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Testing ground and surface water sources can help determine if there are contaminants present that can affect animal health and production. In Saskatchewan, common contaminants include sulfate, sodium, nitrate, and iron. Stagnant surface water sources that experience nutrient-loading may be susceptible to blue-green algae, which can produce toxins that are unsafe for livestock.
Water is one of the most important nutrients for livestock, which is why quality is important to manage effectively in water sources. As temperatures rise, livestock consume more water, which can exacerbate issues if the water contains high levels of dissolved minerals. Laboratory testing is the most accurate way to identify impurities in water sources. Knowing the acceptable levels of total dissolved solids can help ensure that water sources are safe for livestock consumption.
During dry conditions, it is recommended to closely monitor surface water sources, as increased evaporation can impair water quality. If the level of dissolved solids in a dugout reaches the poor to unsuitable range, it may be necessary to either dilute the water or switch to a different water source. Supplementing with chelated minerals can help to reduce the effects of poor quality water by improving mineral absorption by livestock. Long-term considerations may include water treatment and development options.
The Ministry of Agriculture’s Livestock and Feed Extension Specialists are working to make water testing more accessible to livestock producers in Saskatchewan. Livestock producers can submit 1L water samples for testing, free of charge, to participating locations. The regional specialist will follow up with water test results and help with interpretation.
For additional information on drop-off locations please visit the Agriculture Events Calendar on our website at saskatchewan.ca. You may also submit samples anytime at a Ministry of Agriculture regional office or at participating Saskatchewan Crop Insurance Corporation offices.
Corissa Wilcox , Livestock and Feed Extension Specialist with the Saskatchewan Ministry of Agriculture, out of the regional office in Swift Current, Saskatchewan.