T/NTZX 005-2020 Active Group standards

T/NTZX 005-2020 National Geographical Indicator Products - Technical Specification for Cultivation of Dong Nizhuo Taro Paddy Fields

Publish Date: 2020-12-01 Implement Date: 2020-12-15 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/NTZX 005-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Marine aquaculture and its products

ICS Name: Fishing and aquaculture

Publish Date: 2020-12-01

Implement Date: 2020-12-15

Scope

Main technical content: The breeding site should be far away from pollution sources, located in the lower zone of the high tide and the middle and upper zones of the middle tide. The beach should be flat with stable sediment, either clay or sandy clay, with few predators and good growth of benthic algae, and a high content of organic debris. The enclosure net should be made of 18-20 mesh polyethylene or ordinary plastic gauze net, with a net height of 30-40 cm. Within 1 m of the enclosure net, a water-retaining ring ditch about 1 m wide should be dug to prevent mud snails from escaping. After catching the seedlings, they should be rinsed clean with seawater to remove impurities. The shell should be intact, with a slightly yellow shell color being ideal. The foot should be able to flexibly extend and retract, and should not be contaminated. It is advisable to choose pure mud snail seedlings and avoid mixing them with Borocassidulina (mud snails and Borocassidulina are very similar in appearance).