Compound feed for micropterus salmoides fries

Abstract

The invention discloses a compound feed for micropterus salmoides fries. The compound feed is prepared by mixing the following raw materials in parts by weight: 20-30 parts of imported white fish meal, 7-15 parts of ferment collagen chopped fibers, 10-15 parts of snail powder, 5-10 parts of earthworm powder, 3-6 parts of kelp powder, 10-15 parts of a substance obtained by spraying corn steep liquor onto byproducts produced during production of bean products such as bean curds, soybean milk, etc., and performing drying, 3-6 parts of grape seed meal, 5-10 parts of starch, 3-16 parts of starch residues, 3-5 parts of fish oil, 3-5 parts of soybean phospholipid powder, 2-3 parts of calcium dihydrogen phosphate, and 1-2 parts of choline chloride. The feed disclosed by the invention is reasonable in component compounding and balanced in nutrients, can effectively meet growth requirements of the micropterus salmoides fries, and besides, can increase the survival rate of the micropterus salmoides fries. Quick growth of the fries is guaranteed, and the feed coefficient is reduced.

Description

technical field [0001] The invention relates to the field of aquatic feed, in particular to a compound feed for California perch fry. Background technique [0002] California bass (Micropterus salmoides), formerly known as largemouth bass, belongs to Perciformes, Sunfish family, and Perch genus. It is native to the Mississippi River system and is a rare carnivorous fish with fast growth and delicious meat. It has the characteristics of large individual, fast growth, strong disease resistance, and delicious meat. California perch likes to live in sandy or sandy muddy still water without turbidity, and is active in the middle and lower water layers. Docile temperament, easily frightened. California perch has a wide range of suitable temperatures. It can survive when the water temperature is 1-36.4°C, and it starts to feed above 10°C. The optimum growth temperature is 20-30°C. The water quality requires that the dissolved oxygen per liter of water should be above 1.5 mg. Ju...

AI Technical Summary

Problems solved by technology

There are many problems in chilled fresh farming: (1) The water quality is easy to deteriorate. Long-term feeding of chilled fresh food will accelerate the deterioration of water quality, resulting in a large number of blue-green algae blooms, the concentration of harmful substances in the water body will increase, and the water quality will easily deteriorate. The discharged aquaculture wastewater is easy to pollute the river without any treatment; (2) diseases are prone to occur, and a large number of pathogens are brought in during the process of feeding chilled food, such as nocardiosis, rotational disease, kidney necrosis, etc.; (3) Environmental pollution, chilled fish need to be thawed and then fed. After the farmers take out the chilled fish, they usually thaw them directly in the sun by the pond, resulting in cross flow of ice water, fishy smell, and flies flying around; (4) Potential quality hazards. Untreated aquaculture wastewater will affect the surrounding water environment after being discharged, resulting in no water to replace. After a disease occurs, a large number of antibiotics will be used to cause excessive drug residues, reduce the quality of aquatic products, and affect food safety.

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