1,3-Oxazolidine-2-thione, a free oxazolidinethione, increases thyroid size and severely depresses hepatic trimethylamine oxidase activity in the brown-egg layers[1].
[1]. Goh, Y. K., et al. Influence of glucosinolates and free oxazolidinethione in a laying diet containing a constant amount of sinapine on the thyroid size and hepatic trimethylamine oxidase activity of brown-egg layers. Canadian Journal of Animal Science. 19
















