Fermented ginseng by-products draw attention in rooster nutrition study

Version 2

A newly published study in Veterinary Sciences examined whether fermented ginseng by-products can improve growth performance, meat quality, flavor, and fatty acid metabolism in Hongyu roosters, a Chinese poultry breed valued for meat production. The paper fits squarely into a broader push to turn agricultural and herbal-processing residues into higher-value feed inputs, particularly as producers look for alternatives that may support performance while reducing waste streams. (sciencedirect.com)

That backdrop matters. Across animal agriculture, researchers have been testing whether herbal by-products, fermentation products, and other nontraditional feed ingredients can do more than simply replace part of a ration. In poultry, prior studies on red ginseng marc or by-products have reported effects on egg production, serum markers, mortality, antioxidant activity, and some meat-quality traits. A 2017 review, however, cautioned that the evidence base for ginseng in animal production has been mixed, in part because herbal source material and processing methods differ substantially between studies. (pubmed.ncbi.nlm.nih.gov)

In the new rooster study, the authors evaluated fermented ginseng by-products as a dietary supplement and tracked outcomes tied to production and carcass value, including flavor characteristics and fatty acid metabolism. While the source summary indicates positive effects across growth and quality measures, the broader literature suggests the mechanism is likely multifactorial, potentially involving antioxidant effects, shifts in lipid metabolism, and changes in the gut microbial environment after fermentation. Comparable recent poultry work has linked fermented or ginseng-derived feed ingredients with improved intestinal health, antioxidant capacity, and microbiota balance, as well as selective improvements in meat quality. (sciencedirect.com)

Industry and academic interest in this area appears to be growing. Veterinary Sciences is currently highlighting sustainable feed additives for poultry health and disease control as an active topic area, reflecting wider interest in phytogenics, probiotics, prebiotics, and bioactive plant extracts. More recent poultry studies have also continued to test fermented ginseng by-products in commercial-type settings, including work in late-laying hens that linked supplementation to eggshell quality, production performance, immune function, liver health, and intestinal microbiota. (mdpi.com)

Even so, the practical case isn’t settled. Earlier broiler work found that red ginseng marc improved some meat-quality and health-associated measures, but not every core production metric changed. That’s consistent with the larger pattern in phytogenic feed research: promising signals, but uneven translation across breeds, ages, endpoints, and inclusion rates. For veterinary professionals advising producers, that means the headline result is less “ginseng works” than “processing method, dose, animal type, and target outcome probably matter a lot.” (pubmed.ncbi.nlm.nih.gov)

Why it matters: This study is most relevant for veterinarians, nutritionists, and poultry integrators evaluating feed strategies that may improve both biological performance and downstream product quality. If fermented ginseng by-products can reliably influence growth, flavor, and fatty acid profiles, they could offer a dual value proposition: better utilization of agro-industrial residues and a potentially differentiated poultry product. But before recommending broad uptake, professionals will want more detail on formulation consistency, safety, residue handling, regulatory fit in target markets, and cost per unit of gain or quality improvement. (sciencedirect.com)

What to watch: The next step is validation, ideally through larger commercial trials, clearer dose-response work, and mechanistic studies that explain whether benefits are driven mainly by fermentation, residual ginsenosides, microbiome effects, or lipid-metabolism changes. Watch, too, for whether similar findings emerge in broilers, layers, and other livestock, because that will determine whether fermented ginseng by-products remain a niche research ingredient or move closer to routine use in animal nutrition. (sciencedirect.com)