ArticleJournal of fish diseases2026
Diagnosis of Mycobacteriosis in Cultured Hybrid Tilapia (Oreochromis spp.) in Trinidad and Tobago.
Article in Journal of fish diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
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Authors and funding
8 authors.
Funding
Abstract
Mycobacteriosis is a significant disease in fish husbandry, with negative impacts on production facilities. Moreover, some Mycobacterium spp. that infect fish have zoonotic potential. Morbidity and mortality events at hybrid tilapia (Oreochromis spp.) farms in Trinidad and Tobago (T&T) associated with mycobacterial infections prompted a broader surveillance investigation across the hybrid tilapia farms within the country. Of the 168 specimens examined by polymerase chain reaction (PCR), 42% were Mycobacterium spp. positive. Among the mycobacteria-positive specimens, clinical signs (lethargy and loss of equilibrium) were observed in 96% (68 of 71), of which gross external abnormalities were evident in 7% (5 of 68) and internal lesions (granulomas) in 22% (15 of 68). Specimens that were mycobacteria-negative showed no clinical signs, gross abnormalities or lesions. Sequence analysis of a partial 723-bp rpoB (region V) fragment confirmed the presence of a consortium of uncharacterised Mycobacterium spp. in 18 hybrid tilapia specimens. These findings suggest that potentially novel species are circulating within and causing clinical and subclinical disease in the local farmed hybrid tilapia population in T&T. The study also revealed that over the period 2020-2021, 75% (9 of 12) of the major hybrid tilapia production facilities in T&T were infected with mycobacteria. This represents the first documentation of a piscine mycobacteriosis outbreak in hybrid tilapia in the Caribbean.
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