Grass carp feed and preparation method thereof

The invention discloses a grass carp feed and a preparation method thereof, belonging to the technical field of animal feeds. The grass carp feed comprises the following raw materials in parts by weight: 5-10 parts of fish powder, 1-5 parts of rice bran, 1-2 parts of monocalcium phosphate, 0.5-1 part of distillers' grains, 1-3 parts of bentonite, 5-10 parts of rapeseed meal, 1-5 parts of soybean meal, 1-5 parts of wheat bran, 3-9 parts of corn powder, 3-5 parts of alfalfa powder, 1-3 parts of compound vitamin, 3-9 parts of hawthorn fruit and 1-5 parts of indigowoad leaf. The grass carp feed does not contain antibiotics or hormones, not only can meet the requirement for plenty of nutrient elements for growth of grass carps but also has low morbidity and good feeding attraction property, and can conduce to obviously increasing the growth rates of the grass carps and increasing the feed conversion rate. Meanwhile, the preparation method is simple, is low in cost and is suitable for large-scale production.