Expanded feed for grass carp and tropical fish and preparation method of expanded feed

Abstract

The invention discloses an expanded feed for grass carp and tropical fish and a preparation method of the expanded feed. Super steam fish meal, dregs of beans, Canadian rapeseed meal, Xinjiang cotton dregs, expanded soybean, Maotai distillers' grains, full-fat rice bran, wheat flour, soya-bean oil, calcium dihydrogen phosphate, compound premix, choline, esterification vitamin C, growth promoting liver-protecting preparation and brewer's yeast zymolyte are mixed according to a certain sequence in proportion, the sum of the weights of the components is 100%, raw materials which are easily digested and absorbed are adopted in preparation, the digestibility of the feed is greatly improved, absorption and utilization of nutritional substances are promoted, and the feed is easily digested in an expanding process in a preparation process; and therefore, the growth promoting preparation as an additive, the brewer's yeast zymolyte, the esterification vitamin C and the like which facilitate metabolism are added in the expanded feed in a combined manner, health degree of the grass carp is good, and purposes of relieving stress and reducing death in conveying and hauling processes.

Description

technical field [0001] The invention relates to the field of aquaculture feed, in particular to an expanded feed for grass carp and hot water fish and a preparation method thereof. Background technique [0002] Grass carp is the main economic fish farmed in Hubei Province, with an annual output of more than 500,000 tons. Because the market price of grass carp is often higher in July, August and September, the unit price is usually more than 1 yuan / catties higher than that in other months. Affected by the interests of the market environment, a large number of farmers increased the stocking density of grass carp, and sold a large number of fish in July, August, and September to compete for fish prices; because the temperature in the three months of July, August, and September was above 37°C, it even caused the water temperature to even drop. over 33°C. Due to the high temperature, the stress of grass carp is too high during the fishing process in these months, the grass carp...

AI Technical Summary

Problems solved by technology

Due to the high temperature, the stress of the grass carp is too high during the fishing process in these months, the grass carp is not resistant to transportation, and a large number of deaths occur during the netting process.

[0003] The patent with the application number 201610005420.8 is also an extruded feed suitable for grass carp and black carp developed by the inventor of this patent. The main solution is the traditional sinking pellet feed with a high feed coefficient, generally between 2.5 and 3.0, and a lot of excrement , causing a heavy load on the water environment of the aquaculture pond; and this patent is based on the previous patent. Intolerance to transportation and other issues

Images