Supplementation of cows grazing rangelands is often beneficial to overcome nutrient deficiencies or imbalances. However, supplemental feeds and their delivery to the cow herd are expenses and thus supplementation decisions should be carefully made to ensure that costs are minimized and benefits in terms of cow performance exceed supplementation costs. When supplementing cows, there are question...

Abstract In ruminant diets, rumen undegradable starch (RUS) contributes to maintaining health by maximizing post-ruminal absorption. This present study aimed estimate dietary RUS values from their chemical composition. The database was developed some literature search engines and obtained 41 studies 17 references. composition of ash, dry matter (DM), neutral detergent fiber (NDF), acid lignin (...