Isoflavones in Animals: Metabolism and Effects in Livestock and Occurrence in Feed

作者：Dino Grgic, Elisabeth Varga, Barbara Novak, Anneliese Müller, Doris Marko · 发表于：Toxins · 年份：2021 · DOI：10.3390/toxins13120836 · 被引用次数：44 · 研究领域：Phytoestrogen effects and research、Mycotoxins in Agriculture and Food、Ruminant Nutrition and Digestive Physiology

Soybeans are a common ingredient of animal feed. They contain isoflavones, which are known to act as phytoestrogens in animals. Isoflavones were described to have beneficial effects on farm animals. However, there are also reports of negative outcomes after the consumption of isoflavones. This review summarizes the current knowledge of metabolization of isoflavones (including the influence of the microbiome, phase I and phase II metabolism), as well as the distribution of isoflavones and their metabolites in tissues. Furthermore, published studies on effects of isoflavones in livestock species (pigs, poultry, ruminants, fish) are reviewed. Moreover, published studies on occurrence of isoflavones in feed materials and co-occurrence with zearalenone are presented and are supplemented with our own survey data.