970×90 — direct-sold creative, or a responsive Google AdSense unit when unsold
Zootechnical additives · chickens for fattening, chickens reared for laying, laying hens, turkeys, weaned piglets, pigs for fattening, minor poultry species
Econase XT
Brand Econase XT · Manufacturer AB Vista (AB Agri Ltd); enzyme produced with Trichoderma reesei by AB Enzymes / Roal Oy (Finland)
↗ public sourceswww.abvista.com/products/econase-xt· 3 studies, 1 independent/mixed
Evidence · moderate
The active substance is backed by 3 studies including meta-analyses; the verdict per claim below reflects what the literature actually shows, not the brochure. Strength reflects the active substance, not the brand.
What the manufacturer claims
Free
Captured from the product page, typed and attributed — the producer’s own statements, checked against the literature below.
Performance
Breaks down dietary fibre (arabinoxylans/NSP) to maximise energy utilisation and improve performance
Bioavailability
Reduces digesta viscosity and improves nutrient and energy digestibility
Stability
Highly thermostable, surviving pelleting and a broad range of premixes
Manufacturer’s own words — not independently verified. The ledger below gives the evidence verdict for each.
Claim ↔ evidence ledger
Verdict free · receipts in Power
Each claim against the studies on the active substance, with the funding split. Open a row for the studies behind the verdict.
Claim
Verdict
Evidence & funding
PerformanceBreaks down dietary fibre (arabinoxylans/NSP) to maximise energy utilisation and imp…
Mixed
2 studies · 50% indep
›
Read Independent meta-analysis supports the energy/performance claim; magnitude is diet-dependent.
2022
Effects of Xylanase Supplementation on the Performance, Nutrient Digestibility, and Digestive Organ Profiles of Broiler Chickens: A Meta-analysisXylanase increased body weight gain and reduced feed intake and FCR; improved DM, CP, Ca, P, starch and gross-energy digestibility (53 articles, 140 data points)
Evaluation of the effect of different wheats and xylanase supplementation on performance, nutrient and energy utilisation in broiler chicksXylanase improved FCR and apparent metabolisable energy, with the largest response in higher-viscosity wheats
BioavailabilityReduces digesta viscosity and improves nutrient and energy digestibility
Supported
1 study · 0% indep
›
2022
Effects of supplemental xylanase and xylo-oligosaccharides on production performance and gut-health variables of broiler chickens (uses Econase XT)0.005-0.01% Econase XT linearly increased average daily gain and final body weight gain (P<0.01)
StabilityHighly thermostable, surviving pelleting and a broad range of premixes
Not addressed
no study
›
Thermostability is a physico-chemical/manufacturing claim not tested in the animal trials captured here.
IndependentMixedIndustryNone/undisclosed
Bottom line. An independent broiler meta-analysis shows xylanase improves weight gain, FCR and nutrient/energy digestibility, supporting the core energy claim.
Sponsored
728×90 — direct-sold creative, or a responsive Google AdSense unit when unsold
Evidence — on the active substance
Table free · full-text in Power
Why these studies The evidence for a proprietary product is the evidence for its active substance. These are the studies (meta-analyses first) behind the verdicts above, with funding labelled.
Year
Study & effect size
Funding
Type
Access
2022
Effects of Xylanase Supplementation on the Performance, Nutrient Digestibility, and Digestive Organ Profiles of Broiler Chickens: A Meta-analysisXylanase increased body weight gain and reduced feed intake and FCR; improved DM, CP, Ca, P, starch and gross-energy digestibility (53 articles, 140 data points)
Effects of supplemental xylanase and xylo-oligosaccharides on production performance and gut-health variables of broiler chickens (uses Econase XT)0.005-0.01% Econase XT linearly increased average daily gain and final body weight gain (P<0.01)
Evaluation of the effect of different wheats and xylanase supplementation on performance, nutrient and energy utilisation in broiler chicksXylanase improved FCR and apparent metabolisable energy, with the largest response in higher-viscosity wheats
728×90 — direct-sold creative, or a responsive Google AdSense unit when unsold
Analysis & tools
◆ Power
The working map a maker won’t give you — built only from the evidence on this page. Nothing here is marketing.
◆ Power view
Open the analyst workbench
Dose benchmark, the independent-vs-sponsored split, the pooled meta-analysis effects, the contradictions and the gaps — all derived from the studies above.
Dose: label vs effective trial range vs EU max
Independence-of-evidence breakdown
Pooled meta-analysis effect sizes
Compare · CSV / JSON · API
Dose benchmark
Label / recommended~16,000 BXU/kg (poultry); up to 24,000 BXU/kg (pigs)
Effective in trials8,000-24,000 BXU/kg in trials
EU maximum16,000 BXU/kg (poultry); 24,000 BXU/kg (pigs)
Recommended use level equals the EU-authorised maximum.
Pooled estimates from the systematic reviews/meta-analyses above — the closest thing to a settled answer.
Discussion — grounded in the evidence
An independent broiler meta-analysis shows xylanase improves weight gain, FCR and nutrient/energy digestibility, supporting the core energy claim.
EFSA assessed the enzyme as safe and authorised it for poultry and pigs, with recommended doses equal to the EU maxima.
The size of the benefit depends on diet: it is largest in viscous, high-arabinoxylan cereals and small or absent in low-fibre maize diets.
Thermostability claims are plausible but were not tested in the captured efficacy trials.
Most efficacy evidence is at the substance (xylanase) level rather than head-to-head against rival xylanases.
Where studies disagree: Energy and performance responses are larger in viscous wheat/rye/barley diets than in low-NSP maize-soy diets, and several individual trials report no significant effect.
Gaps: Thermostability/pelleting-survival claims are not addressed by the animal trials captured. Independent matched comparisons against other commercial xylanases at equal BXU are limited.
Manufacturer’s stated mechanism (their words): Hydrolyses the beta-1,4 backbone of arabinoxylans in cereal cell walls, lowering digesta viscosity, releasing nutrients encapsulated by fibre, and generating fermentable xylo-oligosaccharides, raising usable energy.
Compare & export
Put this beside alternatives on the same active substance (e.g. HMBi / other rumen-protected methionine), and take the data with you.
Sponsored
970×90 — direct-sold creative, or a responsive Google AdSense unit when unsold