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Janet B. García-Martínez; Jefferson E. Contreras-Ropero; Néstor A. Urbina-Suarez; Germán L. López-Barrera; Andrés F. Barajas-Solano; Viatcheslav Kafarov; Crisóstomo Barajas-Ferreira; Diana M. Ibarra-Mojica; Antonio Zuorro
fishfeeds, etc ; Chlorella; biomass; climate; computer software; simulation models; wastewater; water; Show all 8 Subjects
Abstract:
... The present research evaluates the simulation of a system for transforming inland-fisheries wastewater into sustainable fish feed using Designer® software. The data required were obtained from the experimental cultivation of Chlorella sp. in wastewater supplemented with N and P. According to the results, it is possible to produce up to 11,875 kg/year (31.3 kg/d) with a production cost of up to 18 ...
fishfeeds, etc ; analysis of covariance; aquaculture; feed formulation; feed prices; fish; fish nutrition; fish production; surveys; Ghana; Show all 10 Subjects
Abstract:
... Feed accounts for 60–80% of tilapia production costs, and high feed cost and limited feed access are major issues faced by fish farmers. A potential solution is for farmers to produce their own feeds using cheaper and locally available ingredients. This paper evaluates the feed formulation training implemented in Ghana as part of the Fisheries Commission's activities under the Ghana Aquaculture fo ...
... Amoebic Gill Disease (AGD) is a disease affecting cultured Atlantic salmon (Salmo salar) which is caused by Paramoeba perurans. The immunomodulatory impact of functional foods has previously been demonstrated in salmon. The aim of this study was to investigate the role of a novel fish feed in mitigating the severity and progression of AGD in Atlantic salmon. Negative and positive control fish were ...
... Integrated rice-carp farming is commonly employed on Hani terraces in China. However, the altitude within a Hani terrace can vary greatly, and thus the solutions for such a farming approach must vary with altitude. Research on common carp food sources in an integrated rice-carp farm at different altitudes helps to understand the food requirements of carp across periods and provides guidance for pr ...
fishfeeds, etc ; credit; economic investment; exports; extrusion; feed industry; fish; market share; markets; modernization; private sector; questionnaires; research support; supply chain; Egypt; Middle East; Show all 16 Subjects
Abstract:
... The aquafeed industry acts as a critical development driver along the entire Egyptian aquaculture value chain. This study aimed to analyze the competitiveness of the aquafeed subsector in Egypt, comparing its performance in 2018 with the results from an earlier study based on 2013 data. The current situation, the market and regulatory environment, key risks and potential mitigation measures were a ...
... A 60-day feeding trial was conducted to determine the impact of dietary phytoestrogen, genistein on inducing vitellogenesis in reproductively active male Cyprinus carpio. Adult male C. carpio were fed with graded levels of genistein, 0 (Control), 1 (Gen-1), 3 (Gen-3), 6 (Gen-6) and 9 (Gen-9) mg/100 g in fish feed. Serum levels of cholesterol, total testosterone and estradiol (E₂) showed an increas ...
fishfeeds, etc ; agricultural land; aquaponics; ecosystems; electricity; emergy; fish; food production; hydroponics; tourism; Brazil; Show all 11 Subjects
Abstract:
... Aquaponics is a food production system that aims higher sustainability by integrating advantages gained from aquaculture and hydroponic production. Aquaponics aims to mimic the biological process that happens in the natural environment in a controlled production system. As it can be applied to small scales, aquaponics is considered an important alternative for urban regions, which have low availab ...
fishfeeds, etc ; Oreochromis niloticus; biomass; feed conversion; fish; fish production; growth performance; models; periphyton; Show all 9 Subjects
Abstract:
... Nutrient-rich effluents from aquaculture can be reused to enhance the development of natural food to feed fish in periphyton-based systems. A periphyton-based system is a strategy to increase fish farming efficiency, reducing feed use and effluent disposal. This study aimed to evaluate different types of feeding management in periphyton-based systems to produce Nile tilapia in ponds. To do this, t ...
