GB/T 32755-2016 in English

SUPERSEDED

Large yellow croaker

Issued on:2016-06-14
Implemented on:2017-01-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $80.00
$78.00

Standard No:	GB/T 32755-2016
Document status:	SUPERSEDED
Superseded by:	GB/T 32755-2026 Large yellow croaker
Superseded on:	2026-09-01
Title in English:	Large yellow croaker
Title in Chinese:	大黄鱼
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2016-06-14
Implemented on:	2017-01-01
ICS Classification:	65.150-Fishing and fish breeding
Professional Classification:	GB-National Standard
Related Keywords:	large yellow croaker large yellow croaker germplasm large yellow croaker germplasm testing large yellow croaker germplasm detection standard formulation large yellow croaker
Related Topics:	GB/T 32755-2016 Rhubarb Mass Spectrum fish in english large yellow croaker Liquid Rhubarb lots of dead fish Ctenoid Emodin 80 rhubarb yellow glow GBT32755 GB/T 32755-2016 Large yellow croaker processing industry

《GB/T 32755-2016大黄鱼》由TC156（全国水产标准化技术委员会）归口，TC156SC2（全国水产标准化技术委员会海水养殖分会）执行，主管部门为农业农村部。

Introduction

Interpretation of GB/T 32755-2016 Large Yellow Croaker Germplasm Testing and Identification Standard

Background and Significance of Standard Formulation

Large Yellow Croaker (scientific name: Larichthys crocea) is an important economic fish in my country, with high breeding and scientific research value. The formulation of GB/T 32755-2016 "Large Yellow Croaker Germplasm Testing and Identification" aims to standardize the large yellow croaker germplasm testing methods and ensure the accurate identification and protection of germplasm resources.

Standard Drafting Process

The standard was jointly drafted by the Ningde Aquatic Technology Extension Station of Fujian Province, Shanghai Ocean University and other units, and was finally released in 2016 after multiple expert reviews and experimental verifications.

Standard dimensions	Main requirements	Test methods	Implementation suggestions
Morphological characteristics	The dorsal fin is continuous, and the ratio of the length of the caudal peduncle to the height is greater than 3 times.	It shall be implemented in accordance with the provisions of GB/T 18654.3.	It is recommended to use a trait measuring instrument for measurement.
Growth and reproductive characteristics	Female fish reach sexual maturity at 2 years old, and male fish reach sexual maturity at 1.5 years old.	Refer to GB/T 18654.4 and GB/T 18654.6.	It is recommended to monitor the relationship between body length and weight regularly (W = 0.022 2L².⁹⁴⁸⁸).
Genetic characteristics	The number of somatic chromosomes is 48, and the group type formula is: 48 t.	It is implemented in accordance with GB/T 18654.12 and GB/T 18654.13.	It is recommended to use isoenzyme electrophoresis analyzer for detection.

Actual application case of large yellow croaker germplasm detection

Taking the ratio of measurable traits of large yellow croaker shown in Table 1 as an example, the ratio of total length to body length is 1.1~1.3, indicating that this ratio varies to a certain extent among different individuals and needs to be comprehensively determined in combination with other indicators.

Comparative analysis of detection methods

Detection items	Reference standards	Main steps	Precautions
Morphological characteristics	GB/T 18654.3	Measure body length, body height and other indicators.	The accuracy of the measuring tool must be ensured.
Age identification	GB/T 18654.4	Age is determined by otolith analysis.	Requires professional personnel to operate.
Genetic testing	GB/T 18654.12, GB/T 18654.13	Chromosome karyotype analysis and isozyme electrophoresis.	Requires strict control of experimental conditions.

Implementation recommendations

To ensure the effective implementation of the standard, it is recommended that:

Establish a professional testing team and conduct regular training.
Equipped with necessary instruments and equipment, such as chromosome karyotype analyzer and isoenzyme electrophoresis analyzer.
Develop detailed testing process specifications to ensure data accuracy.

More samples: GB 18306-2015 GB 50021-2001(2009) NB/T 47013.2-2015

Sample only — not a preview of GB/T 32755-2016