It’s easy to interest most dogs in drinking more fluids by making sure that plain water is available at all times, adding broth and other flavor enhancers to water in an additional bowl, and adding water or broth to food. Just as important is the opportunity to urinate several times a day. Stones and crystals form in supersaturated urine, which can occur when dogs have to hold their urine for long periods.
Crystals in the Urine of Dogs | petMD
Increasing urine volume and opportunities to void urine are important factors in preventing uroliths of all types. The more a dog drinks and the more frequently he urinates, the less concentrated his urine and the less likely the formation of crystals that can become stones. Encourage your dog to drink more by adding water to his food and offering flavored water in addition to plain. For dogs with urate stones, you can add salt to food to increase thirst (start with a pinch, watch your dog’s response, and add more in small steps until your dog drinks more water), but added salt should be avoided for dogs prone to forming cystine, calcium phosphate, or silica stones.
Diet for a Dog with Struvite Crystals and Kidney Stones
All dogs affected with hyperuricosuria are potential urate stone-formers. At any time, a combination of high-purine foods, insufficient fluids, insufficient opportunities to urinate, and overly acidic urine might cause the formation of urate uroliths. Periodic routine urinalysis to check for urate crystals can be used to monitor dogs with hyperuricosuria. The most accurate sample for this purpose is collected in the morning, assuming the dog has not urinated all night, so the urine is more concentrated. The sample should be collected in a clean glass, plastic, or other chemically inert container. To avoid false crystallization, the sample should not be refrigerated and should be tested within 30 minutes or as soon as possible.
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