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IMPACT OF SULPHATE LEVELS IN SWINE DRINKING WATER ON MANURE NUTRIENTS AND EMISSIONS

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:   No Citation available.
Authors:   Bernardo Z Predicala,, John F Patience,, Erin L Cortus,, Robert Fengler,
Keywords:   Air quality, odour emissions, drinking water, manure nutrients, sulphate, swine

Abstract: The effect of poor quality water available in many swine production areas on air emissions and manure nutrient properties is largely unknown. Because drinking water can contribute significantly to the sulphur intake of pigs, and sulphur was identified as an integral component of the most odourous gases identified in swine odour, experiments were conducted to determine the impact of varying sulphate levels in drinking water on manure emissions, nutrient properties, and pig performance. Results from two completed replicate trials showed that increased levels of sulphate in drinking water tended to result in higher odour concentrations, but had no marked effect on the levels of other gases monitored (ammonia, carbon dioxide, hydrogen sulphide). Manure nutrient levels were higher in stored manure taken from rooms provided with high-sulphate drinking water. Feed intake and average daily gain of pigs were not affected by increasing water sulphate levels. These preliminary trends and observations will have to be verified after all of the five planned replicate trials are completed.

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