Year: 2024
Type: Journal Article
Title: Distribution and Genotyping of Infectious Hematopoietic Necrosis Virus in Farmed Rainbow Trout and Autochthonous Salmonids in North Macedonia
Author: Traјchovski, Aleksandar
Author: Dјadјovski, Igor
Author: Krstevski, Kiril
Author: Hristovska, Zagorka Popova
Author: Nikolovski, Martin
Author: Rashikj, LJubica
Author: Bozinovski, Dimitar
Author: Grujovska, Angela
Author: Vendramin, Niccolò
Author: Cuenca, Argelia
Author: Cvetkovikj, Aleksandar
Abstract: Infectious hematopoietic necrosis (IHN) is a common disease in the intensive production of salmonids. The IHN virus (IHNV) was isolated for the first time in North Macedonia in 2018. This study aimed to investigate the distribution and genotype of IHN in farmed rainbow trout and autochthonous salmonid fish in North Macedonia following the first detection. The samples were collected from 47 trout farms. Trout fry with or without clinical signs of IHN were selected as individual samples. Kidney, spleen, and heart were taken from each fish during the dissection. Three pooled samples were collected from each farm. A total of 141 pooled samples were collected: Rainbow trout (Oncorhynchus mykiss) n=127, Macedonian trout (Salmo macedonicus) n=11, and Ohrid trout (Salmo letnica) n=3. The virus was detected in 43 samples (30.50%): rainbow trout (n=40), Macedonian trout (n=2), and Ohrid trout (n=1). There were 18 (38.30%) positive fish farms. The MAKIHNV1 isolate from 2018 (MN641902) and the newly isolated virus shared a similarity of >99 and were placed in clade E-1 of European genogroup E. The IHN has spread throughout the country and is also present in the autochthonous salmonids.
Publisher: Walter de Gruyter GmbH
Relation: Macedonian Veterinary Review
Identifier: oai:repository.ukim.mk:20.500.12188/29842
Identifier: http://hdl.handle.net/20.500.12188/29842Identifier: 10.2478/macvetrev-2024-0013
Identifier: https://www.sciendo.com/pdf/10.2478/macvetrev-2024-0013Identifier: 0
Identifier: 0
