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GB 21045-2007 English PDF

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GB 21045-2007: [GB/T 21045-2007] Largemouth bass
Status: Valid
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB 21045-2007209 Add to Cart 3 days [GB/T 21045-2007] Largemouth bass Valid

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Basic data

Standard ID: GB 21045-2007 (GB21045-2007)
Description (Translated English): [GB/T 21045-2007] Largemouth bass
Sector / Industry: National Standard
Classification of Chinese Standard: B52
Classification of International Standard: 65.150
Word Count Estimation: 7,767
Date of Issue: 2007-06-26
Date of Implementation: 2007-10-01
Quoted Standard: GB/T 18654.1; GB/T 18654.2; GB/T 18654.3; GB/T 18654.12; SC 2055
Regulation (derived from): Chinese National Standards Bulletin 2007 No. 7 (No. 107 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Chinese standard relates to Largemouth bass provides the main form of structural characteristics, growth and reproduction, genetic characteristics and detection methods. For largemouth bass germplasm detection and identification.

GB 21045-2007: [GB/T 21045-2007] Largemouth bass

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Largemouth bass ICS 65.150 B52 National Standards of People's Republic of China Largemouth bass Posted 2007-06-26 2007-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Chapter 4 of this standard are mandatory, the rest are recommended. The standard proposed by the People's Republic of China Ministry of Agriculture. This standard by the National Standardization Technical Committee on Fisheries freshwater aquaculture subcommittee. This standard was drafted. Chinese Academy of Fishery Sciences Pearl River Fisheries Research Institute. The main drafters of this standard. Luojian Ren, Zheng Guangming, Zhu Xinping, Liu Yihui, leaf star. Largemouth bass

1 Scope

Genetic characteristics and detection methods. This standard applies to largemouth bass germplasm detection and identification.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 18654.1 Inspection of germplasm for cultured fishes - Part 1. Inspection Rules GB/T 18654.2 Inspection of germplasm for cultured fishes - Part 2. Sampling Method GB/T 18654.3 Inspection of germplasm for cultured fishes - Part 3. Determination of Characters GB/T 18654.12 Inspection of germplasm for cultured fishes - Part 12. karyotyping SC2055 vannamei

3 Name and Category

3.1 Name 3.2 Alias California perch. 3.3 Classification Location

4 main morphological structure characteristics

4.1 External morphology 4.1.1 Outline Body fusiform, side flat, back thicker. Gape large, oblique fissure, retractable jaw, maxilla extending posteriorly to the eye. Snout to the base of the caudal fin row Lash strip-shaped spots. Gill cover has a radial spots 3. Between dorsal fin spines and soft fin portion has a small notch; lateral line complete, along the body Central dorsal side and parallel to the rear end of a few stretching over the tail fin. The first outer gill arch gill rakers developed, shaped like a crescent-shaped, in addition to the back of the gill rakers, the other three Surfaces are covered with down jagged bone protrusion of the fifth gill arch bone degenerate into a short rod, no gill and gill rakers. Ctenoid body is small. Back to green Olive, yellow-belly white. Shallow concave caudal fin. Largemouth bass shape shown in Figure 1. Figure 1 largemouth bass outline drawing 4.1.2 Number of Characters 4.1.2.1 Fin Dorsal fin. D. Ⅷ ~ Ⅹ, Ⅰ-11 ~ 14. Anal fin. A. Ⅲ-9 ~ 12. 4.1.2.2 lateral line scales Scale formula. 55 7 ~ 914 ~ 17-A77 4.1.2.3 gill rakers The outside left of the first gill arch gill rakers. 6-7. 4.1.3 measurable character Artificial breeding conditions for the lower body length 223mm ~ 298mm, weight 305.2g ~ 662.8g individuals were found, which may be more than the amount of characters Values in Table 1. Table 1 Measured measurable character ratio Length/body height length/head length body length/caudal peduncle length body length/long tail height head/snout length head length/eye diameter head length/eye spacing caudal peduncle length/tail height 2.878 ~ ~ 3.4843.983 3.7172.879 9.9286.012 ~ ~ ~ 14.1032.975 ~ 5.4944.866 4.5701.063 6.7131.548 ~ ~ 2.348 4.2 Internal structural features 4.2.1 swim bladder A swim bladder chamber. Long cylindrical. 4.2.2 teeth Tapered serrations, sharper. 4.2.3 vertebrae Total spine. 30 to 32. 4.2.4 peritoneum Peritoneal white.

5 growth and reproduction

5.1 Growth Artificial breeding conditions for the lower body length 106mm ~ 298mm, weight 24.2g ~ 662.8g individuals were measured, and its length and weight Table 2. Table 2 Found body length and weight Length/mm Range 106 ~ 147 223 ~ 278 264 ~ 298 Mean 127 ± 10.5 252 ± 15.2 276 ± 8.9 Weight/g The range of 24.2 - 66.9 305.2 662.8 ~ ~ 473 460 Mean 44.8 ± 10.5 398.3 ± 46.7 515.1 ± 48.5 5.2 Reproduction 5.2.1 The age of sexual maturity Artificial breeding conditions, females, males are 1+ age. 5.2.2 spawner Producing sticky eggs mature once a year, spawning a batch. 5.2.3 fecundity Absolute fecundity natural state. 4 × 104 Li ~ 10 × 104 tablets. Under conditions of artificial breeding broodstock individual fecundity in Table 3. Table fecundity broodstock individuals under artificial breeding condition 3 Length/mm 223 ~ 298 Absolute fecundity/grain 51094 ± 18768 Relative fecundity/(grains/g) 123 ± 29

6 genetic characteristics

Genetic characteristics 6.1 Cell Somatic chromosome number. 2 = 46 shape. Karyotype formula. 2m + 2st + 42t. Chromosome arm number (NF). 48. Largemouth bass karyotype See Figure 2. Figure 2 largemouth bass karyotype
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