Nutritional grass carp feed with linseed meal and preparation method thereof

The invention discloses a nutritional grass carp feed with linseed meal. The feed is characterized by being prepared from following raw materials including, by weight, 20-23 parts of rapeseed cake, 19-24 parts of the linseed meal, 1-3 parts of detoxified cotton protein, 14-17 parts of pea straw, 15-18 parts of broad bean straw powder, 16-19 parts of pod shells of petits pois, 12-14 parts of chicken manure, 10-13 parts of milk powder, 8-12 parts of sweet potato powder, 12-16 parts of sweet corn, 13-15 parts of trichosanthes kirilowii, 14-18 parts of angelica sieboldi, 0.3-0.5 parts of brandisia hancei, 0.2-0.4 parts of loquat flowers, 0.1-0.3 parts of rhodiola rosea, 0.2-0.5 parts of fructus sphaerophysa salsula, 3-6 parts of additives and a proper amount of water. In the invention, the linseed meal, which is rich in fibers and [omega]3 fatty acid, is added to the feed so that the feed can reduce cholesterol. Meanwhile, with addition of Chinese herbal medicines, such as the brandisia hancei, the loquat flowers, the rhodiola rosea, the fructus sphaerophysa salsula and the like, the feed can enhance immunity of grass carp, can enhance health of the grass carp and cold-resistant and diseases-resistant capability of the grass carp, thereby ensuring the grass carp to go through winder successfully and increasing a safe coefficient of overwintering breeding.