Aquamimicry system: a sutiable strategy for shrimp aquaculture – a review

Khanjani, Mohammad Hossein; Mozanzadeh, Mansour Torfi; Fóes, Geraldo Kipper

doi:10.2478/aoas-2022-0044

Cited by 28 publications

(11 citation statements)

References 78 publications

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“…Se ha visto que en los medios con abundancia de sustancias prebióticas y posbióticas, así como de microorganismos probióticos, como el que ofrece el "aquamimicry", se mejora el balance microbial en el tracto digestivo y que esto puede ayudar a superar potenciales deficiencias reproductivas tanto en diversas especies de peces dulceacuícolas (23,36,37,38) como en camarón blanco, Litopenaeus vannamei (12,39).…”

Section: Discussionunclassified

“…Por otra parte, los sistemas heterótrofos, en los que la proporción C:N del medio es alta y donde predominan las comunidades quimioautótrofas y heterótrofas como bacterias, hongos y levaduras, que son la base para el funcionamiento de la tecnología de biofloc (BFT por sus siglas en inglés) y el método conocido como "aquamimicry" (6,10,11,12). A grandes rasgos, las principales características de ambos métodos de producción son:…”

Section: Introductionunclassified

“…y Lactobacillus sp.) que producen enzimas hidrolíticas capaces de romper las fibras vegetales e incrementar la solubilidad de las proteínas de dichas fuentes de carbono, controlando además el crecimiento de las poblaciones de microalgas, llevando a la estabilización de los niveles de pH del agua y manteniendo bajos los niveles de sedimentos en el fondo de los tanques de producción (12,16,17).…”

Section: Introductionunclassified

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Productive performance of tilapia females, Oreochromis niloticus, under different farming methods.

Estrada-Godinez,

Rodríguez-Montes de Oca,

Pacheco-Marges

et al. 2023

Rev MVZ Córdoba

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Objectives: The objective was to assess the effect of different farming methods on the condition factor and egg production in female brooders of tilapia. Materials and methods: three different stocks of brooders were kept in three different experimental treatments – TC: green water (control), T1: aquamimicry, T2: biofloc, being each stock as a repetition at each experimental treatment. A sexual ratio of 3:1 was used and a commercial diet with a content of protein of 32% was provided twice at a day for 60 days. At the beginning and ending of the experiment, the condition factor was estimated. Every week, the eggs produced in each tank were collected, at the end of the experiment, the production volume was estimated in all experimental treatments. Results: In the condition factor no significant differences were observed at the beginning of the experiment, but at the ending significant differences were recorded between the stocks, but not between treatments. Either no significant differences were observed when the condition factor was assessed between brooders stock and experimental treatments. Finally, significant differences were observed in the egg production between the experimental treatments, with the higher production into the three brooders stocks of the T1 treatment, with production volumes around of 70 ml. Conclusions: The maintenance of tilapia broodstock in “aquamimicry” culture systems, results in a significant increase in the volume of eggs production.

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Section: Discussionunclassified

Section: Introductionunclassified

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Productive performance of tilapia females, Oreochromis niloticus, under different farming methods.

Estrada-Godinez,

Rodríguez-Montes de Oca,

Pacheco-Marges

et al. 2023

Rev MVZ Córdoba

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“…These proprieties have been shown to minimize environmental impacts [ 32 ] with no or minimal effluent to the natural surroundings [ 33 ]. To produce microbial aggregates, balancing carbon and nitrogen is necessary, with traditional aquafeeds being the main source of nitrogen and carbon, and affordable products such as sugar cane molasses and grains, as well as inorganic fertilizers, providing the remainder of carbon fraction and other key nutrients [ 34 , 35 ]. Proteinaceous microbial-based food source containing vitamins, lipids, and carbohydrates is produced in situ [ 36 ] and can reduce aquafeed consumption by up to 20% [ 33 , 37 , 38 ].…”

Section: Understanding Biofloc Technologymentioning

confidence: 99%

Biofloc Technology (BFT) in Aquaculture: What Goes Right, What Goes Wrong? A Scientific-Based Snapshot

