{"id":753,"date":"2016-07-30T20:00:42","date_gmt":"2016-07-30T13:00:42","guid":{"rendered":"http:\/\/apanano.com\/?p=753"},"modified":"2023-02-24T17:15:34","modified_gmt":"2023-02-24T10:15:34","slug":"tieu-chuan-chon-tom-su-giong","status":"publish","type":"post","link":"https:\/\/apanano.com\/en\/technical-support\/aquaculture\/tieu-chuan-chon-tom-su-giong\/","title":{"rendered":"Criteria for selecting hatchery Black Tiger Shrimp"},"content":{"rendered":"

Quality of hatchery shrimp is a very important factor that can influence yield of the harvest as well as can increase resistance of shrimp against diseases.<\/strong><\/em><\/p>\n

Criteria for selecting hatchery shrimp:<\/strong>
\n– They must be same size and around 12mm.
\n– Their abdomen has 6 sections; if these sections are long, shrimp will grow fast. Healthy shrimps must have tail and beard shaped V, and two beard close together as V angle.
\n– Legs near tail should open widely when swimming; distance between 4 legs should be as far as possible.
\n– No fungi, bacteria or protozoa on legs, abdomen, tail, shell and gill of shrimp. These objects will make shrimp asphyxiated and unable to molt shell.
\n– Bright color, thin shell, grey-black color or black color, balance between head and body.<\/p>\n

\"Criteria
Criteria for selecting hatchery Black Tiger Shrimp<\/em><\/figcaption><\/figure>\n

– When stirring water, shrimps will not be drifted in twist but swim opposite direction. If there are 10 of 200 shrimp drifted in twist, it means the hatchery shrimps weak.
\n– Test with phormon: use 1ml phormon with 10 liters of water; if 5 of 150 shrimps die, this is healthy hatchery shrimps.
\n– Before releasing shrimp to pond, must bath shrimp to ensure they are free from bacteria. Or still feed shrimp in hatchery pond in 15-20 days, then refine again before start to feed in soil pond.
\n– Best selection is shrimps like to swim opposite direction to twist.<\/p>\n

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