Formula and preparation method of easy-to-digest tilapia mossambica feed with fish oil being partially replaced by linseed oil

Abstract

The invention discloses easy-to-digest tilapia mossambica feed with fish oil being partially replaced by linseed oil. The easy-to-digest tilapia mossambica feed is prepared from, by weight, 55-65 parts of diatomite, 6-9 parts of garlic powder, 29-31 parts of potato powder, 280-300 parts of rapeseed dregs, 35-45 parts of fish oil, 340-380 parts of soybean meal, 30-40 parts of linseed oil, 25-35 parts of linseed gum, 13-17 parts of coptis chinensis powder and 80-100 parts of shrimp meal. The easy-to-digest tilapia mossambica feed is elaborately prepared according to the characteristics of tilapia mossambica, and is made into hard particles which are more easily eaten by the tilapia mossambica living in a middle-and-lower layer water area; the raw materials are smashed repeatedly in the preparation technology so that the fineness of the feed can be improved; the feed can be digested and decomposed quickly in the intestinal tract after being eaten by the tilapia mossambica, and thus the feed can be fully utilized; the feeding amount of the feed can be reduced, meanwhile, the quantity of feed residues which are defecated without being digested in the feeding water area is reduced, and therefore the cleanliness of a water body is improved.

Description

Technical field [0001] The invention relates to the technical field of feed, in particular to a digestible tilapia feed formula with linseed oil partially replacing fish oil and a preparation method thereof. Background technique [0002] Tilapia is the main farmed fish in my country and is deeply loved by consumers. Tilapia is an omnivorous fish. Its growth, development, and metabolism require a large amount of n-3 unsaturated fatty acids. Fish oil is rich in n-3 such as docosahexaenoic acid and eicosapentaenoic acid. Unsaturated fatty acids are used extensively in traditional feeds as fat sources, but fish oils are too expensive due to shortage of resources, which increases the cost of feeds. Therefore, the present inventors designed a tilapia feed that greatly reduces the amount of fish oil, in which fish oil and linseed oil are used as fat sources for tilapia, linseed oil contains a large amount of α-linolenic acid, and tilapia has The ability to convert α-linolenic acid int...

AI Technical Summary

Problems solved by technology

Tilapia is an omnivorous fish, and its growth, development, and metabolic processes require a large amount of n-3 unsaturated fatty acids, and fish oil is rich in n-3 fatty acids such as docosahexaenoic acid and eicosapentaenoic acid. Unsaturated fatty acids are widely used as a fat source in traditional feed, but the price of fish oil is too high due to the shortage of resources, which increases the cost of feed