![]() ![]() The most common derivation is defects per million or DPM. Statistics for DPU and Pareto charts are derived from the basic defect per unit calculation: Calculating DPU, DPMO, PPM and related values Calculating DPU, DPMO, PPM and Related Values And for the growing community of horse owners and managers who allow their horses free choice forage feeding, Getty has set up a special forum as a place for support, celebrations, congratulations and idea sharing. ![]() Getty provides a world of useful information for the horseperson at Sign up for her informative, free monthly newsletter, Forage for Thought browse her library of reference articles search her nutrition forum and purchase recordings of her educational teleseminars. She is available for private consultations and speaking engagements. Getty, PhD, is an internationally respected, independent equine nutritionist who believes that optimizing horse health comes from understanding how the horse’s physiology and instincts determine the correct feeding and nutrition practices. ![]() Calculate to find mg: kg X ppm (or mg/kg) = mg.That gives you 0.91 mg of selenium in your 10 lbs of hay. Now you’re ready to calculate mg of selenium. ![]() Since there are 0.454 kg in one lb, make the conversion by multiplying lbs by 0.454. How many mg of selenium does 10 lbs of hay contain?įirst, you need to convert the lbs to kg. Therefore, when using mg/kg, you have to make sure you’re dealing with kg of feed (instead of lbs) in order to make your calculations.Ĭonsider this example: Let’s say your hay contains 0.2 ppm (mg/kg) of selenium. The best way to think of ppm is as milligrams per kilogram (mg/kg) of feed (since a mg is a one millionth “part” of a kg). Reading a hay analysis or puzzling over the ingredients in feed or supplements can be a chore, yet when considering particular elements-selenium, for example-some minor math can make a major difference to your horse’s health.įeed tags and hay analysis often list ingredients as “ppm” or parts per million. ![]()
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