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The Hidden Danger in Animal Feed: Urea Adulteration in De oiled Rice Bran (DORB)


De oiled Rice Bran (DORB) is a popular livestock feed ingredient, prized for its affordability and nutritional value. However, a growing threat lurks in this staple: urea adulteration. Unscrupulous suppliers sometimes mix urea—a cheap nitrogen source—into DORB to artificially inflate its protein content. This practice jeopardizes animal health, farmer livelihoods, and food safety. Let’s break down how this happens, its impacts, and how to combat it.

Why Urea is Added to DORB

Urea contains high levels of nitrogen, which can misleadingly boost the apparent protein content of feed when tested. For suppliers, this means selling low-quality DORB at higher prices. But for livestock, urea is a silent killer:


Ruminants (cows, buffaloes): Their stomachs can process small amounts of urea, but excess amounts release toxic ammonia, causing tremors, bloat, or even death within hours.


Poultry: Chickens and ducks lack the digestive system to handle urea. Even small doses stunt growth, damage kidneys, and reduce egg production

Spotting Urea-Adulterated DORB

Farmers and feed buyers can take simple steps to detect urea:

  1. Smell Test: Fresh DORB has a mild, nutty odor. A strong chemical smell may indicate urea.

  2. Rapid Paper Strips: Dip a urea-detection strip (costing just a few rupees) into a DORB-water mix. If it turns blue, urea is present.

  3. Lab Testing: Send samples to labs for precise analysis. Government agencies like FSSAI enforce limits (max 1% urea in cattle feed).

Other common DORB adulterants like rice husk or sawdust can be spotted using a Foldscope—a portable microscope that reveals unnatural particles.

Economic Toll on Farmers

Urea adulteration isn’t just deadly—it’s costly:

  • Animal Deaths: Losing even one cow to poisoning can wipe out months of income.

  • Lower Productivity: Sick animals produce less milk, gain less weight, and require expensive treatments

  • Reputation Loss: Repeated issues erode trust between farmers and feed suppliers.

How to Protect Your Livestock

  1. Buy from Trusted Suppliers: Partner with mills that provide quality certifications and transparent sourcing.

  2. Test Incoming Feed: Use paper strips for quick checks. For bulk purchases, insist on lab reports.

  3. Avoid Suspicious Deals: Extremely cheap DORB often signals adulteration.

  4. Educate Others: Share knowledge about urea risks with fellow farmers and cooperatives.

The Bigger Picture

Urea adulteration thrives in regions with lax regulation and high profit motives. While India’s food safety authorities are cracking down, grassroots vigilance is equally vital. By adopting simple detection tools and demanding accountability, farmers can safeguard their animals and livelihoods.

Remember: Quality feed isn’t just about cost—it’s an investment in your livestock’s health and your farm’s future. Stay alert, test regularly, and choose integrity over shortcuts.


For more resources on feed safety, connect with local agricultural extensions or visit FSSAI’s website.


Ankit Bansal
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