Bighead carp feed and preparation method thereof

Abstract

The invention relates to a bighead carp feed and a preparation method thereof. The bighead carp feed comprises the following main raw materials and rough components: 10-12% of soy bean meal, 15-18% of cottonseed meal, 18-22% of rapeseed meal, 20% of wheat middlings, 15% of oil bran, 5% of imported fish meal, 2% of monocalcium phosphate, 2% of compound premix, 1-2.5% of plant oil and 5-10% of other raw materials (bentonite, zeolite powder and the like) playing a role of filling. The preparation method comprises the steps of ultramicro grinding, preparing, blending, extruding and cooling and mixing. The bighead carp feed has the following characteristics: the grinding fineness is good, the sinking speed is low, the bighead carp utilization ratio is high, the fish school growth speed is high, the cultured bighead carp has shape, color and mouthfeel the same as the bighead carps in the natural water body and has excellent quality, and the bighead carp feed can effectively improve the culture benefits and simultaneously conforms to the requirements for ecologically healthy culture and environmental protection.

Description

technical field [0001] The invention relates to a bighead carp feed and a preparation method thereof. Background technique [0002] Bighead carp is also called silver carp, fat head fish, big head fish and black carp. It looks like silver carp, with flat sides, big and wide head, and the head length is about 1 / 3 of the body length. The mouth is also wide, slightly upturned, the eye position is low, the gill opening is large, the operculum is well developed, the scales are thin and dense, the back is black, the side of the body is dark brown with black or yellow spots, the abdomen is gray and white, and the fins are light gray , with a horny ventral rib from the base of the pelvic fin to the anus, the pectoral fin is longer, its trailing edge exceeds the base of the pelvic fin, and the length of the intestine is 5-7 times the body length. [0003] Bighead carp are docile in nature, do not like to jump, and live in the middle layer of the water body. Filter-feeding, mainly e...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the eutrophication of the water body caused by excessive fertilization in the prior art, causing water source pollution, low growth efficiency of fish, and a large amount of waste of fish feed, etc., the present invention proposes a fish feed specially for bighead carp breeding And the preparation method thereof, using the fish feed of the present invention, the crushing fineness is good, the sinking speed is slow, the utilization rate of bighead carp is high, the growth speed of fish school is fast, and the body shape, body color and taste of the bighead carp raised are similar to those of bighead carp in natural water bodies. The fish is the same, with good quality, which can effectively improve the breeding efficiency, and at the same time minimize the pollution to the water environment, which meets the requirements of ecological healthy farming and environmental protection