Article
Fisheries
Dara Cristina Pires, Gabriel Artur Bezerra, Andre Luiz Watanabe, Celso Carlos Buglione Neto, Alvaro Jose de Almeida Bicudo, Hamilton Hisano
Summary: This study evaluated the effects of dietary protein levels on various aspects of pacu juveniles, including growth performance, hematological and biochemical parameters, carcass and fillet yields, somatic indexes, and body chemical composition. The results showed that increasing protein levels had a quadratic effect on weight gain, thermal growth coefficient, protein productive value, and fillet yield. Feed consumption and carcass yield increased linearly, while protein efficiency ratio decreased linearly. Blood parameters remained within the normal range for this species. The optimal dietary protein level for the best growth of pacu juveniles reared in the biofloc system was estimated to be approximately 310 g kg(-1) CP.
Article
Fisheries
Ruben C. Cuadros, Norma L. S. Rivadeneyra, Anai Flores-Gonzales, Omar Mertins, Jose C. O. Malta, M. Enrique Serrano-Martinez, Patrick D. Mathews
Summary: The study identified the parasitic infection of R. rondoni nematode in farmed red-bellied pacu in the Peruvian Amazon, causing histopathological alterations in the intestinal tissue. These alterations include villi fusion, edema, and disorganization of epithelial cells. The findings highlight the importance of improving parasitic prevention and control strategies to prevent future disease outbreaks.
AQUACULTURE INTERNATIONAL
(2021)
Article
Fisheries
Amabile Frozza, Adriana Fiorini, Eliane Cristina Gruszka Vendruscolo, Fabio Rogerio Rosado, Daniela Konrad, Matheus Coelho Gomes Rodrigues, Eduardo Luis Cupertino Ballester
Summary: The study demonstrated that the addition of probiotics such as Bacillus subtilis and Bacillus licheniformis significantly improved the survival rate of Macrobrachium rosenbergii juveniles during their rearing period in a biofloc system.
AQUACULTURE RESEARCH
(2021)
Article
Fisheries
B. Seshagiri, Aditya Kumar, P. K. Pradhan, Neeraj Sood, Uday Kumar, C. Satyavati, Y. Sravanti, Krishna Prasoon, Arnab Ghosh, G. Kantharajan, V. S. Basheer, P. P. Chakrabarti, P. C. Das, Kuldeep K. Lal, J. K. Jena
Summary: The rise in fish demand in India is due to population growth, increasing affluence, and changing dietary habits. Diversification of aquaculture species, such as the successful introduction of the red-bellied pacu, has led to increased profitability for farmers.
Article
Fisheries
Mohammad Hossein Khanjani, Morteza Alizadeh, Moslem Sharifinia
Summary: The study showed that different carbon sources have varying effects on water quality, biochemical composition, and biofloc size in the biofloc system. TB, TC, and TM treatments had the highest levels of protein, lipid, and ash, respectively, while the largest biofloc size was observed in the TS treatment.
AQUACULTURE INTERNATIONAL
(2021)
Article
Fisheries
Gisele Cristina Favero, Fabio Aremil Costa dos Santos, Gustavo Soares da Costa Julio, Pedro Paulo Cortezzi Pedras, Andre Lima Ferreira, Walisson Silva, Nathalia Soares Ferreira, Luanna do Carmo Neves, Ronald Kennedy Luz
Summary: This study evaluated the effects of short feed restriction cycles on Piaractus brachypomus juveniles during the initial growth phase. The results showed that the 6 days fed/1 day feed restriction treatment had better growth performance compared to the control, while the 5 days fed/2 days feed restriction treatment performed worse. The food intake for the feed restriction treatments was lower.
Article
Fisheries
Yue Sun, Haochen Hou, Dengpan Dong, Jiasong Zhang, Xiaohan Yang, Xian Li, Xiefa Song
Summary: Recirculating aquaculture systems (RAS), biofloc technology (BFT), and higher-place ponds (HPP) are alternative technologies that can address environmental challenges in whiteleg shrimp farming. A life cycle assessment (LCA) was conducted on three RAS, three BFT, and nine HPP farms, with results showing that HPP had the highest environmental impact per unit production. Acidification potential (AP) and eutrophication potential (EP) were identified as the top contributors to environmental impact, closely related to electricity production.
