccidia vaccine); and a challenged group supplemented with PB (1.3 kg/ton).
View Article and Find Full Text PDFFully understanding the dynamic distribution of the gut microbiota in pigs is essential, as gut microorganisms play a fundamental role in physiological processes, immunity, and the metabolism of nutrients by the host. Here, we first summarize the characteristics and the dynamic shifts in the gut microbial community of pigs at different ages based on the results of 63 peer-review publications. Then a meta-analysis based on the sequences from 16 studies with accession numbers in the GenBank database is conducted to verify the characteristics of the gut microbiota in healthy pigs.
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- The study examined how vitamin E and selenium supplementation affects certain genes related to antioxidants, immune response, and microbiota in broiler chicks exposed to heat stress from day 28 to 35.
- A total of 640 male broiler chicks were divided into groups based on whether they were given a basic diet or one supplemented with vitamin E and selenium while being subjected to either normal temperatures or heat stress.
- Results showed that the supplemented diet led to a notable decrease in certain inflammatory and immune-related mRNA levels, while specific beneficial gut bacteria were enriched, indicating potential improvements in health and resilience against heat stress.
A dietary glycan-based precision biotic (Glycan PB) was evaluated on the performance, welfare indicators, and litter characteristics of broiler chickens. In Trial 1, the main effects of Glycan PB dose (0, 250 and 500 g/metric ton (MT)) and xylanase supplementation (0 or 100 g/MT) were tested, as was their interaction. In Trial 2, pens located inside a commercial house were used to test the effect of Glycan PB supplementation (500 g/MT) versus a control diet.
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