Feed for protecting intestinal tracts of eels and preparation method of feed

Abstract

The invention relates to a feed for protecting intestinal tracts of eels. The feed comprises the following components: fish meal, monocalcium phosphate, choline, citric acid, beer yeast, starch, compound vitamins and compound mineral substances. By sterilizing and enzyme-deactivating the fish meal, pathogens are killed, the activity of amylase and antitrypsin is removed at the same time, the fish meal is easy to digest and absorb after being puffed, such that the intestines and stomach of the eels are better protected; the beer yeast contains a large amount of B-group vitamins and active yeast, is easy to absorb, and can enhance the digestive ability of the eels and protect intestines and stomachs of the eels; and the activity of amylase in the fish meal is passivated, the feed can reduce the addition amount of starch and ensure the viscosity, the low starch can accelerate the fermentation of beer yeast in the feed, the digestion and absorption time of the feed is shortened, and the gastrointestinal burden of the eels is relieved.

Description

technical field [0001] The invention relates to the technical field of feed, in particular to a feed for protecting eel intestines and a preparation method thereof. Background technique [0002] At present, there are usually Japanese eel, European eel and American eel in China. The alimentary canal of eel is composed of oropharyngeal cavity, esophagus, stomach, small intestine and rectum. Composed of submucosa, muscular layer and serosa layer; esophagus is short, mucosal epithelium includes stratified squamous epithelium and single layer columnar epithelium, stomach is dilated and Y-shaped, composed of cardia, gastric body and pylorus, and caecum is well developed 1. The gastric wall mucosa is a single layer of columnar epithelium, the gastric glands are located in the gastric body, the intestinal tract is short, including the small intestine and rectum, and the goblet cells and mucosal folds decrease continuously from front to back. Because of the eel's special digestive ...

AI Technical Summary

Problems solved by technology

[0003] The eel feed on the market is processed by crushing fish meal with starch and other additives. Because fish meal contains a large amount of amylase, the proportion of starch must be increased to ensure that the feed does not lose. Moreover, fish meal has a long cycle from production to use, and fish meal is easy to deteriorate. The original pathogens and antitrypsin of fish meal, these factors can easily cause eel gastroenteritis

[0004] The eel pellet feed in the market has a very low market share because of its poor palatability and indigestibility.

[0005] At present, the crushing devices on the market only have a single crushing mechanism, and the unevenly crushed eel feed cannot meet the feed requirements for raising eels. Therefore, it is urgent to provide a superfine crushing device that has a good crushing effect and protects the feed of eel intestines. problem solved

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