This standard specifies the requirements, inspection methods and judgment rules for the seedlings of three-defect swimming crab (Portunus tritubeculatus Miers), as well as the requirements for packaging and transportation. This standard is applicable to the quality assessment of three-defect swimming crab seedlings. SC/T 2015-2003 Three-defect swimming crab seedlings SC/T2015-2003 Standard download decompression password: www.bzxz.net

This standard is proposed by the Ministry of Fisheries and Fisheries of China. This standard is the international standard for marine aquaculture and is approved by the National Aquaculture Standardization Technical Committee. SC/T 2015—70 This standard was drafted by Shandong Shouguang Fisheries Station, Feihai Fisheries Research Institute, National Academy of Fisheries Sciences. The main drafters of this standard are Yu Dongshi, Yisheng, Chen Rixiao, Huang Shuyuan, Liu Changnian, Fei Wangsu, Ai Jilao, Shuge.1 Rongtian. The XT2015—2003 standard specifies the requirements for the whole (Puunmriuberulatuxmiers) species, inspection methods and regulations, as well as the requirements for packaging and transportation. This standard is applicable to the quality assessment of the whole process of the institute. 2 Normative references The following clauses in the referenced documents shall constitute the clauses of this standard. The referenced documents with the date of reference shall not include any changes or modifications after the date of reference (including those not applicable to the document). However, the company shall not use the latest version of the document after the date of reference. For referenced documents without date of reference, the latest version shall be recorded in the table below: --50, Industrial water quality standard
Classification of seedling specifications
Specifications are shown in Table 1.
Seedling single specification belt
, A
Quality requirements
Small eye support Dong seed
Seedling specification division
Medium specification bridge seed
2. 6 -, young>
n, 81--3
4.1 Appearance
Individual is complete, healthy, strong, large and small, internal space is bright, no bed and no matter, no quality. 4.2 Countable indicators
The current standard rate, deformity, injury line and dead line, impurity content shall meet the requirements of Table 2. The table shows the requirements for the indicators of various types of products. The grade rate of the products should not be lower than the listed values. The total percentage of impurities should not be lower than the listed values. 4.3 The single indicator of the products should not be lower than the listed values. The median is macro
large
human
SC/T2015—2003
:, F5d
: 12.917
Table 3 Comparison table of each standard and species and the width of the whole nail t/oin
71, 227 1 32. -76
Note, the width of the nail is medium! Treatment
4.4 Inspection index
Whether there is micro-running disease (optional inspection, with zero day cancer shot this item is a mandatory inspection item). 5 Inspection method and judgment rules
5.1 Inspection object
Before the announcement of the species, it should be inspected.
5.2 Inspection items
Each sample shall be subject to individual difficulty, shape, disability and mortality, quality content, external requirements and presence of micro-disease. 5.3 Sampling and batching rules
5.3.1 Batch rules: multiple shipments are considered as discount. n, xbzxZ.net
.2 5
Unit is gram
5.3.2 Samples and counting: Randomly select samples three times. Each time, 1008 samples will be collected by the post station. 200 samples will be taken from each sample. Each time, 300 samples will be collected from the top three to the bottom 10 samples. The samples will be mixed and counted, and the percentage of deformed samples will be calculated separately. 13 seedlings are randomly collected from the collected products, and the whole product is measured. The average width of the whole product is calculated. The average width of the whole product is calculated. 5.3.3 The whole product is collected and the whole product is sold. The skin of each sample is examined under a microscope for at least 5 hours. The most detailed microscopic examination should be conducted at least 15 times. 5.4 Judgment rules 5.4.1 The quality requirements of the test should be met by the test. If microspores are found on the day of the test, the batch of seedlings and the test liquid are deemed unqualified. 5.4.2 If there is any disagreement on the number of sticky fruits, the efficacy can be negotiated or the new sample should be repeated. The relevant test results shall prevail. 6 Packaging and transportation
Dry transportation method
SC/T 7015-2GO3
Applicable to short-distance transportation of seedlings within a road width of more than 100 m. The bottom of the seedling transport box (33.5m × 3m × 4m) is covered with wetted wool or big leaves, and then placed in a storage room. The wetted wool or big leaves are finally put on the market. Each seedling weighs about 1kg. The temperature in the seedling transport box is between 18 and 23: 00. The total working time of transporting seedlings is from morning to night, 5. 2 Water transportation method
Water transportation is the main mode of transportation. The time of delivery should not exceed 12 hours. It is necessary to use a small-mouthed plastic barrel with polyethylene inside for inflatable transportation: each barrel can hold 41.75 kg of water, with an appropriate number of mesh pieces inside, and insert an inflatable bag (the air inside is taken out) for loading and transportation. Double-layer B sieve (7m×40m) can also be used to hold 2T of water, with a strength of 135g~200. Add oxygen (see 6.) and seal it. The water should be kept at 1%℃--23 salinity and reused. If the water is based on land, it can be appropriately transported. 6.3 Auxiliary water requirements for transportation
The water at the bottom of the transport should comply with the provisions of B11EC?.
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