Article
Microbiology
Shahadat Hossain, Hidayah Manan, Zuhayra Nasrin Ahmad Shukri, Rohisyamuddin Othman, Amyra Suryatie Kamaruzzan, Ahmad Ideris Abdul Rahim, Helena Khatoon, Tashrif Mahmud Minhaz, Zahidul Islam, Nor Azman Kasan
Summary: Microplastics pollution poses a threat to aquaculture practices and human health. Limited research has been done on the effects of microplastics and potential solutions. However, some bacteria show promise in degrading microplastics particles, offering a potential treatment option.
MICROBIOLOGICAL RESEARCH
(2023)
Article
Biology
Abdallah Tageldein Mansour, Ola A. Ashry, Mohamed Ashour, Ahmed Saud Alsaqufi, Khaled M. A. Ramadan, Zaki Z. Sharawy
Summary: This study investigated the effects of two carbon sources (sugarcane bagasse and wheat flour) on the biofloc composition, bacterial abundance, and growth of whiteleg shrimp. The results showed that the biofloc treatments using wheat flour as a carbon source could compensate for the reduction in dietary protein levels and maintain higher zootechnical performance.
Article
Fisheries
Wenchang Liu, Bo Xu, Hongxin Tan, Songming Zhu, Guozhi Luo, Abubakar Shitu, Yumei Wan
Summary: In this study, two nitrifying suspended growth bioreactor processes based on biofloc technology were investigated in recirculating aquaculture systems. The conversion of nitrifying bioreactor to denitrifying biofilter via adding carbohydrates was studied. The results showed that the dominant functional microbes in the nitrifying biofilters were ammonia-oxidizing bacteria, denitrifying bacteria, phosphorus/glycogen accumulating organisms, and nitrite-oxidizing bacteria. The addition of carbohydrates significantly improved the removal efficiency of nitrate and soluble reactive phosphate.
Review
Green & Sustainable Science & Technology
Muziri Mugwanya, Mahmoud A. O. Dawood, Fahad Kimera, Hani Sewilam
Summary: The global increase in population has raised food demand, leading to aquaculture as a solution to hunger and poverty. However, sustainable aquaculture development is hindered by limited resources and environmental impact. Biofloc technology offers a promising solution with high productivity, reduced resource usage, and minimal environmental impact, making it a viable option for sustainable aquaculture.
Article
Fisheries
Anai Flores Gonzales, Vanessa Mamani, Manuel Pereyra, Edwin Aguilar, Patrick Delgado Mathews, Marcos Tavares-Dias, Christian Fernandez-Mendez
Summary: This study investigated the in vitro efficacy of essential oils from Minthostachys mollis, Origanum vulgare, and Salvia rosmarinus against monogeneans from the gills of Piaractus brachypomus, as well as the tolerance of the fish to these oils. The results showed that M. mollis essential oil had a shorter exposure time to cause mortality in monogeneans. These essential oils can be used in consecutive therapeutic baths to control and treat monogeneans in P. brachypomus.
AQUACULTURE INTERNATIONAL
(2022)
Article
Neurosciences
Valentina Rueda-Garcia, Iang Schroniltgen Rondon-Barragan
Summary: This study characterizes the neurogranin gene in Colombian red-bellied pacu fish and investigates its expression in brain injury and sublethal toxicity. The findings demonstrate differential expression of NRGN under different experimental conditions, suggesting its potential as a biomarker in the fish brain.
MOLECULAR NEUROBIOLOGY
(2023)
Article
Fisheries
Rashmi Ranjan Das, Soumyabrata Sarkar, C. Saranya, P. Esakkiraj, R. Aravind, R. Saraswathy, P. N. Rekha, M. Muralidhar, Akshaya Panigrahi
Summary: The study demonstrates that incorporating macroalgae in biofloc-based RAS can enhance the production performance and immune response of shrimp during nursery and grow-out phases.
Article
Engineering, Environmental
Eliza M. Costigan, Morgan A. Oehler, Jean D. MacRae
Summary: Recirculating aquaculture systems (RAS) are popular for their potential to provide high-quality protein and this study investigates the applicability of a phosphorus adsorbent in RAS wastewater treatment. The results show that the adsorbent has high removal efficiencies and good selectivity for phosphate under different water conditions.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)