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- Title
Effects of two calculolytic diets on parameters of feline mineral metabolism.
- Authors
Pineda, C.; Aguilera‐Tejero, E.; Raya, A. I.; Montes de Oca, A.; Rodriguez, M.; Lopez, I.
- Abstract
OBJECTIVES To evaluate the influence of two feline calculolytic diets on selected parameters of mineral metabolism. MATERIALS AND METHODS Two dry commercial diets designed for struvite urolith dissolution were evaluated in 14 cats. The study was designed as a two-sequence, four-period crossover protocol with a baseline period, two 60-day 'run-in' periods in which calculolytic diets (Diet 1 and Diet 2) were fed and one 30-day 'wash-out' period. Data are expressed as median (range). RESULTS Feeding the calculolytic diets for two months did not alter plasma concentrations of calcium, phosphorus, magnesium and parathyroid hormone. A significant (P < 0.05 in each case) decline in calcitriol was observed after administering both diets from 236.4 (122.4-429.6) to 170.4 (108.0-394.3) pmol/L (Diet 1) and from 278.4 (153.6-492.0) to 177.1 (87.6-392.4) pmol/L (Diet 2). Cats fed Diet 1 showed a significant increase in urine calcium concentration (from 0.3 (0.2-0.5) to 0.4 (0.3-0.7) mmol/L). Magnesium concentration in urine was significantly increased with both diets, from 1.4 (0.1-1.7) to 1.5 (1.3-2.4) mmol/L (Diet 1) and from 1.1 (0.4-1.9) to 2.0 (0.1-3.1) mmol/L (Diet 2). CLINICAL SIGNIFICANCE Both diets resulted in an increased urinary concentration of magnesium, through different mechanisms: urine acidification (Diet 1) and increased sodium load (Diet 2).
- Publication
Journal of Small Animal Practice, 2015, Vol 56, Issue 8, p499
- ISSN
0022-4510
- Publication type
Article
- DOI
10.1111/jsap.12368