↗ public sourceswww.abvista.com/products/econase-gt· 4 studies, 4 independent/mixed
Evidence · moderate
The active substance is backed by 4 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.
Bioavailability
Improves nutrient digestibility in barley- and oat-based pig and poultry diets.
Physiological
Reduces digesta viscosity by targeting β-glucans in barley and oats.
Performance
Improves feed efficiency and performance.
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
BioavailabilityImproves nutrient digestibility in barley- and oat-based pig and poultry diets.
Supported
1 study · 100% indep
›
Read β-glucanase raises nutrient digestibility in barley/oat diets by breaking down cell-wall β-glucan.
1998
Effect of β-glucanase supplementation on pancreatic enzyme activity and nutrient digestibility in piglets fed hulled and hulless barley dietsβ-glucanase raised nutrient digestibility in barley-fed piglets, attributed to cell-wall disruption (release of entrapped nutrients) and reduced digesta viscosity.
PhysiologicalReduces digesta viscosity by targeting β-glucans in barley and oats.
Supported
1 study · 100% indep
›
Read Reduced digesta viscosity and β-glucan depolymerisation are demonstrated in product-named broiler trials.
2021
Effects of exogenous β-glucanase on ileal soluble β-glucan molecular weight, digestive-tract characteristics and performance of coccidiosis-vaccinated broilers fed hulless-barley dietsEconase GT 200P (0.1%) lowered digesta viscosity and depolymerised soluble β-glucan (lower molecular weight) in hulless-barley diets; the viscosity drop was independent of medication.
PerformanceImproves feed efficiency and performance.
Mixed
2 studies · 100% indep
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Read Feed efficiency improved, but mainly at higher doses and in high-β-glucan barley diets; little benefit expected in corn/wheat diets.
2020
Effects of hulless barley and exogenous β-glucanase levels on ileal β-glucan molecular weight, digestive-tract characteristics and performance of broilersEconase GT 200P at 0.1% decreased ileal viscosity and improved feed efficiency; β-glucan molecular weight fell with dose, but β-glucanase did not change ileal/caecal carbohydrate fermentation.
Effect of xylanase and β-glucanase on growth performance and nutrient digestibility in piglets fed wheat–barley dietsA carbohydrase combination (xylanase + β-glucanase, 50–200 g/t) improved growth and nutrient digestibility in newly-weaned pigs on wheat–barley diets.
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
2021
Effects of exogenous β-glucanase on ileal soluble β-glucan molecular weight, digestive-tract characteristics and performance of coccidiosis-vaccinated broilers fed hulless-barley dietsEconase GT 200P (0.1%) lowered digesta viscosity and depolymerised soluble β-glucan (lower molecular weight) in hulless-barley diets; the viscosity drop was independent of medication.
Effects of hulless barley and exogenous β-glucanase levels on ileal β-glucan molecular weight, digestive-tract characteristics and performance of broilersEconase GT 200P at 0.1% decreased ileal viscosity and improved feed efficiency; β-glucan molecular weight fell with dose, but β-glucanase did not change ileal/caecal carbohydrate fermentation.
Effect of β-glucanase supplementation on pancreatic enzyme activity and nutrient digestibility in piglets fed hulled and hulless barley dietsβ-glucanase raised nutrient digestibility in barley-fed piglets, attributed to cell-wall disruption (release of entrapped nutrients) and reduced digesta viscosity.
Effect of xylanase and β-glucanase on growth performance and nutrient digestibility in piglets fed wheat–barley dietsA carbohydrase combination (xylanase + β-glucanase, 50–200 g/t) improved growth and nutrient digestibility in newly-weaned pigs on wheat–barley diets.
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Analysis & tools
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The working map a maker won’t give you — built only from the evidence on this page. Nothing here is marketing.
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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.
β-glucanase's core action — depolymerising barley/oat β-glucan and lowering digesta viscosity — is demonstrated in independent, product-named broiler trials.
Improved nutrient digestibility and feed efficiency follow, but the benefit is diet-specific (high-β-glucan barley/oats) and appeared mainly at the higher dose.
There is little to gain in low-β-glucan corn or wheat diets, where there is no substrate to act on.
No meta-analysis exists for barley β-glucanase, so a pooled effect size is not available.
The encouraging point is that the supporting broiler studies are independent and name the product.
Where studies disagree: The performance/feed-efficiency benefit is diet-dependent (high-β-glucan barley/oats) and was seen mainly at the higher dose; β-glucanase did not change hindgut fermentation in one trial. Benefits do not transfer to low-β-glucan corn or wheat diets, where there is little substrate.
Gaps: No meta-analysis for barley β-glucanase was retrieved (a narrower literature than for phytase or xylanase). Econase GT-specific magnitudes versus other commercial β-glucanases are not independently established.
Manufacturer’s stated mechanism (their words): A β-glucanase that hydrolyses the mixed-linked β-glucans that make up most of the barley/oat endosperm cell wall. Soluble β-glucans raise digesta viscosity and trap nutrients; breaking them down lowers viscosity, releases entrapped starch and protein, and improves nutrient access — specifically in barley- and oat-based diets.
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Put this beside alternatives on the same active substance (e.g. HMBi / other rumen-protected methionine), and take the data with you.
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