no-1

Current status of diseases on some fish species raised in Lao Cai in 2022

Authors:
May Le Thi, Trieu Nguyen Duy, Hanh Nguyen Thi, Nguyen Nguyen Thi, Binh Phan Trong, Quan Nguyen Minh, Lua Dang Thi, Vinh Truong Thi Thanh, Chung Nguyen Thi Kim, Hanh Truong Thi My
Pages:
100
View:
632
Position:
4/4
Download:
232
The research was conducted from May to December 2022 in Lao Cai province. A total of 192 fish samples were collected from the traditional cultured fish group and cold-water cultured fish group. Freshoscopy method has been applied for fungal indicators, isolated culture for bacteria and PCR technique for virus indicators. The results showed that fungal agents were detected with a high infection rate in both groups of traditionally cultured fish (83.3%) and cold-water cultured fish (66.7%); Among them, more than 90% are fungus carrying Branchiomyces sp.; The remaining is Dermocystidium sp. and Aphanomyces sp, the recorded period is from May to December. Meanwhile, bacterial causes were found to be lower, infection rate of bacterial species Edwardsiella sp.; Streptococcus sp. and Aeromonas sp. recorded between 20 and 35%, especially in September and October, the infection rate is lower than other months. To limit the damage, water needs to be treated before flowing into the pond/farming...
The research was conducted from May to December 2022 in Lao Cai province. A total of 192 fish samples were collected from the traditional cultured fish group and cold-water cultured fish group. Freshoscopy method has been applied for fungal indicators, isolated culture for bacteria and PCR technique for virus indicators. The results showed that fungal agents were detected with a high infection rate in both groups of traditionally cultured fish (83.3%) and cold-water cultured fish (66.7%); Among them, more than 90% are fungus carrying Branchiomyces sp.; The remaining is Dermocystidium sp. and Aphanomyces sp, the recorded period is from May to December. Meanwhile, bacterial causes were found to be lower, infection rate of bacterial species Edwardsiella sp.; Streptococcus sp. and Aeromonas sp. recorded between 20 and 35%, especially in September and October, the infection rate is lower than other months. To limit the damage, water needs to be treated before flowing into the pond/farming tank, periodically supplement vitamin C or multivitamins to increase the fish's resistance, well control environmental factors, especially temperature, amount of ammonia and amount of organic matter in the pond.
Relate
Species composition in the Terapontidae family (Centrarchiformes) in estuaries of Thanh Hoa province
Thu Trịnh Thị, nam Nguyễn Thành, Thảo Hoàng Ngọc
Volume 53, Issue 1A, 03/2024
Study on the effect of temperature on the operation of the Panasonic NCR-18650b electric vehicle battery
Anh Nguuyen Phi Cuong, Hieu Le Duc, Minh Luong Ngoc
Volume 53, Issue 1A, 03/2024
The effects of tray density and care regimes on growth and survival rate of snout otter clam
Cao Giang Trường, Le Linh Thi, Tran Muu The, Tran Thuy Thi, Nguyen Thuy Thi Bien, Le Khoi Van, Nguyen Tuan Duc, Tran Minh Thi Nguyet, Thi Lua Dang, Cao Hanh Van, Hoang Son Nhat, Nguyen Phuong Thi Dieu, Nguyen Cuong Manh, Vu In Van, Vu Sang Van, Thai Binh Thanh, Vu Tam Cong, Le Dung Viet, Trinh Khuyen Dinh
Volume 53, Issue 1A, 03/2024
Network community detection based on the angle between two vectors
Trung Lai Van, Nguyễn Giang Thị Thanh
Volume 53, Issue 1A, 03/2024

Vinh University journal of science

Tạp chí khoa học Trường Đại học Vinh

ISSN: 1859 - 2228

Governing body: Vinh University

  • Address: 182 Le Duan - Vinh City - Nghe An province
  • Phone: (+84) 238.3855.452 - Fax: (+84) 238.3855.269
  • Email: vinhuni@vinhuni.edu.vn
  • Website: https://vinhuni.edu.vn

 

License: 163/GP-BTTTT issued by the Minister of Information and Communications on May 10, 2023

Open Access License: Creative Commons CC BY NC 4.0

 

CONTACT

Editor-in-Chief: Assoc. Prof., Dr. Tran Ba Tien
Email: tientb@vinhuni.edu.vn

Deputy editor-in-chief: Dr. Phan Van Tien
Email: vantienkxd@vinhuni.edu.vn

Sub-Editor: Dr. Do Mai Trang
Email: domaitrang@vinhuni.edu.vn

Editorial assistant: Msc. Le Tuan Dung, Msc. Phan The Hoa, Msc. Pham Thi Quynh Nga, Msc. Tran Thi Thai

  • Address: 4th Floor, Executive Building, No. 182, Le Duan street, Vinh city, Nghe An province.
  • Phone: (+84) 238-385-6700 | Hotline: (+84) 97-385-6700
  • Email: editors@vujs.vn
  • Website: https://vujs.vn

img