What are biology characteristics of Tra and Basa fish?

Pangasius 26 Q&A 00:00 01/01/1900

 

Pangasius hypophthalmus/Pangasianodon hypophthalmus  - Tra

Tra is a fish with long body, grey black back, little white belly, big­ mouth and two pairs of barbells. The raising period varies from 6 to 8 months to reach the weight of 0,8 - 1,3 kg/fish. Tra fish mainly live in fresh water but also in blackish water (with salinity percent of 7 - 10), can bear in alum water (with pH level > 5), in hot tempreture up to 39oC but be easily died at temperature below 15oC. The volume of red corpuscles in Tra fish are much more than other fish. As the fish has an accessory respiratory organ and can also breathe with air bladder and skin, they can bear in the water lacking dissolved oxygen. The oxygen consumption and activity level of Tra fish is three times lower that the ones of a silver barb. 

Pangasius bocourti - Basa

Basa is also a fish with long body. The standard length of the body is equivalent to 2.5 times of the height of the body. It has a short, slight round and flat head, a wide forehead and a small mouth of which the width is less than 10% of the standard length and which is lightly askew the snout. Its teeth of the lower jaw are big and wide and can be seen when the mouth is close. It has two pair of barbells, the length of the pair at upper jaw is equal to the one of the head, and the whiskers are long to or over the end of pectoral fin. It has big eyes, belly and spleen, the back side of the body is flat, the back and the head have the grey green colour, and the belly has the silver-white colour. The height of the tail-end is more than 7% of the standard length of the body. The raising period varied from 10 to 13 months to reach commercial weight of 1 - 1.5 kg/fish.

As Basa fish has no accessory respiratory organ and requires an oxygen level higher than the one of Tra fish, it can poorly bear in water with low dissolved oxygen level. Basa mainly live in freshwater, can lightly bear in brackish water and in alum water with pH level > 5,5. The supported temperature is from 18 - 40oC and the minimum oxygen level is about 1,1 mg/litre. In general, Basa fish can not support in severe environmental conditions as much as Tra fish. Therefore, they are mainly raised in floating cage.

Bạn đang đọc bài viết What are biology characteristics of Tra and Basa fish? tại chuyên mục Pangasius 26 Q&A của Hiệp hội VASEP

TIN MỚI CẬP NHẬT

Vietnam’s seafood exports in January 2025: Remarks and Forecast

 |  09:21 21/02/2025

(seafood.vasep.com.vn) The outlook for Vietnam’s seafood exports remains positive, with a strong focus on maintaining growth in key markets like China and the U.S., while diversifying into new regions. As global trade policies continue to evolve, adaptability and strategic planning will be key to navigating the challenges ahead.

Vĩnh Hoàn posts record profit in Q4 2024, highest in 6 quarters

 |  08:50 19/02/2025

(seafood.vasep.com.vn) Thanks to improved pangasius prices and higher production, Vĩnh Hoàn's after-tax profit in Q4 2024 reached VND 440 billion, a 4.8-fold increase compared to the same period last year.

Which market will be the top importer of vietnam’s pangasius in 2025?

 |  09:18 17/02/2025

(seafood.vasep.com.vn) According to data from Vietnam’s Customs, in Q4 2024, Vietnam’s pangasius exports to China & Hong Kong reached USD 163 million, a 17% increase compared to the same period in 2023, with consistent growth across all months. The total value of pangasius exports to China & Hong Kong for 2024 reached USD 581 million, a 1% increase over the previous year.

Vietnam’s seafood exports expected to hit 11 billion USD in 2025

 |  09:13 13/02/2025

Vietnam’s seafood exports are projected to maintain strong growth this year, potentially reaching 11 billion USD.

Vietnam’s surimi exports make a remarkable turnaround in the last quarter of 2024

 |  08:47 11/02/2025

(seafood.vasep.com.vn) In the final quarter of 2024, Vietnam’s surimi and fish cake exports showed consistent growth over the last three months. For the entire year 2024, exports of these products reached USD 298 million, down 2% compared to 2023. However, the final quarter saw more promising signs for the surimi and fish cake export sector, with some markets experiencing notable growth, such as Thailand, China, and Taiwan. Particularly, exports to Taiwan, which had seen continuous declines in the previous two quarters, surged by 301% in this quarter.

What will drive Vietnam's pangasius exports in 2025?

 |  09:35 07/02/2025

(seafood.vasep.com.vn) Another year of pride for Vietnam's pangasius exports has concluded, reaching over USD 2 billion and contributing 20% to Vietnam's total seafood export turnover.

Vietnam secures top five spot in Singapore's seafood market

 |  08:39 06/02/2025

Vietnam maintained its position as the fifth-largest seafood exporter to Singapore for 12 consecutive months, surpassing Japan for the first time in 2024, amid the intensifying competition in this market.

Vietnam's canned tuna exports still increase by 17% in 2024

 |  08:59 05/02/2025

(seafood.vasep.com.vn) Despite facing numerous challenges in the second half of the year, Vietnam's canned tuna exports concluded 2024 with a 17% increase compared to 2023, reaching USD 299 million. To maintain this growth momentum in 2025, the canned tuna production and export sector requires coordinated efforts from all stakeholders.

Seafood sector profits forecast to surge in 2025

 |  11:10 31/01/2025

SSI forecasts a 28% year-on-year increase in after-tax profit attributable to the parent company of Vinh Hoan Corporation (VHC), driven by a gradual improvement in average selling prices from USD 3.15/kg in 2024 to USD 3.30/kg (+5%) in 2025. An Giang Fisheries Import-Export Joint Stock Company (ANV)'s after-tax profit attributable to the parent company is projected to rebound by 104%.

Bac Lieu aims for 1.2 billion USD in shrimp exports in 2025

 |  09:11 24/01/2025

In 2025, the Mekong Delta province of Bac Lieu aims to earn 1.2 billion USD from exporting shrimp, one of the key export products that accounts for over 95% of its total export value.

VASEP - HIỆP HỘI CHẾ BIẾN VÀ XUẤT KHẨU THỦY SẢN VIỆT NAM

Chịu trách nhiệm: Ông Nguyễn Hoài Nam - Phó Tổng thư ký Hiệp hội

Đơn vị vận hành trang tin điện tử: Trung tâm VASEP.PRO

Trưởng Ban Biên tập: Bà Phùng Thị Kim Thu

Giấy phép hoạt động Trang thông tin điện tử tổng hợp số 138/GP-TTĐT, ngày 01/10/2013 của Bộ Thông tin và Truyền thông

Tel: (+84 24) 3.7715055 – (ext.203); email: kimthu@vasep.com.vn

Trụ sở: Số 7 đường Nguyễn Quý Cảnh, Phường An Phú, Quận 2, Tp.Hồ Chí Minh

Tel: (+84) 28.628.10430 - Fax: (+84) 28.628.10437 - Email: vasephcm@vasep.com.vn

VPĐD: số 10, Nguyễn Công Hoan, Ngọc Khánh, Ba Đình, Hà Nội

Tel: (+84 24) 3.7715055 - Fax: (+84 24) 37715084 - Email: vasephn@vasep.com.vn

© Copyright 2020 - Mọi hình thức sao chép phải được sự chấp thuận bằng văn bản của VASEP

DANH MỤC