Aeromonas hydrophila in aquaculture

Publish your research: find out more about a new collection focusing on understanding mechanisms of inflammation and the histopathological changes induced by the pathogen
Aeromonas hydrophila in aquaculture
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BioMed Central
BioMed Central BioMed Central

Therapeutic evaluation of papaya (Carica papaya) leaf extract for disease management in Indian major carp, Labeo rohita infected with Aeromonas veronii - Aquaculture Science and Management

Background The emergence of antibiotic-resistant pathogens in aquaculture necessitates the exploration of sustainable alternatives for disease management. This study investigates the antibacterial and therapeutic efficacy of dietary administered Carica papaya leaf extract (PLE) against Aeromonas veronii in Labeo rohita, a key species in Indian freshwater aquaculture. Results Among aqueous, ethanolic, and methanolic extracts of papaya leaf, only the methanolic extract exhibited significant in vitro antibacterial activity, with a minimum inhibitory concentration (MIC) of 12.5 mg mL⁻¹ for A. veronii. Acute toxicity assessment revealed median lethal concentration (LC₅₀) value of 160.69 mg L⁻¹ for PLE in L. rohita. The median lethal dose (LD₅₀) for A. veronii was determined as 1.4 × 10⁴ CFU (Colony-Forming Units) mL⁻¹. In an in vivo trial, fish were administered PLE-supplemented diets at concentrations of 25, 50, 75, and 100 mg g⁻¹, at a feeding rate of 2% of body weight per day, following infection. Hematological and immune-biochemical parameters, including total erythrocyte count, hemoglobin, total leucocyte count, C-reactive protein, protein, albumin, globulin, liver enzymes (serum glutamic-oxaloacetic transaminase - sGOT, serum glutamic pyruvic transaminase – sGPT and alkaline phosphatase - ALP), and catalase activity, were evaluated. Results showed significant recovery in PLE-fed groups, particularly at lower doses of 50 mg g−1, indicating improved immune response, reduced oxidative stress, and restored liver function. Conclusion The findings suggest that methanolic PLE is a promising phytotherapeutic agent for managing A. veronii infections, supporting its use in aquaculture disease management.

Springer Nature Collections are curated groups of articles within a journal that provide highly focused exploration of specific themes and emerging topics to enhance the visibility and impact of research. By contributing to a Collection, you can benefit from increased visibility, meaningful academic connections, and ⁠broader impact. This collection - from the journal Aquaculture Science and  Management - focuses on the aquatic pathogen Aeromonas hydrophila.

Aeromonas hydrophila is a pathogen affecting a wide range of aquatic species, leading to severe economic losses and posing challenges to food security. Understanding the mechanisms by which Aeromonas hydrophila induces inflammation, alters intestinal morphology, and triggers antioxidant responses is essential for developing effective management strategies. As aquaculture continues to expand globally, the need for sustainable practices is urgent. The "Impact of Aeromonas hydrophila on Aquaculture: Inflammation, Intestinal Changes and Antioxidant Responses" collection in Aquaculture Science and Management focuses on this issue and invites contributions to the field.  Topics of interest include but are not limited to:

- Mechanisms of inflammation in fish
- Intestinal morphology alterations
- Histopathological studies of Aeromonas infections
- Antioxidant responses in aquaculture species
- Disease management strategies
- Genetic resistance to Aeromonas hydrophila 
- Environmental factors influencing disease outbreaks
- Impacts on aquaculture sustainability

Impact of Aeromonas hydrophila on Aquaculture: Inflammation, Intestinal Changes and Antioxidant Responses” is led by Shivendra Kumar, Dr. Rajendra Prasad Central Agricultural University and Izzet Burçin Satıcıoğlu, Bursa Uludag University. The collection accepts original research, reviews and methodologies. As a new open access journal, we are able to cover the article processing charges for publications. 

Professor Shivendra Kumar, PhD, Dr. Rajendra Prasad Central Agricultural University, India

Dr. Shivendra Kumar, Professor & Head, Department of Aquaculture, College of Fisheries, Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar involved in research, research based extension and teaching of graduate, post graduate and Ph.D students. Dr. Kumar pursued M.F.Sc and Ph.D in ‘Fish Nutrition and Biochemistry’ from ICAR – CIFE, Mumbai and post-doc in ‘Fish Nutrition’ at HAKI, Szarvas, Hungary.

Izzet Burçin Satıcıoğlu, PhD, Bursa Uludag University, Turkey

Dr. İzzet Burçin Satıcıoğlu is an Associate Professor of Veterinary Microbiology at Bursa Uludağ University, Faculty of Veterinary Medicine, Turkey, since 2022. He earned his Doctorate in Veterinary Sciences from Bursa Uludağ University in 2018, focusing on the genotypic characterization and prevalence of antimicrobial resistance genes in fish pathogens.

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Aquaculture
Life Sciences > Biological Sciences > Ecology > Ecosystems > Marine Biology > Aquaculture
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