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Anti-parasitic activity of garlic (Allium sativum) and onion (Allium cepa) extracts against Dactylogyrus spp. (Monogenean) in Nile tilapia (Oreochromis niloticus): Hematology, immune response, histopathological investigation, and inflammatory cytokine genes of gills.
BMC Vet Res
July 2024
National Institute of Oceanography and Fisheries (NIOF), Al Qanater Al Khairia, 13723, Egypt.
Background: Gills monogenean infestation causes significant mortalities in cultured fishes as a result of respiratory manifestation. Medicinal plants are currently being heavily emphasized in aquaculture due to their great nutritional, therapeutic, antimicrobial activities, and financial value.
Methods: The current study is designed to assess the effect of garlic (Allium sativum) and onion (Allium cepa) extracts as a water treatment on the hematological profile, innate immunity, and immune cytokines expression besides histopathological features of gills of Nile tilapia (Oreochromis niloticus L.
Microcotylidae (Monogena) parasites of snappers (Perciformes: Lutjanidae) collected from the northeast coast of Brazil.
An Acad Bras Cienc
December 2023
Universidade Tiradentes (UNIT), Instituto de Tecnologia e Pesquisa (ITP), Av. Murilo Dantas, 300, Farolândia, 49032-490 Aracaju, SE, Brazil.
Monogeneans are a diverse group of flatworms, being ectoparasites of marine and freshwater fish, with great morphological and ecological variety. Analyzes of monogenetics in fish with great habitat diversity such as snappers are scarce in the literature, which already emphasizes the need for an update in this regard. The presente study found, morphologically characterized and mapped the geographic distribution and in known hosts the species Microcotyloides incisa and Microcotyloides impudicus, describing the first occurrence of these monogeneans for South America and in new hosts.
View Article and Find Full Text PDFDactylogyrus extensus and Pseudomonas fluorescens dual infection in farmed common carp (Cyprinuscarpio).
Microb Pathog
December 2022
Fish Diseases Department, Animal Health Research Institute AHRI, Agriculture Research Center ARC, Kafrelsheikh, 12619, Egypt. Electronic address:
Article Synopsis
- Dactylogyrus extensus and Pseudomonas fluorescens are significant pathogens in Cyprinus carpio aquaculture, leading to serious health issues and economic losses.
- In spring 2021, farmed C. carpio exhibited high mortality rates, displaying symptoms like anorexia and respiratory distress, linked to poor water quality with low oxygen and high ammonia levels.
- A study identified D. extensus in all tested fish and found P. fluorescens in over half of the samples, revealing antibiotic resistance and the urgency for effective management strategies to safeguard fish health.
Parasites of commercially important fish from Lake Naivasha, Rift Valley, Kenya.
Parasitol Res
March 2014
Department of Evolutionary Biology, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria.
In Lake Naivasha, the common carp Cyprinus carpio L. 1758 was accidentally introduced from fish farms adjacent to River Malewa in 1999 and now forms the bulk of the total fish caught. Since its introduction, no study has been made on its parasitic community nor are there any reports on ectoparasites from other fish species in this lake to the best of our knowledge.
View Article and Find Full Text PDFThe purpose of this study has been to carry out a preliminary parasitological analysis of sturgeon specimens in the context of the presence of external parasites, and to determine their possible influence on the health of the fish. The examination of external parasites was performed on specimens of A. oxyrinchus oxyrinchus captured from an open system pond (the Fish Farm in Kuźniczka, Poland) and from the St John River (Canada), in the spring and summer of 2008.
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