Sonia Elijah
In a pivotal shift, Denmark’s Veterinary and Food Administration has issued new guidance: Farmers can immediately suspend Bovaer administration if they “suspect” it poses risks to herd health. On the heels of the Danish announcement—the major UK trial of Bovaer on 30 Arla Foods farms has abruptly ended amid health fears.
The Mandate Cracks: Farmers Given the Green Light to Opt Out
On November 5, 2025, Denmark’s Fødevarestyrelsen (Danish Veterinary and Food Administration) issued a press release and accompanying guidance clarified that farmers (specifically the herd manager, or besætningsansvarlige) could immediately exempt individual cows or entire herds from the mandatory Bovaer use if they suspected it was causing or exacerbating health issues, prioritizing animal welfare under existing regulations.
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This was in response to surging reports of cow illnesses since October 1, where farms with over 50 cows have been mandated to use the synthetic additive, Bovaer (containing 3-nitrooxypropanol), developed by DSM-Firmenich. If the farms do not comply, they face heavy fines.
Bovaer Backlash: Danish Cows Collapsing Under Mandatory Methane-Reducing Additive
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| Article updated: November 4 |
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The guidance emphasized that exemptions apply to cases of feed-related metabolic disorders (e.g., fatty liver, milk fever, or rumen issues) and require documentation via a “tro- og loveerklæring” (declaration of good faith) on LandbrugsInfo, with veterinary consultation recommended for severe cases. No fines would apply for such welfare-based pauses, though farmers must still meet methane reduction goals via alternatives like increased feed fat. This effectively gave the “green light” for opting out on welfare grounds.
Reports surged of Danish dairy farmers unilaterally halting Bovaer administration, accusing the government of “poisoning” livestock to meet climate targets.
A November 3, 2025, article in LandbrugsAvisen (Denmark’s leading agricultural newspaper), quoted veterinarian Torben Bennedsgaard from BoviCura (a specialized cattle health advisory service closely tied to Danish dairy producers). He stated: “Every other farmer has problems with Bovaer.”
“Bovaer is a proven, effective and safe solution”
A spokesperson for DSM-Firmenich, the company that developed Bovaer, told Agriland, that “animal welfare is our highest priority”. They went on to state: “We are actively engaging with the relevant organisations to ensure that all these concerns are fully investigated and properly addressed..In previously reported cases, Bovaer was not identified as a contributing factor to the health concerns raised…Bovaer is a proven, effective and safe solution that has been successfully used for over three years by thousands of farmers in over 25 countries.”
UK Ripple Effects: Arla Trial Abruptly Halted
On 7 November, the BBC reported that the major UK trial of Bovaer on 30 Arla Foods farms concluded earlier than planned amid “farmer health concerns” for cows, echoing Danish reports. It stated: ‘Bovaer is now the focus of an investigation in Denmark after farmers raised fresh concerns but manufacturer DSM-Firmenich said the additive was “proven, effective and safe.”’
Arla, which supplies major retailers like Tesco and Aldi, is now reviewing data before deciding on wider rollout. The trial aimed to cut methane by 30% but faced criticism for lacking transparency on animal impact.
Jannik Elmegaard, of the Danish Food and Veterinary Administration, told the BBC: “They very aware that some herd owners have reported animals showing signs of illness after being fed with Bovaer” but it was “unclear how many cows were affected”.
Last year, I reported on the UK’s Arla trial—whilst digging through various safety assessment reports on Bovaer, I came across several troubling findings and anomalies.
BREAKING: Methane-Reducing Feed Additive Trialled in Arla Dairy Farms
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| On November 26th, Arla Foods Ltd. announced via social media their collaboration with major UK supermarkets like Tesco, Aldi, and Morrisons to trial Bovaer, a feed additive, aiming to reduce methane … |
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In a public rebuttal, Frank Mitloehner, Professor of Animal Science at UC Davis and Director of the Clarify Center for Enteric Fermentation Research, posted on X ”Hogwash!”—dismissing viral claims of Bovaer-related cow health issues in Denmark by highlighting his lab’s ongoing research and widespread U.S. usage data.
The green light in Denmark is not a mere victory—it’s a damning admission that the emperor’s new feed has holes big enough for a whole herd to escape through.
As Arla licks its wounds and DSM-Firmenich doubles down on “proven safe,” the real trial begins: can climate crusaders stomach the science when it bites back?
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