Sea perch compound feed with low content of fish meal and preparation method thereof

Abstract

The invention discloses a sea perch compound feed with a low content of fish meal and a preparation method thereof. The feed consists of the fish meal, a fish meal protein substitute, a fat-source substance, calcium dihydrogen phosphate, minerals, vitamin C phosphate, vitamins, choline chloride and methionine, wherein the content of crude proteins accounts for 36.61-39.85%, the content of crude fat accounts for 7.23-8.57%, and the content of crude ash accounts for 6.55-7.63%. The compound feed can obviously enhance the immune function and disease-resistant, stress-resistant and stress-resistant capability of cultured sea perches, no antibiotics are added, the harmony of nutrition, attractivity, palatability, stress resistance and disease resistance is realized, and the compound feed is beneficial to realizing healthy and safe breeding. The compound feed not only is balanced in nutrient, safe and efficient, but also can greatly increase the content of flavor substances in the bodies ofthe sea perches, no prohibited drugs are contained in the bodies of the sea perches, and the delicious taste of the produced sea perches is similar to that of wild sea perches.

Description

technical field [0001] The invention belongs to the field of aquatic feed, and in particular relates to a low-fish meal compound feed for sea bass and a preparation method thereof. Background technique [0002] Sea bass has the characteristics of short breeding cycle, delicious meat, and high economic benefits. In recent years, the intensive cultivation of sea bass has developed rapidly, and the breeding technology has become increasingly mature. At present, the feed coefficient of sea bass is generally between 1.3-1.5, and the cost of sea bass breeding feed accounts for more than 70%. [0003] Fishmeal has always been an indispensable source of high-quality protein in aquatic feed. The amount of protein added to sea bass feed is generally about 45%, of which the amount of fishmeal exceeds 30%. At present, other protein sources are generally used to replace fishmeal in seabass compound feed. The raw materials commonly used as fishmeal protein substitutes mainly include soyb...

AI Technical Summary

Problems solved by technology

However, the replacement effect of different feed protein sources is not satisfactory, and there are many problems such as nutritional imbalance, amino acid imbalance, and unstable effect.

[0004] At present, the protein content in sea bass feed is still at a relatively high level. A large number of studies have shown that excessive protein (fish meal) content in feed not only increases the metabolic load of fish, but also causes nutritional or metabolic diseases in severe cases, and at the same time increases nitrogen, Phosphorus excretion, especially nitrogen excretion, seriously pollutes the breeding ecological environment

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