Distribution and genotyping of infectious hematopoietic necrosis virus in farmed rainbow trout and autochthonous salmonids in North Macedonia

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 salmon...

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Main Authors: Aleksandar Traјchovski, Igor Djadjovski, Kiril Krstevski, Zagorka Popova-Hristovska, Martin Nikolovski, Ljubica Rashikj, Dimitar Bozinovski, Angela Grujovska, Niccolò Vendramin, Argelia Cuenca, Aleksandar Cvetkovikj
Format: Article
Language:English
Published: Ss.Cyril and Methodius University, Skopje 2024-03-01
Series:Macedonian Veterinary Review
Subjects:
Online Access:https://macvetrev.mk/LoadArticleContent?DOI=10.2478_macvetrev_2024_0013
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author Aleksandar Traјchovski
Igor Djadjovski
Kiril Krstevski
Zagorka Popova-Hristovska
Martin Nikolovski
Ljubica Rashikj
Dimitar Bozinovski
Angela Grujovska
Niccolò Vendramin
Argelia Cuenca
Aleksandar Cvetkovikj
author_facet Aleksandar Traјchovski
Igor Djadjovski
Kiril Krstevski
Zagorka Popova-Hristovska
Martin Nikolovski
Ljubica Rashikj
Dimitar Bozinovski
Angela Grujovska
Niccolò Vendramin
Argelia Cuenca
Aleksandar Cvetkovikj
author_sort Aleksandar Traјchovski
collection DOAJ
description 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.
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spelling doaj.art-a97212ff6b52491f8190c6ed5841d1502024-03-18T08:35:18ZengSs.Cyril and Methodius University, SkopjeMacedonian Veterinary Review1409-76211857-74152024-03-01471374310.2478/macvetrev-2024-0013Distribution and genotyping of infectious hematopoietic necrosis virus in farmed rainbow trout and autochthonous salmonids in North MacedoniaAleksandar Traјchovski0https://orcid.org/0000-0002-9891-6345Igor Djadjovski1https://orcid.org/0000-0002-4820-3590Kiril Krstevski2https://orcid.org/0000-0001-5453-3329Zagorka Popova-Hristovska3https://orcid.org/0009-0007-0521-7603Martin Nikolovski4https://orcid.org/0000-0002-1590-6660Ljubica Rashikj5https://orcid.org/0000-0002-9617-5811Dimitar Bozinovski6https://orcid.org/0000-0002-5102-4876Angela Grujovska7Niccolò Vendramin8https://orcid.org/0000-0002-9217-7887Argelia Cuenca9https://orcid.org/0000-0001-8596-1086Aleksandar Cvetkovikj10https://orcid.org/0000-0002-6582-7020Faculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, Lazar Pop-Trajkov 5-7, 1000 Skopje, North MacedoniaFaculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, Lazar Pop-Trajkov 5-7, 1000 Skopje, North MacedoniaFaculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, Lazar Pop-Trajkov 5-7, 1000 Skopje, North MacedoniaFaculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, Lazar Pop-Trajkov 5-7, 1000 Skopje, North MacedoniaFaculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, Lazar Pop-Trajkov 5-7, 1000 Skopje, North MacedoniaFaculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, Lazar Pop-Trajkov 5-7, 1000 Skopje, North MacedoniaFaculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, Lazar Pop-Trajkov 5-7, 1000 Skopje, North MacedoniaFood and Veterinary Agency, Treta Makedonska Brigada 20, 1000 Skopje, North MacedoniaDanmarks Tekniske Universitet Institut for Akvatiske Ressourcer, Kemitorvet, Building 202, 2800 Kgs. Lyngby, DenmarkDanmarks Tekniske Universitet Institut for Akvatiske Ressourcer, Kemitorvet, Building 202, 2800 Kgs. Lyngby, DenmarkFaculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, Lazar Pop-Trajkov 5-7, 1000 Skopje, North MacedoniaInfectious 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.https://macvetrev.mk/LoadArticleContent?DOI=10.2478_macvetrev_2024_0013novirhabdoviruscold-water aquaculturephylogeny
spellingShingle Aleksandar Traјchovski
Igor Djadjovski
Kiril Krstevski
Zagorka Popova-Hristovska
Martin Nikolovski
Ljubica Rashikj
Dimitar Bozinovski
Angela Grujovska
Niccolò Vendramin
Argelia Cuenca
Aleksandar Cvetkovikj
Distribution and genotyping of infectious hematopoietic necrosis virus in farmed rainbow trout and autochthonous salmonids in North Macedonia
Macedonian Veterinary Review
novirhabdovirus
cold-water aquaculture
phylogeny
title Distribution and genotyping of infectious hematopoietic necrosis virus in farmed rainbow trout and autochthonous salmonids in North Macedonia
title_full Distribution and genotyping of infectious hematopoietic necrosis virus in farmed rainbow trout and autochthonous salmonids in North Macedonia
title_fullStr Distribution and genotyping of infectious hematopoietic necrosis virus in farmed rainbow trout and autochthonous salmonids in North Macedonia
title_full_unstemmed Distribution and genotyping of infectious hematopoietic necrosis virus in farmed rainbow trout and autochthonous salmonids in North Macedonia
title_short Distribution and genotyping of infectious hematopoietic necrosis virus in farmed rainbow trout and autochthonous salmonids in North Macedonia
title_sort distribution and genotyping of infectious hematopoietic necrosis virus in farmed rainbow trout and autochthonous salmonids in north macedonia
topic novirhabdovirus
cold-water aquaculture
phylogeny
url https://macvetrev.mk/LoadArticleContent?DOI=10.2478_macvetrev_2024_0013
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