The main problem with poultry farmer is the cost of feed which is given to the birds. The cost of feed is about 70% of the total cost. The bird cannot produce the enzymes that are able to digest the polysaccharides present in feeds. These polysaccharides are very rich in feed. So to avoid this feeding problem for birds, we add supplements, i.e. NSP enzymes (non-starch polysaccharides) these are the enzymes that a bird cannot produce. As we know, enzymes are biocatalysts that improve the reaction without being altered. They also increase the bird's growth, and as the decreases in the wastage of feed, the effect of the bird dropping on the environment also decreases. This overview shows us how enzymes help the environment and poultry farmers.