Authors : Virginia Mosca , William P?rez , Sergio Gigena and Lilian Sierra
Abstract: There are very few cases of poisoning in bovines associated to high levels of nitrates in grazing fields in Uruguay and the lack of information is very notorious. For this essay, determined levels of nitrates were studied in eight samples of oats during the winter in three different areas of the country. The aim was firstly to investigate if any of the samples showed toxic levels, secondly, to compare them and thirdly, to study if there is any significant difference between them. The quantification of nitrates was done by the method of reduction of hydrazine sulphate. As known, the amounts of nitrates in grazing fields change according to the vegetative cycle. An investigation was carried out to study if there were variations in the levels of nitrates in oats in each season in the area of San Jos?. All the results obtained indicate the innocuousness of oats in samples studied. The values were significantly less during the spring.
Virginia Mosca , William P?rez , Sergio Gigena and Lilian Sierra , 2005. Quantitative Determination of Nitrates in Oats . Journal of Animal and Veterinary Advances, 4: 913-915.