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对硒——维生素戍治疗有反应的家畜营养缺乏问题遍布于加拿大大西洋侧的一些省份。畜牧工作者及兽医报导,在各种农畜中均存在这些问题。一个较早的对爱德华太子岛(Prince Edward Island)调查指出,该省生长的饲料及谷物普遍缺硒。在同一调
The problem of malnutrition in livestock that responds to selenium-vitamin supplements is found in some provinces on the Atlantic side of Canada. Livestock workers and veterinarians report that these problems exist in all kinds of farm animals. An earlier survey of Prince Edward Island said selenium was generally deficient in feed and grains grown in the province. In the same tune