Study links silicon supplementation to better late-lay performance
Bottom line
A new study in Animals reports that adding dietary silicon dioxide to feed improved production performance in late-phase laying hens, with the strongest effects seen at moderate inclusion levels rather than the highest dose. In the 8-week trial, 360 hens were assigned to diets containing 0%, 0.1%, 0.2%, 0.4%, or 0.8% SiO2. The authors say silicon supplementation was associated with better laying performance alongside shifts in antioxidant markers, reproductive hormones, and serum copper and zinc status, suggesting the response may be tied to oxidative balance and mineral regulation, not just simple feed fortification. (link.springer.com)
Why it matters: For veterinary professionals and poultry advisers, the paper adds to a growing body of late-lay nutrition research focused on extending productive performance in aging hens, a stage when egg output, shell quality, mineral utilization, and reproductive efficiency often decline. The findings are interesting because they connect silicon with antioxidant capacity and Cu/Zn biology, areas already recognized as relevant to laying performance, but this is still an early nutrition signal rather than a practice-changing recommendation. The study appears to support further work on dose, silicon source, long-term safety, eggshell effects, and how silicon might fit with broader trace-mineral programs. (link.springer.com)
What to watch: Watch for follow-up studies that test commercial-scale use, define the optimal dose window, and compare silicon directly with established late-lay mineral and antioxidant strategies. (link.springer.com)
A new Animals study suggests dietary silicon may help support egg production in late-phase laying hens, an area of growing interest as producers look for nutritional tools that can sustain performance deeper into the laying cycle. In an 8-week experiment involving 360 hens, researchers tested five SiO2 inclusion levels and reported improved production outcomes together with changes in antioxidant capacity, reproductive hormones, and serum copper and zinc regulation. (link.springer.com)
That matters because late-phase layers are a difficult nutritional target. As hens age, laying rate, shell quality, mineral absorption, and skeletal resilience can all become harder to maintain, which has pushed more research toward targeted feed additives, trace minerals, antioxidants, and reproductive-support strategies. Recent studies in aged or late-phase hens have examined everything from organic trace elements to selenium, phytase, botanicals, and arginine-silicate-inositol complexes, reflecting a broader industry effort to extend productive longevity without sacrificing health or egg quality. (mdpi.com)
The silicon paper fits into that trend, but with a more specific mechanistic angle. According to the study abstract, hens received basal diets supplemented with 0%, 0.1%, 0.2%, 0.4%, or 0.8% silicon dioxide, with six replicates per group and 12 hens per replicate. The authors frame silicon as an essential trace element involved in multiple physiological processes and argue that its benefits may be dose-dependent. Based on the article summary and related literature, the proposed mechanism is that silicon may help maintain productive performance by improving oxidative status, influencing reproductive hormone signaling, and interacting with trace-mineral handling, especially copper and zinc. (link.springer.com)
There’s also some biologic plausibility behind the mineral angle. Separate poultry studies have linked zinc status with feed conversion, antioxidant enzyme activity, calcium transport, and laying performance, while broader late-lay trace mineral work has shown that copper, zinc, manganese, and related micronutrients can affect eggshell formation, reproductive development, and mineral uptake. A recent review of silicon in poultry nutrition also points to possible roles in skeletal health, mineral metabolism, and performance, though it emphasizes that the evidence base is still developing and that source and bioavailability matter. (pubmed.ncbi.nlm.nih.gov)
I didn’t find a separate company press release or broad industry reaction tied specifically to this paper, which suggests the study is entering the conversation mainly through the academic literature rather than through a commercial launch or regulatory event. What I did find is a wider stream of recent research exploring late-lay nutritional interventions that improve antioxidant status and reproductive outcomes, which gives this paper context but also highlights how crowded and incremental this evidence base can be. In other words, silicon isn’t emerging in a vacuum, and veterinary readers should view it alongside other feed-based approaches rather than as a stand-alone breakthrough. (pubmed.ncbi.nlm.nih.gov)
Why it matters: For veterinarians, poultry nutritionists, and technical service teams, the practical takeaway is less about immediately adding silicon and more about watching a potentially useful new lever in late-lay management. If the findings hold up, silicon could become part of a broader nutritional strategy aimed at preserving laying persistence, supporting oxidative balance, and fine-tuning trace-mineral metabolism in aging flocks. But the current evidence appears to come from a single controlled study, and the field still needs replication, source comparisons, cost-benefit analysis, tissue and egg residue considerations, and commercial-scale validation before firm recommendations would be warranted. (link.springer.com)
What to watch: The next step will be whether follow-up papers confirm which SiO2 inclusion level performs best, whether benefits extend to shell quality and bone outcomes over longer periods, and whether silicon can outperform or complement better-established late-phase interventions such as organic trace minerals, selenium strategies, phytase, or combined silicon-containing complexes. (mdpi.com)
Common questions
What did the study find about silicon dioxide in late-phase laying hens?
In an 8-week trial, dietary silicon dioxide was associated with improved production performance, with the strongest effects at moderate inclusion levels rather than the highest dose.What doses of silicon dioxide were tested?
Hens were fed diets with 0%, 0.1%, 0.2%, 0.4%, or 0.8% SiO2.What else changed besides laying performance?
The authors reported shifts in antioxidant markers, reproductive hormones, and serum copper and zinc status.Does the article say this is ready for routine use?
No. It describes the finding as an early nutrition signal and says more work is needed on dose, source, long-term safety, eggshell effects, and commercial-scale validation.