Red-white crucian carp
Variety registration number: GS02001-2002
Parent source: red crucian carp, white crucian carp
Breeding Unit: Tianjin City New Aquatic Seed Farm
The breeding method includes selecting 2 female long-tailed crucian carp from red crucian carp and mating 3 male white crucian carp to produce red-white long-tailed crucian carp, and then strictly selecting 9 self-bred offspring of red-white long-tailed crucian carp according to breeding objectives. After 12 years of breeding to F5 generation, the genetic traits such as body color, body shape and fin shape have stabilized at more than 90%. Red and white long-tailed crucian carp body surface white background, head, back or body embedded red patches, red and white alternate, distinct boundaries, tail fin length equal to or greater than the body length, thin and soft, such as streamers, very ornamental value.
The variety has strong adaptability, wide feeding habits, low oxygen tolerance, survival temperature of 1-35℃, and can live well in ponds and aquariums. In the past 3-4 years, it has sold 8 million in the domestic market and is very popular in Europe and Southeast Asian countries. It can be cultivated at home and abroad.
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Matters needing attention for fishery seedling
The newly built pond was soaked in water for 1 to 2 days, and then disinfected. The old pond must drain the water, thoroughly remove the sludge and weeds, use ploughing, sun exposure and washing to promote the oxidation, decomposition and removal of organic matter, and finally carry out disinfection. Commonly used disinfectants are quicklime, bleach, sodium dichloroisocyanurate. The disinfection method generally injects water into the aquaculture pond for 10 to 30 centimeters. After dissolving in the water, the disinfectant is thrown into the pond. Rinse the cement pool with potion many times, and then rinse with clean water. For example, in an enterprise, Penaeus vannamei is disinfected 15 days before stocking.
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High viscoelastic surimi products (1)
In the processing and production of all kinds of surimi food, the choice of fish species and the freshness of fish are very important; it affects the elasticity of the products, so there is a certain limit on the amount of soybean and wheat protein powder mixed in surimi raw materials, and too much will weaken the elasticity of the products. In order to solve the elasticity problem of aquatic surimi products, a new method was used to make fish protein or mix it with plant protein to make protein fiber, and then mixed with surimi to produce surimi food with excellent viscoelasticity, which can make C-grade low-grade surimi elastic. Enhanced to more than A grade. The production method changes the original
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