Role of Biofloc in the Growth and Survival of Blue morph, &lt;I&gt;Pseudotropheus saulosi&lt;I&gt;

Harini, C.; Rajagopalasamy, C. B. T.; Kumar, J. Stephen Sampath; Santhakumar, R.

doi:10.17485/ijst/2016/v9i8/75237

Cited by 15 publications

(11 citation statements)

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“…Therefore, the culture of omnivorous and detritivorous species tend to take advantage from the food available in the system (Azim & Little, 2008;Martínez-Córdova et al, 2015). Cichlid species cultured at high stocking densities in BFTs have shown feed efficiency and high production yields (Azim & Little, 2008;Harini et al, 2016;Monroy-Dosta et al, 2013). Thus, we formulated a hypothesis that the G. brasiliensis, for being omnivorous and feeds on microorganisms (rotifers, copepods, nematodes and cladocerans), would present a higher zootechnical performance in a BFT system compared to a clear water system (low abundance or absence of microorganisms).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the cultivation parameters of the pearl cichlidGeophagus brasiliensisin biofloc and clear water systems

et al. 2021

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Geophagus brasiliensis is a species native from Brazilian continental waters and it is distributed in several aquatic ecosystems. Despite its importance to artisanal fishing, mainly for riverside communities, and fishkeeping, this species is an unusual resource for aquaculture. Fish farming can be carried out in different systems, as in biofloc system (BFT), which has some advantages comparing to traditional semi-intensive systems: high densities, maximizing the use of water and food provided. The objective was to evaluate the rearing of the G. brasiliensis in a BFT comparing with a clean water system (CW), considering the zootechnical performance, water quality and microorganisms community. The experiment lasted 40 days and was carried out in tanks with a useful volume of 200 L, with three repetitions for each treatment. To compare the two systems, the fish conditions (weight-length ratio, condition factor and zootechnical performance) and the conditions of the environment (water quality and composition of microorganisms in the BFT treatment) were evaluated. BFT animals showed higher zootechnical performance (final weight, weight gain and feed conversion) when compared to treatment CW. The water quality showed a difference between BFT and CW for all levels except temperature and N-ammoniacal; however, it was within the acceptable limits for cichlids in the two treatments. Eight rates of microorganisms, potential food for the fish, were found in the BFT treatment during the experiment. The species G. brasiliensis showed a higher zootechnical performance in a biofloc system compared to the clear water system, indicating the potential for cultivation in intensive production systems.

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Section: Introductionmentioning

confidence: 99%

Assessment of the cultivation parameters of the pearl cichlidGeophagus brasiliensisin biofloc and clear water systems

et al. 2021

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“…A similar protein percentage (24.30 g/100 g) was observed for the bioflocs produced individually in the three 1000 L indoor fiberglass reinforced plastic tanks [37] using a hot air oven-drying method at 45 °C. Furthermore, drying at room temperature or air-drying in a greenhouse also resulted in a protein percentage of 24 g/100 g [55,56]. Lee et al [18] used a freeze-dryer for biofloc meal collected from the sludge formed on the water surface in shrimp tanks, and 28.7 g/100 g was recorded for protein content.…”

Section: Discussionmentioning

confidence: 99%

“…Various methods of drying have been executed to create the biofloc meal. Drying under sunlight [36], at room temperature [55,56], in a greenhouse [22], in an oven [12,37,50], or in a freezedryer [18,65] are examples of the methods. Even though the differences among techniques in processes and principles, the main aim is how to collect a maximum amount of raw material with minimal time and effort, and dry it in high quality and extended the shelflife of dried product [25] while storing.…”

Section: Discussionmentioning

confidence: 99%

Proximate Chemical Composition of Dried Shrimp and Tilapia Waste Bioflocs Produced by Two Drying Methods