Khanjani,

Sharifinia,

Emerenciano

2024

Aquaculture Nutrition

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Aquaculture is a crucial industry that can help meet the increasing demand for aquatic protein products and provide employment opportunities in coastal areas and beyond. If incorrectly manage, traditional aquaculture methods can have negative impacts on the environment and natural resources, including water pollution and overuse of wild fish stocks as aquafeed ingredients. Biofloc technology (BFT) may offer a promising solution to some of these challenges by promoting a cleaner and sustainable production system. BFT converts waste into bioflocs, which serve as a natural food source for fish and shrimp within the culture system, reducing the need for external inputs, such as feed and chemicals. Moreover, BFT has the potential to improve yields and economic performance while promoting efficient resource utilization, such as water and energy. Despite its numerous advantages, BFT presents several challenges, such as high energy demand, high initial/running costs, waste (effluent, suspended solids, and sludge) management, opportunistic pathogens (vibrio) spread, and a lack of understanding of operational/aquatic/microbial dynamics. However, with further training, research, and innovation, these challenges can be overcome, and BFT can become a more widely understood and adopted technique, acting as an effective method for sustainable aquaculture. In summary, BFT offers a cleaner production option that promotes circularity practices while enhancing performance and economic benefits. This technique has the potential to address several challenges faced by the aquaculture industry while ensuring its continued growth and protecting the environment. A more broad BFT adoption can contribute to meeting the increasing demand for aquaculture products while reducing the industry’s negative impact on the environment and natural resources. In this context, this review provides an overview of the advantages and challenges of BFT and highlights key technical, biological, and economic aspects to optimize its application, promote further adoption, and overcome the current challenges.

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“…An effective solution for addressing waste material toxicity is the gradual addition of carbonaceous materials in smaller quantities, as opposed to adding them all at once to the pond (Crab et al, 2010). Introducing carbohydrates to systems used for intensive shrimp culture, without water exchange, has been found to significantly enhance water quality, bacterial activities, and zooplankton growth, resulting in improved growth performance (Khanjani et al, 2022 c;Guo et al, 2012). When a carbon source is introduced into the culture environment, it is rapidly metabolized by the biofloc community present in the environment.…”

Section: Adding Carbohydratesmentioning

confidence: 99%

Biological removal of nitrogenous waste compounds in the biofloc aquaculture system: a review

Khanjani,

Zahedi,

Sharifinia

et al. 2024

Annals of Animal Science

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Aquaculture has experienced significant global expansion and is considered one of the fastest-growing sectors in food production. However, there exist additional challenges that restrict the capacity to achieve maximum efficiency in aquaculture systems, such as issues over water quality and shortages of appropriate live feeds. Intensive aquaculture systems involve the use of protein-rich prepared feed for feeding the cultured animals. This may give rise to the discharge of nitrogenous compounds into the water, which can pose a risk to the environment when present in excessive quantities beyond the acceptable levels. In recent years, an innovative method called biofloc technology (BFT) has become a practical solution to this issue. Undoubtedly, BFT offers a groundbreaking method for nutrient disposal that eradicates the requirement for excessive water use or equipment maintenance. Three primary types of microorganisms are crucial in alleviating the adverse impacts of nitrogen compounds in this technique. Photoautotrophs participate in the processes of removal and absorption, whereas chemoautotrophs promote nitrification and conversion. Heterotrophs contribute to the absorption process. Biofloc predominantly consists of heterotrophic bacteria, alongside algae, protozoa, rotifers, and nematodes. While there have been reviews carried out on multiple aspects of biofloc technology, there exists a lack of literature that tackles this particular field of research progress. This article discusses every aspect and techniques of biological management used for removing nitrogenous waste compounds in biofloc aquaculture systems.

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Aquamimicry system: a sutiable strategy for shrimp aquaculture – a review

Cited by 28 publications

References 78 publications

Productive performance of tilapia females, Oreochromis niloticus, under different farming methods.

Productive performance of tilapia females, Oreochromis niloticus, under different farming methods.

Biofloc Technology (BFT) in Aquaculture: What Goes Right, What Goes Wrong? A Scientific-Based Snapshot

Biological removal of nitrogenous waste compounds in the biofloc aquaculture system: a review

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