Sweet chestnut tannins in animal diets

Tannins are widely found in plant material and can have diverse effects on animals that consume them. In this short review we discuss a few studies that looked into the effects on zootechnical results when this plant material was incorporated into the diet. By Emmy Koeleman   Tannins, water-soluble polyphenolic compounds, are the plant’s first line of defence in numerous feeds, such as rape and their by-products, legume seeds, sunflower seeds and sorghum. The term tannin (from tanna