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www.benisonmedia.com R&D Think Grain Think Feed - Volume 11 | Issue 7 | May 2025 Feed Tech

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Animal Feed Technology
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FEED EXPOSITION

Onion Peel Feed Additive Reduces EXHIBITION | CONFERENCE | WORKSHOP

Methane in Dairy Cows 31 OCTOBER, 1 & 2 NOVEMBER

2025 Auto Cluster Exhibition Center, Pune
A recent study published in Key Findings Conclusion and
Animals evaluated onion The HC diet produced more Recommendations
peel, a by-product of onion total gas but lower CH₄, CO₂, The study concludes that www.feedtechexpo.com
processing, as a natural feed NH₃, and H₂S than the HF onion peel is more effective
additive for dairy cows. diet. Adding onion peel to in HF diets, where 5%
Results suggest it may the HF diet increased gas inclusion appears optimal for
improve nutrient emissions at all levels, reducing ruminal methane
degradability and reduce though the OP5 treatment and enhancing nutrient
methane emissions, showed the lowest CH₄ degradability. While onion
particularly in high-forage production in the HF diet. In peel had mixed effects on
(HF) diets. contrast, the OP7.5 HC diets, its benefits in HF
Study Design and Diets treatment in the HC diet diets support its use as a
Researchers examined the resulted in the highest gas natural strategy to improve
effects of including onion and CH₄ production. fermentation efficiency and
peel at 2.5% (OP2.5), 5% Degradable dry matter was reduce environmental
(OP5), 7.5% (OP7.5), and 10% highest with OP7.5 in the HC impact.
(OP10) in two diets: a high- diet, while the lowest was Call for Further Research Organizer Official Magazine Scan here to exhibit
concentrate total mixed seen with OP2.5. Onion peel Though promising, the exact
ration (HC) and a high- also linearly increased optimal inclusion level
forage corn silage diet (HF). degradable acid detergent remains unclear. Further in
They measured gas fibre in both diets. The OP5 vitro and in vivo research is
production, including treatment reduced total needed to confirm long-term
methane (CH₄), carbon volatile fatty acids (VFA) and effects, understand
dioxide (CO₂), ammonia acetate levels in the HC diet, mechanisms of action, and
(NH₃), and hydrogen sulfide with OP5–OP10 showing assess practical applications
(H₂S), along with nutrient lower VFA concentrations in real-world dairy farming. BENISON Media
degradability. overall. SCO-17, 2nd Floor, Mugal Canal, Karnal-132001, Haryana
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