Study links moringa and xylanase to better broiler efficiency
Bottom line
A new Frontiers in Veterinary Science study suggests that pairing Moringa oleifera leaf powder with xylanase may improve broiler performance more than either additive alone. In the 42-day trial, researchers fed 160 Cobb broiler chicks one of four diets in a 2×2 design: control, moringa leaf powder alone at 4 g/kg, xylanase alone at 1.5 g/kg, or the combination. Birds on the combined diet had higher final body weight and body weight gain, plus a lower feed conversion ratio than controls. The study also found lower cecal E. coli counts across supplemented groups, while moringa alone increased Lactobacillus counts. The paper was published in 2026 in Frontiers’ Animal Nutrition and Metabolism section. (frontiersin.org)
Why it matters: For poultry veterinarians and technical teams, the findings add to a growing body of work around phytogenic additives and feed enzymes as tools to support performance and gut health while reducing reliance on conventional growth-promoting inputs. Broiler feed remains the industry’s largest cost center, and broader poultry nutrition guidance already positions carbohydrase enzymes such as xylanase as practical tools for improving the use of higher-fiber, plant-based ingredients. Reviews of moringa in poultry nutrition also describe it as a promising, locally available additive, though they note that results can vary by inclusion rate and diet formulation. (frontiersin.org)
What to watch: The next question is whether these results hold up in larger commercial flocks, across different feed formulations, and with cost-benefit data that can guide real-world adoption. (frontiersin.org)
A newly published broiler nutrition study is putting fresh attention on a familiar idea in poultry production: combining plant-based feed additives with enzymes rather than using either one alone. In Frontiers in Veterinary Science, researchers reported that broilers fed both Moringa oleifera leaf powder and xylanase posted better growth and feed efficiency than birds on a control diet, while supplemented groups also showed lower cecal E. coli counts. (frontiersin.org)
The study lands as poultry producers continue to look for nutritional strategies that support performance, gut health, and sustainability at the same time. Interest in moringa has been building for several years because of its protein content, phytochemicals, and availability in some regions as a non-conventional feed ingredient. Separate reviews and meta-analytic work have described moringa as a promising poultry additive, but they also stress that outcomes depend on dose, processing, and the rest of the diet. (pmc.ncbi.nlm.nih.gov)
In the new trial, the investigators assigned 160 one-day-old Cobb broilers to four dietary treatments in a 2×2 factorial design with or without moringa leaf powder at 4 g/kg and with or without xylanase at 1.5 g/kg. The feeding period lasted 42 days, with five replicate pens of eight birds per treatment. According to the abstract, the combined supplementation group delivered the strongest performance signal, with greater final body weight and body weight gain, plus lower feed conversion ratio than controls. Feed intake fell with moringa supplementation, especially during the grower and overall periods. (frontiersin.org)
The paper also reported physiological and microbiological effects that may matter to field veterinarians and nutritionists. Moringa supplementation reduced serum glucose concentration, moringa alone reduced total lipid concentration, and xylanase affected thyroid hormone concentrations. Relative liver weight was lower in xylanase-supplemented birds, while dressing percentage and most other organ weights were unchanged. On the cecal side, moringa alone increased Lactobacillus, and all supplemented treatments reduced E. coli compared with controls. The authors said the combination produced the most favorable overall growth and feed-efficiency outcome among the tested diets. (frontiersin.org)
The broader industry context helps explain why this combination is drawing interest. Recent reviews on enzyme-assisted feed strategies describe xylanase and related enzymes as practical tools for improving nutrient access in higher-fiber diets and supporting more efficient use of alternative ingredients. Commercial broiler nutrition guidance also notes that NSP-degrading enzymes can help expand the use of fibrous plant materials in feed programs. That makes the moringa-xylanase pairing notable not just as a gut-health story, but as part of a larger push to make feed formulation more flexible under cost and sustainability pressure. (pubmed.ncbi.nlm.nih.gov)
There does not appear to be a separate institutional press release or major industry response tied specifically to this paper yet, based on available search results. Still, trade and review coverage around moringa in poultry has framed the ingredient as a possible fit for antibiotic-free and sustainability-focused production systems, while emphasizing that evidence remains uneven and operational details matter. That’s consistent with this study’s own caution that further work is needed to clarify the biological mechanisms behind the observed responses. (thepoultrysite.com)
Why it matters: For veterinary professionals working with broiler operations, this study is less about a single additive and more about the direction of travel in feed strategy. If plant-derived additives such as moringa can be paired effectively with enzymes to improve feed conversion and shift gut bacterial populations in a favorable direction, that could support flock performance while fitting with reduced-antibiotic and sustainability goals. But the evidence here is still early-stage and comes from a relatively small controlled trial, so it’s not yet a plug-and-play recommendation for commercial programs. Inclusion rate, ingredient quality, enzyme stability in feed processing, local economics, and flock health status will all shape whether the approach translates outside the research setting. (frontiersin.org)
What to watch: Watch for full-text publication details beyond the current abstract page, replication in larger commercial broiler studies, and any follow-on work testing carcass yield, economics, and microbiome effects under practical production conditions. (frontiersin.org)
Common questions
What did the study find about combining moringa leaf powder and xylanase in broilers?
Broilers fed the combination had higher final body weight and body weight gain, and a lower feed conversion ratio, than controls.What doses were used in the trial?
Moringa leaf powder was fed at 4 g/kg, and xylanase at 1.5 g/kg.Did the supplements affect gut bacteria?
Yes. All supplemented groups had lower cecal E. coli counts than controls, and moringa alone increased Lactobacillus counts.How long was the feeding trial?
The trial lasted 42 days.