SÃO PAULO, April 22, 2026 /PRNewswire/ — Minerva Foods, a global food company and South America’s leading beef exporter, and Rumin8, an Australian climate technology company developing feed additives to reduce livestock methane emissions, today announced the results of a study demonstrating significant reductions in methane emissions from cattle alongside improved feed efficiency.
The research was conducted in partnership with the University of São Paulo through the Luiz de Queiroz College of Agriculture (ESALQ/USP), one of Brazil’s leading agricultural research institutions.
The 120-day study evaluated the impact of Rumin8’s feed additive on enteric methane emissions and productive performance in Nellore cattle under conditions simulating commercial Brazilian feedlot operations. Animals receiving the additive in a total mixed ration (TMR) showed a 50.4% reduction in methane emissions and a statistically significant 5% improvement in feed conversion efficiency compared with cattle fed the same diet without the additive.
The fairy tale of excess methane (and carbon dioxide) causing harm to the environment has been a battering ram for Greens against grass feeding cattle and methane emissions. Numerous studies have found methane is not dangerous to the climate, mankind or anything else. The entire United Nations carbon dioxide/methane scare campaign has fuelled a massive industry called renewables.
Multinational pharma companies, governments and food giants refuse to accept that thousands of years of natural development of digestive systems in ruminants cannot be altered without causing a health problem for the animal or to consumers who eat the chemically-infused meat.
Due to fear-based propaganda levelled at the cattle industry in this “climate crisis”, the farmers lately seem to be forced to attention this relatively minor source of methane production. The farmers are faced with administering chemicals to disrupt normal digestive processes which produce methane in the cattle in the form of a feed additive Bovaer-10, or a vaccine, Rumin8. It is an industry that has lost sight of the fact we consume such animals and an optimal animal metabolic health is essential to us for our health after consumption.
So imagine yourself as a cow for a moment. Your digestive system has evolved over millions of years to process grass – fresh, living grass full of nutrients and natural compounds that your body knows exactly how to handle. Your multiple stomachs work together in perfect harmony to break down this fibrous material, extract nutrients, and maintain your health. Furthermore, you’re free to move (wander freely) to more fresh grass ahead. This is the natural way, the way cattle have eaten for thousands of years.
Now imagine, for the last 80 years and with the advent of industrial agriculture, being suddenly switched to a diet of processed foods and mostly dead grass – the cattle equivalent of going from a lifetime of home-cooked meals to surviving solely on fast food. Furthermore, being limited to a confined space with hundreds of other cows.
This is essentially what happens in modern feedlots during the “finishing” period, where cattle’s diets shift dramatically to contain up to 80% grains and oilseeds like cottonseed. It’s comparable to how your own digestive system might revolt when you drastically change your diet while traveling abroad, except these cattle don’t get to return to their normal diet after a few weeks.
Coles Bovaer ruminant feed additive
https://cairnsnews.org/2025/01/18/coles-bovaer-anti-methane-cattle-feed-additive-is-toxic-to-humans/
Rumin8 CEO David Messina said the collaboration represents an important step toward scaling methane-reducing technologies in one of the world’s largest cattle markets.
“We were pleased to partner with Minerva and ESALQ/USP to assess Rumin8’s ability to mitigate methane and its impact on animal performance in an environment that simulates a commercial Brazilian feedlot setting.”
“Minerva and Rumin8 are both committed to reducing methane emissions from the agriculture and food sector, and it was excellent to have this work validated by one of Brazil’s most respected academic institutions. The results of this study were significant and will form part of our data package as we move toward commercialization in Brazil, home to the world’s largest commercial cattle herd.”
The study also found that methane intensity per kilogram of liveweight gain decreased from 77.2 g/kg to 39.6 g/kg when comparing cattle fed only a TMR with those receiving the additive.
In total, the trial achieved an estimated reduction of 29.8 tonnes of CO₂ equivalent in greenhouse gas emissions, while also delivering productivity gains and lower feed consumption. Independent verification of these results is currently underway by companies specializing in agricultural carbon certification, including Athian and FoodChain ID.
Australia’s largest meat packer, JBS Swift has been using the additive Bovaer in all of its feedlots to prevent ethane emissions in cattle. Coles and Woolworths are among the largest retailers of JBS beef.
There is no Australian legislative requirement to use this allegedly toxic additive.
