Abstract: Grape residue is a by-product in the wine making process,rich in nutrients such as proteins,crude fat,crude fiber,and active substances such as polyphenolic compounds,grape seed oil,oleanolic acid and dietary fiber.It has a large yield and is easy to collect.In recent years,grape residue have been widely used in livestock and poultry feed production as a natural unconventional feed raw materials and additives to alleviate China’s feed shortage problem.It can not only promote the growth and development of livestock and poultry,improve their health and product quality,but also effectively develop and utilize agricultural by-products,addressing environmental pollution and resource waste issues.However,in actual production,the large-scale production and use of grape residues as feed raw materials and additives are restricted by factors such as grape origin,varieties and feed processing technology.Sheep is one of the main economic animals in China,and in recent years,the scale of China’s sheep industry have been steadily increasing.However,with the continuous rise in prices of feed raw materials such as corn and soybean meal,the cost of sheep farming has also been increasing,making the development of unconventional feed for sheep significant.Therefore,the author systematically summarizes the nutrient content of grape residue,its special active substances and biological functions,feed utilization techniques,limitations,and its application in sheep production,providing reference for the rational development and application of grape residues in sheep feed.

Key words: grape residue; sheep; exploitation; produce