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Dutch study see risks from feeding certain types of seaweed to dairy cows Wageningen University recently published a paper about transfer of bromoform present in the seaweed, Asparagopsis taxiformis, when added to the diet of dairy cattle. The results, said the team, suggests that bromoform can then end up in the milk and urine of the cow. “Bromoform inhibits the formation of methane in the cow s rumen. However, it is also toxic,” said Wouter Muizelaar, researcher at Wageningen Livestock Research. Previous research linked A. taxiformis to abnormalities in the rumen wall of sheep. “ That is why we wanted to know what effect A. taxiformis has on cows. Does bromoform end up in milk, urine, manure, or in animal tissue? What happens with it? This research shows that bromoform from A. taxiformis can end up in milk and urine.” ....
DSM flags huge reduction of methane emissions in Canadian beef cattle trial using feed additive DSM says a two-year large-scale trial in beef cattle in Alberta, Canada has successfully demonstrated that its feed additive 3-NOP, branded as Bovaer, can be included in commercial feedlot diets to reduce methane emissions by up to 80%, without negative effects on animal health and performance parameters and carcass characteristics. The trial was conducted by a Canadian Research Consortium consisting of Agriculture and Agrifood Canada, Feedlot Health Management Services, Viresco Solutions, and DSM. It was also supported by the Alberta Cattle Feeders Association while Emissions Reduction Alberta (ERA) committed US$1.5m to the US$3m project through its Methane Challenge. ....