Compound feed for preventing fatty liver of tilapia and preparation method of feed

Abstract

The invention discloses a compound feed for preventing fatty liver of tilapia and a preparation method of the feed. The compound feed is prepared from the following raw materials according to a certain proportion: fish meal, fermented soybean meal, meat and bone meal, rapeseed meal, cottonseed meal, wheat bran, wheat flour, calcium dihydrogen phosphate, multi-vitamin premix, multi-mineral premix, soybean oil, soybean lecithin, chitosan oligosaccharide, astragalus polysaccharide and choline chloride. The preparation comprises the following steps of: respectively crushing and screening all the raw materials (except the soybean oil) by a crushing machine, weighing the flour, the calcium dihydrogen phosphate, the multi-vitamin premix, the multi-mineral premix, the soybean lecithin, the chitosan oligosaccharide, the astragalus polysaccharide, the choline chloride and other raw materials according to the mass fraction in the formula and mixing uniformly, further weighing the remaining raw materials, uniformly stirring and mixing, fully uniformly mixing with water, performing extrusion and pelletization by a feed machine, and drying at the temperature of 55-60 DEG C to prepare the feed for the tilapia. The compound feed has balanced nutrition, is suitable for requirements of healthy growth of the tilapia and can further reduce the accumulation of fat in livers of the tilapia and improve disease resistance of the tilapia.

Description

technical field [0001] The invention relates to a compound feed, in particular to a compound feed used for tilapia and preventing fatty liver of tilapia, and also relates to the preparation of a compound feed used for tilapia and preventing fatty liver of tilapia method. Background technique [0002] Tilapia has become one of the main species of freshwater aquaculture in my country due to its strong fecundity, fast growth, and strong disease resistance. Global consumption is on the rise. However, with the expansion of the scale of artificial breeding, fatty liver often occurs in tilapia under intensive farming conditions, and it becomes more and more serious, which will affect the growth rate of tilapia in the slightest, reduce the feed coefficient, and reduce its disease resistance in severe cases, resulting in The outbreak of infectious diseases causes a large number of fish deaths and brings huge losses to farmers. The formation of tilapia fatty liver is not only affect...

AI Technical Summary

Problems solved by technology

However, with the expansion of the scale of artificial breeding, fatty liver often occurs in tilapia under intensive farming conditions, and it becomes more and more serious, which will affect the growth rate of tilapia in the slightest, reduce the feed coefficient, and reduce its disease resistance in severe cases, resulting in The outbreak of infectious diseases caused a large number of fish deaths and brought huge losses to farmers

The formation of tilapia fatty liver is not only affected by the breeding density and the water quality of the breeding environment, but also largely due to the nutritional imbalance of the bait, such as feeding low protein, high fat, high carbohydrate feed is difficult to satisfy the The need for healthy growth of fish, the lack of vitamins and minerals in the feed can easily cause nutritional and metabolic disorders in tilapia, and the lack of anti-fatty liver factors in the feed will lead to excessive fat accumulation

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