Binalshikh-Abubkr

Hanafiah

Das

2021

JMSE

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The effects of two waste sources, red hybrid tilapia (Oreochromis sp.) and whiteleg shrimp (Litopenaeusvannamei), and two drying methods (freeze-drying and oven-drying) on the proximate chemical composition of bioflocs were investigated. In total, four kinds of experimentally treated bioflocs were compared to identify the best waste source and drying method to produce biofloc of an acceptable nutrient value: freeze-dried shrimp biofloc (FDSBF), oven-dried shrimp biofloc (ODSBF), freeze-dried tilapia biofloc (FDTBF), and oven-dried tilapia biofloc (ODTBF). The protein, lipid, ash, fiber, total nitrogen free extract (NFE), and energy contents of the dried bioflocs ranged from 12.12 to 24.09 g/100 g, 0.35 to 0.92 g/100 g, 42.45 to 61.01 g/100 g, 7.43 to 17.11 g/100 g, 16.45 to 18.59 g/100 g, and 0.99 to 1.94 Kcal g−1, respectively. Statistically, there were significant differences within the means of the two biofloc sources in terms of their proximate compositions (p < 0.05). The average values between the drying methods for protein, lipid, total NFE, and energy were also significantly different, while no significant differences (p > 0.05) were recorded for ash and fiber. Amino acids (AAs) were higher in FDTBF, followed by ODTBF. The mineral profiles showed that phosphorous, potassium, manganese, selenium, and copper were higher in the tilapia waste bioflocs, while calcium, zinc, iron, copper, chromium, and cobalt were higher in the shrimp waste bioflocs. Although the statistical analysis showed that the shrimp waste bioflocs had higher levels of lipid, fiber, total NFE, and minerals, the tilapia waste bioflocs contained higher levels of potential AAs, energy, and protein, which are regarded as expensive ingredients in aquaculture feeding. This study indicates that biofloc derived from tilapia waste can be regarded as a more suitable source of biofloc meal (in terms of protein, ash, energy, and AAs) than biofloc derived from shrimp waste. Our findings also suggest that freeze-drying is a more effective drying method for drying biofloc, as it efficiently maintains nutritional quality.

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“…The technology has also been extended to two major commercially important carps, i.e., Catla cattle ( 80 ) and Labeo rohita ( 50 ). For the ornamental fish industry, various species have also been studied using this technology like Poecilia reticulata ( 81 ), Scatophagus argus ( 82 ), Carassius auratus ( 83 ), and Pseudotropheus saulosi ( 84 ). Some other commercially important species that have been studied using the BFT are shown in Table 3 .…”

Section: Biofloc Technologymentioning

confidence: 99%

A Solution for Sustainable Utilization of Aquaculture Waste: A Comprehensive Review of Biofloc Technology and Aquamimicry

Nisar

Peng

et al. 2022

Front. Nutr.

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Biofloc technology (BFT) is gaining traction as a strategic aquaculture tool for boosting feed conversions, biosecurity, and wastewater recycling. The significant aspect of BFT is aquaculture with highest stocking density and minimal water exchange. It not only improves the water quality of a system by removing inorganic nitrogen from wastewater but also serves as a suitable feed supplement and probiotic source for cultured species. This technology is commonly used for shrimp and tilapia culture and can be used for both semi-intensive and intensive culture systems. Biofloc, when combined with formulated diets, forms a balanced food chain that improves growth performance. Nutrients in this system are continuously recycled and reused and form an efficient alternative system in aquaculture. In addition to the reduction in water exchange, it is also considered as a bio-security measure, since it prevents entry of disease from outside sources. Aquamimicry is an innovative concept that simulates natural estuarine conditions by developing copepods that act as supplementary nutrition especially for shrimp culture. The review highlights the process, significance, and development of BFT, its microbial interactions, nutritional value, transition from biofloc to copefloc, and concept of aquamimicry to sustainably improve aquaculture production.

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Role of Biofloc in the Growth and Survival of Blue morph, <I>Pseudotropheus saulosi<I>

Cited by 15 publications

References 0 publications

Assessment of the cultivation parameters of the pearl cichlidGeophagus brasiliensisin biofloc and clear water systems

Assessment of the cultivation parameters of the pearl cichlidGeophagus brasiliensisin biofloc and clear water systems

Proximate Chemical Composition of Dried Shrimp and Tilapia Waste Bioflocs Produced by Two Drying Methods

A Solution for Sustainable Utilization of Aquaculture Waste: A Comprehensive Review of Biofloc Technology and Aquamimicry

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