Validation of a rapid urinary iodide test in the goat: a preliminary study

A rapid urinary iodide test was assessed in goats to validate its effectiveness in field conditions. The test provides a semiquantitative assessment of the iodine intake and could be valuable for animal population. Two hundred and forty-six dairy goats were randomized selected for this study. According to iodide content in urine, results were classified in three groups (<10 μg/dL, 10-30 μg/dL, >30 μg/dL). These findings were in agreement with spectrophotometrical determinations and with serum iodine values. Sensibility and specificity were 89% and 78%, respectively. Data on reproducibility and interfering substances were also valuable. Given the technical simplicity, cost-effectiveness and its stability in heat environmental conditions, the rapid urinary iodide test should be considered as a valuable method for epidemiological surveys in field conditions or in development countries.