European eel black fry feed and preparation method thereof

Abstract

The invention relates to European eel black feed which comprises the following components: fish meal, vital gluten, flour, starch, defatted tenebrio molitor powder, choline, fermented soybean meal, citric acid, compound minerals, fish oil, compound vitamins, lactic acid bacteria and bifidobacterium. The preparation method comprises the following steps: mixing fish meal, fermented soybean meal, degreased tenebrio molitor, flour, choline, citric acid and other additives, crushing, molding at 90 DEG C, drying at 80 DEG C, controlling the moisture to be 9-10%, cooling the feed, and spraying fish oil, lactic acid bacteria and bifidobacterium in vacuum; the feed is low in flour content, high in protein and high in fat, probiotics are added to help digestion, and the feed is good in digestion and absorption.

Description

technical field [0001] The invention relates to the technical field of feed, in particular to a European eel sunspot feed and a preparation method thereof. Background technique [0002] The European eel is a fish of the genus Eelidae, with an elongated and snake-like body and a flattened tail. It is very similar to the Japanese eel, but the European eel has higher nutritional requirements. It needs high-protein, high-fat feed, as well as suitable trace elements and vitamins. It is suitable for running water, and its high temperature resistance is worse than that of the Japanese eel. [0003] At present, in order to ensure viscoelasticity and cost control of feed in the market, the price of fish meal with affinity to starch remains high, and the eel feed has to use a large proportion of starch. The addition of a high proportion of starch also affects the overall nutritional balance of the formula, and the feed efficiency is low. Indigestion causes European eels to be prone t...

AI Technical Summary

Problems solved by technology

[0003] At present, in order to ensure viscoelasticity and cost control of feed in the market, the price of fish meal with affinity to starch remains high, and the eel feed has to use a large proportion of starch. The addition of a high proportion of starch also affects the overall nutritional balance of the formula, and the feed efficiency is low. Indigestion, resulting in easy enteritis of adult European eels, decreased disease resistance, low feed efficiency, and slow growth

[0004] European eel sunspot feed in the market contains high starch content, European eel is not easy to digest and absorb, easy to enteritis, and poor growth

Due to the high price and large proportion of fish meal with strong affinity to starch, the feed cost of European eel is high and the breeding risk is high

[0005] Most European eel sunspot feeds in the market are high in protein and low in fat. Improper energy-to-egg ratio, unbalanced nutrition, and incomplete digestion result in too high phosphorus and ammonia nitrogen content in the water, which cannot meet the national sewage discharge standards. Poor water quality can easily lead to eel diseases. cause feed inefficiency

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