T/DTCJ 0001-2021 Active Group standards

T/DTCJ 0001-2021 Geographical Indication Certification Mark, Dongtai Silkworm Cocoon

T/DTCJ 0001-2021

Publish Date: 2021-01-21 Implement Date: 2021-01-21 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/DTCJ 0001-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Beekeeping and sericulture

ICS Name: Natural fibers

Publish Date: 2021-01-21

Implement Date: 2021-01-21

Scope

Scope: This standard specifies the terms and definitions of Dongtai silkworm cocoons, the protection scope of the geographical indication certification trademark, production conditions, requirements, experimental methods, inspection rules, and requirements for packaging, marking, transportation, and storage. This standard applies to products registered and approved by the China Intellectual Property Administration to use the geographical indication certification trademark, namely Dongtai silkworm cocoons. Main technical content: 1. Production conditions and environmental requirements: North Asia subtropical maritime climate with distinct seasons, moderate temperatures, sufficient sunlight, and abundant rainfall. 2. Soil characteristics: Night-tide soil with a sandy texture, a salt content of <2‰, and an organic matter content of >14‰, with a pH value of 4.5-9.0. 3. Mulberry tree cultivation: Select high-quality local mulberry varieties such as Yugan-1 and Hushan 32. Plant in winter or spring, with a planting density of 1,000-1,200 seedlings per 667 m2. Train the trees in a compact style, with a trunk height of 40-50 cm and 8-10 effective branches per tree. 4. Fertilization: Follow the requirements of DB32/T 354-2007. 5. Silkworm rearing: Use high-quality silkworm breeds with one or two instar development, such as Jingsong × Haoyue, Suhao × Zhongye (resistant), and Huakang No. 3. 6. Rearing periods: Spring silkworms from early May to early June, and autumn silkworms from early September to late October. 7. Leaf conditions: Use mature leaves for young silkworms and slightly older but not too tender leaves for strong silkworms. 8. Silkworm feeding: - Spring silkworms: Remove the silk core to promote leaf maturity. - Young silkworms: Raise in a centralized manner using automatic heating and humidifying devices and plastic energy-saving enclosures, with three sleeps over 10 days to ensure uniform and robust development. - First instar: