AGENT FOR INSTANT DIAGNOSIS OF FELINE UROLITHIASIS AND METHOD OF ITS PRODUCTION Russian patent published in 2011 - IPC G01N33/493 G01N33/487 A01K1/15 

FIELD: veterinary science.

SUBSTANCE: agent is represented by indicator granules, containing a base and a dry indicator mixture, the liquid indicator mixture, containing the following components, wt %, is applied onto the base: distilled water - 50-89.9; a water-soluble polymer - 10-49.9; a water-soluble pH level indicator - 0.01-0.1. Besides, the base is represented by light spheroidal granules with high porosity from fractionated swollen vermiculite, or from swollen chlorite, or perlite, or volcanic glass. Besides, after the liquid indicator mixture is applied onto the base, the agent is dried until the ratio of the indicator mixture to the base is in the range of values making 0.01-0.04. The water-soluble polymer is represented by a polyvinyl acetate, and the water-soluble pH level indicator is phenol red (phenolsulfonphthalein) or cresol red (o-cresolsulfonphthalein). A solution of the liquid indicator mixture of the above-specified composition is prepared, applied onto the base of light spheroidal granules with high porosity from swollen fractionated vermiculite, or swollen chlorite perlite, or perlite, or volcanic glass by means of spraying through a nozzle with a rate of 100-200 ml/min, at the temperature of sprayed solution of 20-40°C, and granules are dried to moisture of 1-5% at the temperature from +40 to +250°C for 5-30 minutes until the ratio of the dry indicator mixture to the base is in the range of values making 0.01-0.04.

EFFECT: increased contrast of agent colouring after feline urine ingress on it.

4 cl