SC/T 2014-2003 Swimming crab (Broodstock of Portunus trituberculatus)

This standard specifies the requirements, inspection methods and judgment rules, as well as packaging and transportation for female broodstock used in artificial breeding of swimming crabs. This standard applies to broodstock of swimming crabs. SC/T 2014-2003 Swimming crab broodstock SC/T2014-2003 Standard download decompression password: www.bzxz.net

This standard is proposed by the Ministry of Agriculture and approved by the National Aquatic Product Standardization Technical Committee of Marine Breeding. SC/T2014—2003. The drafting units of this standard are: Shandong Changxu Industry Technology Extension Station, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences. The main drafters of this standard are: Li Gejing, Yu Dongxiang, Tu Juanniu, Chen Jiaoshang, Liu Shujin, Zhang Guifen, Lan Jijun, Zhao Shusong. Yanyuan Portunus scalypinus scalypinus SC/12014—2 This standard specifies the requirements for the use of artificial breeding of three pairs of crabs, the test methods and judgment criteria, as well as packaging and transportation. This standard applies to the following three documents:
2 Normative references
The clauses in the documents are the clauses introduced by this standard. The references are the meaning of the references, and all the amendments after the references are not applicable to this standard. However, the latest versions of these documents are not applicable to this standard. 5 is the dated document, and its latest version is applicable to this standard GR114.07 Oil industry water standard
3 Terms and definitionsbZxz.net
The following terms and definitions apply to this standard. 3.1
Broodercrabs
Female adult brooders (including those who have been mated before winter and are used as the culture medium for the whole day of the seedling flushing) are used. 3.2
whole armor fee widthrferabhell
a epidemic connection thousand years adult body head chest Zhongzhou thank you obtain sharp article cry stand donkey away. 3.3
hold print cnrryingeges
the egg through the oviduct wisdom sand out of the fan and sticky fear shadow inside the share shape city pocket that, and in this good conservation to swim let management. 3. 4
hold that is no crabufearryingg
attached share bubble storage waiting for the egg to come female decline promise. Quality requirements
4.1 meter source
virtual flow use more industry some few people a progress generation of people a raise close parent whole 4.2 appearance
4.1 a forest strong, to the outside world this should be beautiful single start delivery speed fast, quiet time step is text hold power. 4.2.2 Also normal, clean, no attachments and uniform, poor quality of the actual collection of the case, 4.2.3 The body is intact without reflection, the shell is hard and strong. Especially the damage of the larvae. 4.2.4 The egg is not in good condition, the egg is yellow or yellow, the color is bright, the color is uniform, and the development of the body is the best.
4. 3 Measurable indicators
The whole carapace width is 15m or more. The best is 1
SC/T 2014---2003
4.4 Inspection methods and judgment rules for microorganisms
5.2 Appearance and count
Observe with naked eyes and record.
5.3 Measurable index
5.3.! Measure with ruler after evaluation (accuracy is 1). 5.3.2 Physical requirements: Clean the surface of the body, use filter paper to strengthen the surface moisture, cool it, and weigh it with an electric disk (sensitivity is 1>,
5.4 Quarantine
Light within the eye Or palm appearance requirements to check all crabs, brush off unqualified ones. And randomly select three crabs from the small, respectively, and seal their muscles and breast tissues, and conduct microscopic examination to see if the membrane is with microworms. 5.5 Judgment rules
As long as the crabs are found, the batch is judged to be unqualified. 6 Packaging and transportation
6.1 Dongmu transportation:
6.2 Waterless transportation; Applicable to short-distance transportation within 1b, use water to wet absorbent cotton or towels, and use rubber bands to seal the whole package with a sufficient seal, and put it in a pre-stored storage box <50mm×50In the middle, after forming a layer, you can put another layer of wood on it, and then collect the eggs. In this way, you can place 10-10 layers of 0.5m public trenches to maintain airtight circulation, and the board will be oxygenated and loaded for transportation. 8-10 boxes can be made. 6.3 Belt selection: It is the main transportation method at present. It uses a lining bag, a 50-7 cylindrical small-mouthed plastic barrel as an auxiliary transport container, or a mesh sheet for delivery. It is appropriately layered and the number of fixed materials is placed in it. It is airtight and loose. The plastic can be only 1? 1. Put all the rubber bands in a container and fill it with one-third seawater (70cm×40cm), 2-3 pieces per container, and put them in a deep incubator (see 6.2 for dimensions), and keep the water at 26℃. 23. If the temperature is high, add a few small ice packs (small ice packs are more effective and can be adjusted according to the air source). Seal the box and load it for transportation. 6.4 The temperature difference between the water used for transportation and the water used for seedlings should not be less than 2, and the salinity difference should not be more than 5. 65 The water used for transportation should comply with the provisions of 507
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