Review on utilization of Brewery by-products as protein-rich feed source for efficient livestock production

Utilization of locally available industrial by-products in livestock feed is very important methods to enhance livestock productivity and minimize feed cost. The objective of this paper is to review the utilization of brewery by-product as a protein source feed for efficient animal production. Brewer’s by-products like brewers spent grain and brewers spent yeast are the major by-products produced by the brewing factory. They are produced all year round with the same volume and with simple cost and used as animal feed. These materials provide animals with high-quality protein (about 35% CP) and can improve feed quality and animal production. It can replace high-quality protein source feed such as soybean. The optimum contents of fibre and protein in brewer’s by-product together with the low cost of this by- product make it a substrate of great interest for use as livestock feed. Quality apprehension is the major things need attention when those by-products are given for animals since brewer’s grains are susceptible to bacterial and fungal contamination (mycotoxins) and care should be taken to feed only unspoilt brewers grains.