Flatulent cows could be curtailed by fish oils

The benefits to humans of omega 3 fatty acids in fish oils are well documented, but a new study has found that fish oils can have a wider benefit to the environment — by reducing the amount of methane produced by cows. The report produced by University College Dublin found that by including two percent fish oil in the diet of cattle they achieved a reduction in the amount of methane released by the animals. Lowering methane emissions is important for the environment, as the gas given off by farm animals is a major contributor to greenhouse gas levels

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