نتایج جستجو برای: litopenaeus vannamei hufa

تعداد نتایج: 2707  

2013
Renata Albuquerque

Objective. The present study aimed to investigate the presence of vibrios in the hepatopancreas of cultured shrimp. Materials and methods. Vibrios from the hepatopancreas of fifteen samples of five specimens each, of apparently healthy Pacific white shrimp (Litopenaeus vannamei) were isolated, identified and quantified. Results. The vibrio density ranged from 430 to 2,400 MPN g-1 (rs MPN cm-1=-...

2017
Xuan Dong Dexi Bi Hailiang Wang Peizhuo Zou Guosi Xie Xiaoyuan Wan Qian Yang Yanping Zhu Mengmeng Chen Chengcheng Guo Zhen Liu Wenchao Wang Jie Huang

Acute hepatopancreatic necrosis disease (AHPND) is a severe shrimp disease originally shown to be caused by virulent strains of Vibrio parahaemolyticus (VPAHPND). Rare cases of AHPND caused by Vibrio species other than V. parahaemolyticus were reported. We compared an AHPND-causing V. campbellii (VCAHPND) and a VPAHPND isolate from the same AHPND-affected pond. Both strains are positive for the...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2007
P D Freitas M R Calgaro P M Galetti

Genetic variation within and between fifteen closed broodstock lines of the Pacific white shrimp Litopenaeus vannamei, reared at different hatcheries in the Brazilian coast, was assessed by RAPD analysis. Fifty two polymorphic loci were identified when a set of five decamer primers was used in PCR. The genetic diversity analysis within lines evidenced genetic variation loss probably related to ...

2018
Cairé Barreto Jaqueline da Rosa Coelho Jianbo Yuan Jianhai Xiang Luciane Maria Perazzolo Rafael Diego Rosa

Crustins form a large family of antimicrobial peptides (AMPs) in crustaceans composed of four sub-groups (Types I-IV). Type II crustins (Type IIa or "Crustins" and Type IIb or "Crustin-like") possess a typical hydrophobic N-terminal region and are by far the most representative sub-group found in penaeid shrimp. To gain insight into the molecular diversity of Type II crustins in penaeids, we id...

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