Compound feed for micropterus salmoides fries

Abstract

The invention provides compound feed for micropterus salmoides fries. The compound feed comprises the following raw materials, by weight: 40-50 parts of bran, 21-26 parts of soybean dreg, 15-20 partsof cuttlefish powder, 15-20 parts of chicken liver powder, 10-16 parts of buckwheat, 2-6 parts of water snake meat powder, 4-8 parts of castor oil residues, 2-6 parts of a feed additive, 0.6-1.8 partsof a mineral salt mixture and 0.5-1.5 parts of a multi-vitamin premix. The feed additive is prepared by using raw materails: 75 to 85wt% of main traditional Chinese medicine extract, 10 to 15 wt% ofolive oil and 5 to 10 wt% of medical stone powder. The traditional Chinese medicine extract is mainly prepared by using the following materials: grape seeds, black rice, poria cocos, lotus seeds, longans, Chinese yams, Chinese thorowax root, mulberries, selfheal and earthworm powder through enzymolysis and boiling extraction. With the feed, the bacterial infection rate of fries can be reduced; theimmunity can be improved; the oxygen uptake rate of the fries can be enhanced; the activeness of the fries can be improved and the survival rate can be increased.

Description

technical field [0001] The invention belongs to the technical field of aquaculture feed, and in particular relates to a compound feed for California perch fry and a preparation method thereof. Background technique [0002] Largemouth bass, formerly known as largemouth bass, is covered with grayish-white or light yellow fine scales, but the color of the back line is darker, often greenish blue or light black, and there are often black markings along the side line. The abdomen is gray and white. It is a rare carnivorous fish with delicious meat, strong disease resistance, rapid growth, easy to catch, and wide temperature adaptability. California sea bass grows fast, and the fry that were bred that year can grow to 0.5 kg, reaching the market. Specification. One-week-old fish are sexually mature and can reproduce. No matter they are cultured in single ponds or polyculture in fish ponds, they can effectively control the excessive reproduction of wild fish, shrimp and tilapia in...

AI Technical Summary

Problems solved by technology

[0003] The degradation of California perch germplasm resources has seriously affected the quality of California perch species, resulting in a greatly reduced survival rate, disease resistance and environmental adaptability of perch species, resulting in slow growth, many diseases, long breeding cycles, and poor feed coefficient. Phenomena such as high and small size seriously restrict the sustainable and healthy development of my country's California perch industry