Sentences with phrase «kilogram in their manure»
The scientists found that pigs produce even more phosphane than cows — 103 nanograms per kilogram in their colons and 964 nanograms per kilogram in their manure.
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For instance, the concentration is lowest in the rumen of cows (2.9 nanograms per kilogram), greater in cowpats (9 nanograms per kilogram) and greater still in manure (14 nanograms per kilogram).