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Subject: Aquatic Animal Health Management × Author: Verma, Ajay Kumar × End date: 2023 × Start date: 2023 ×
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    ThesisItemOpen Access
    Studies on bacterial diseases of cultured freshwater fishes
    (CCSHAU, Hisar, 2023-07) Verma, Ajay Kumar; Ahalavat, Shikha
    Present study was conducted to know the bacterial diseases of cultured freshwater fishes. It includes a survey in Hisar distinct of Adampur, Agroha, Barwala, Hisar1, Hisar 2, and Hansi 1 block and total 25 villages for ten months (February to December 2022) to assess pond fishery resources and the livelihood status of fish farmers. This indicates that a significant proportion of the study participants use Aquaculture drug for their fish culture (fig.9). The highest percentage of participants (52%) belongs to medium size farmer categories, followed by small (32%) and large (16%) farmers (Fig.8). The survey included 25 fish farmers from 25 village of Hisar (Haryana). In contrast, the vast majority of representing 88% reported no diseases among their fish farming. They are aware about fish diseases and other important parameter related to fish farming. Isolation of bacteria from fish to isolate bacteria from infected fish sample is collected from different parts of the fish, such as the gut, gill and infected regions. The study also highlights the potential of using 16S ribosomal RNA gene as a reliable marker for identifying bacterial species. The isolated bacteria were Aeromonas Enteropelogenes, Aeromonas Hydrophila, and Aeromonas veronii, Aeromonas hydrophila (isolate from Catal, Rohu, Common carp, and Silver carp). . All the bacteria was associated with the different types of diseases including tail rot, fin rot, dropsy and motile aeromonas septicemia etc. according to the symptoms observed on infected fish body.