GB/T 19782-2023Chinese prawn (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces GB/T 19782-2005 "Chinese Shrimp". Compared with GB/T 19782-2005, except for structural adjustments and editorial changes, In addition, the main technical changes are as follows:

a) Changed the "classification status" (see 4.2, 2.2 of the 2005 version);

b) Added the image indexing number in "External Form" (see 5.1);

c) "Measurable traits" have been changed (see 5.2, 3.2 of the 2005 version);

d) The "Broodstock" section in "Growth and Reproduction" has been deleted (see 4.2.1 of the 2005 edition);

e) The karyotype formula and karyotype diagram in "Cytogenetic Characteristics" have been deleted (see 5.1 of the 2005 edition)

f) "Biochemical genetic characteristics" is deleted (see 5.2 of the 2005 version);

g) "Isoenzyme analysis" was deleted (see 6.2 of the 2005 edition);

h) Added "molecular genetic characteristics" (see Chapter 8);

i) Changed the "Detection Method" (see Chapter 9, Chapter 6 of the 2005 edition);

j) Added "judgment rules" (see Chapter 10);

k) The method for detecting cytogenetic characteristics has been changed (see Appendix B);

l) Delete "preparation of isoenzyme staining solution and required solutions" (see Appendix C of the 2005 version);

m) Added "mitochondrial 16SrRNA sequence analysis" (see Appendix C).

1 Scope

Classification, stipulates the main morphological and structural characteristics, growth and reproduction characteristics, cytogenetic characteristics and molecular genetic characteristics, and describes the corresponding detection, the measurement method and the judgment rules are given.

This document is applicable to the identification and testing of Chinese shrimp germplasm.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 18654.2 Inspection of cultured fish germplasm Part 2: Sampling methods

GB/T 18654.12 Testing of cultured fish germplasm Part 12: Karyotype analysis

GB/T 22213 Aquaculture Terminology

SC/T 1102 Determination of shrimp traits

3 Terms and definitions

The terms and definitions defined in GB/T 22213 apply to this document.

4 Scientific name and classification

5 Main morphological and structural characteristics