CN101874568B - Opening bait for Qinghai lake naked carp larva - Google Patents

Abstract

The invention belongs to the technical field of Qinghai lake naked carp bait, in particular relates to an opening bait for feeding the Qinghai lake naked carp larva, wherein the bait comprises yellow bean, lard and salt at a ratio of 100:4-10:0.5-2.5; the preparation method comprises the following steps: preparing the raw materials by weight, frying the yellow bean, crushing by a crusher, sieving by a sieve having less than or equal to 60 meshes, obtaining the ripe yellow bean powder, melting the lard and cooling to 18-24 degrees centigrade, getting 4.5-5.5 times of water, dissolving the salt and getting the salt solution, uniformly mixing the ripe yellow bean powder, lard and salt solution to get the product. The bait is convenient to get raw materials, has rich nutrition and low cost, and is used for feeding fish larva and fish fry; the dish fry will be rapidly grown; after fed for 15 days, the fish fry will be 2.3cm long; thus the feeding cost is greatly reduced.

Description

Opening bait for Qinghai lake naked carp larva

One. technical field:

The invention belongs to Gymnocypris prezewalskii bait technical field, particularly a kind of open-mouthed bait that is used to feed Qinghai lake naked carp larva.

Two. background technology:

Qinghai Lake is the maximum salt water lake, plateau of China; Its fishery resources have been in comprehensive decline state; Fish in the lake are mainly Gymnocypris prezewalskii, and for recovering the naked carp resource of Qinghai Lake, our province government has carried out 10 years envelope lakes and educated fish; And utilize artificial fecundation to release, promptly to the Gymnocypris prezewalskii artificial propagation and the fry rearing of releasing.Opening bait for Qinghai lake naked carp larva is the basis of cultivating the fry of releasing, and behind the incubating oosperm, is open-mouthed bait with wheel animalcule, cladocera, copepod larva under the natural conditions, can grow up to 2.3 centimetres through 15～20 days.And artificial breeding naked carp fry, the open-mouthed bait of employing is commercially available good year worm's ovum, good year worm's ovum price is high, and fry looks slowly in reality is fed, the nursing cost is very high.

Three. summary of the invention:

The objective of the invention is the above-mentioned deficiency to the prior art existence, and study a kind of new opening bait for Qinghai lake naked carp larva, this bait designs according to fry muscle nutrition composition; Do not contain chemical raw material, prescription is drawn materials conveniently, and is with low cost; It is convenient and safe to feed, and residual bait ight soil is difficult for ruining water quality, and juvenile fish happiness food and growth are fast; Threw something and fed once in per 2 hours, fry can grow to more than 2.3 centimetres after 15 days.

Technical scheme is: the preparation method of this opening bait for Qinghai lake naked carp larva is: the mass ratio of composition of raw materials is one, soya bean: lard: crude salt=100: 4～10: 0.5～2.5; Two, preparation method is for to prepare burden above-mentioned three kinds of raw materials by above-mentioned quality proportioning, and the batching back fries soya bean, pulverizes with pulverizer; Again with being less than or equal to the screening of 60 mesh; The full fat soybean powder, lard fusing and be cooled to 18～24 ℃, get the water of 4.5～5.5 times of crude salt weight; The water salting liquid is processed in crude salt dissolving, at last with full fat soybean powder, lard, water salt solution mix stir product.Soya bean is the nontoxic rotten soya bean after drying.Lard is the lard stearin after boiling from the former lard that pig takes off on one's body.Crude salt is edible salt or industrial salt.Above-mentioned three kinds of raw materials have no pollution, and raw material sources are convenient, make simply, and food nutrition is abundant, and the bait cost is very cheap.Adopt this bait to feed prelarva, fry physique is healthy and strong, neat specification, and it is active to move about, and growth is quick, throws something and feeds once in per 2 hours, and fry can grow to more than 2.3 centimetres after feeding 15 days, greatly reduces the cost of feeding.

Four. the specific embodiment mode:

Embodiment 1: get the clean raw soya bean of double centner, 4 kilograms of lard stearins that boiled and 0.5 kilogram of salt are prepared burden, and earlier soya bean are fried during making; Pulverize with pulverizer again; With 60 mesh sieve the full fat soybean powder, lard fusing and be cooled to get the water of 4.5 times of crude salt weight about 18 ℃; Promptly 2.25 kg water are dissolved into the water salting liquid with salt, at last with full fat soybean powder, lard, water salt solution mix stir product.

Embodiment 2: get the clean raw soya bean of double centner, 10 kilograms of lard stearins that boiled and 2.5 kilograms of industrial salts are prepared burden, and earlier soya bean are fried during making; Pulverize with pulverizer again; With 80 mesh sieve the full fat soybean powder, lard fusing and be cooled to get the water of 5.5 times of industrial salt weight about 24 ℃; Promptly 13.75 kg water are dissolved into the water salting liquid with salt, at last with full fat soybean powder, lard, water salt solution mix stir product.Product is exactly an opening bait for Qinghai lake naked carp larva.

Claims (1)

1. opening bait for Qinghai lake naked carp larva is characterized in that its preparation method is: the mass ratio of composition of raw materials is one, soya bean: lard: crude salt=100: 4～10: 0.5～2.5; Two, preparation method is for to prepare burden above-mentioned three kinds of raw materials by above-mentioned quality proportioning, and the batching back fries soya bean, pulverizes with pulverizer; Again with being less than or equal to the screening of 60 mesh; The full fat soybean powder, lard fusing and be cooled to 18～24 ℃, get the water of 4.5～5.5 times of crude salt weight; The water salting liquid is processed in crude salt dissolving, at last with full fat soybean powder, lard, water salt solution mix stir product.