fishfeeds, etc ; absorption; aquaculture; bioaccumulation; bioavailability; fish; growth performance; metabolism; selenium; stress tolerance; toxicity; Show all 11 Subjects
Abstract:
... Selenium (Se) is a trace element vital for humans and animals for normal growth, health and stress resistance. Organic and inorganic Se sources are widely explored in fish feed, their absorption, metabolism, and distribution mechanisms are different. Previous studies in fish mainly focused on estimating the optimal dietary Se requirements of different fish species using a single Se source for the ...
fishfeeds, etc ; aquaponics; batch systems; bioavailability; byproducts; elemental composition; fertilizers; fish; mechanics; oxygen; prediction; temperature; Show all 12 Subjects
Abstract:
... Aquaponics practitioners have empirically known for years that feeding and growing fish generates nutrient-rich water as a byproduct, which serves as fertilizer to grow plants that ultimately clean the water for the fish. Despite the efforts of a few investigators, the literature lacks a methodical scientific basis for describing the essential mechanics, relationships between element inputs and ou ...
fishfeeds, etc ; Acanthaster planci; Echinoidea; Holothuria atra; Lates calcarifer; agar; aquaculture; aquaculture industry; body length; corals; fish meal; food industry; forage fish; hydrophilicity; ingredients; littoral zone; mouth; pests; protein sources; taste; Show all 20 Subjects
Abstract:
... Fish meal has become the suppressing factor for fish feed development. The current practice of using forage fish as the protein source in fish feed is not sustainable and is one of the major bottlenecks in the aquaculture industry. Numerous researchers have aimed to find newer, less expensive, and more widely available sources of protein, such as food industry by-products and other local raw mater ...
fishfeeds, etc ; computer software; electric arc; electric motors; finite element analysis; fish; gravity; stainless steel; Nigeria; Show all 9 Subjects
Abstract:
... As Nigeria props up her desire to boost local manufacturing and production industries, the need for proper design of an efficient and reliable fish feed mixing machine for safe and economic use cannot be overemphasized, as an efficient and reliable machine would minimize deterioration and losses during production to deliver good quality products (fish feeds) obtainable at the lowest production cos ...
fishfeeds, etc ; chemical species; complementary foods; diet; feed evaluation; food production; humans; liquid chromatography; livestock; perfluorocarbons; vegetables; Show all 11 Subjects
Abstract:
... Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are extremely stable highly fluorinated aliphatic compounds, widely used in chemical and industrial applications since 1950s. They are ubiquitously detected in the environment and diet is the main route for human exposure. To ensure human safety, it is necessary to follow the whole food production chain, including animal feed. Still PFASs are n ...
... We report on a case of a sea bass and sea bream aquaculture farm in Greece, with many incidents of severe dermal and visceral granulomatous lesions detected during routine inspection and post-mortem examination. The investigation was conducted on samples of fish feeds and fish feed ingredients available commercially, and tissue samples collected from the affected population, and consisted of molec ...
... In this study, we aimed to set up and test two models of annular-column photobioreactors (AC-PBR 1 and AC-PBR 2) in order to produce microalgae for fish hatcheries. Both models with a different design were characterized by a short light-path and central LED light source providing homogenous illumination of thin culture layer, sufficient mixing, and continuous temperature control guaranteed a stabl ...
... The outbreak of diseases leading to substantial loss is a major bottleneck in aquaculture. Over the last decades, the concept of using feed probiotics was more in focus to address the growth and health of cultivable aquatic organisms. The objective of this review is to provide an overview of the distinct functionality of archaea from conventional probiotics in nutrient utilization, specific calori ...
... Fish feed additives are recently encouraged to improve cultured fish health and production. Dietary supplementation with betaine (Bet) and chromium picolinate (Cr‐Pic) is known for its high quality for the benefit of aquaculture. A total of 180 healthy and equal‐sized O. niloticus were fed on a non‐supplemented basal diet, or a basal diet supplemented with Bet (10g/kg dry feed) (Bet group) or Cr‐P ...
fishfeeds, etc ; ammonium; drought; eutrophication; fish; food quality; land use; lentic systems; nitrates; polyunsaturated fatty acids; seston; urbanization; Brazil; Show all 13 Subjects
Abstract:
... Fatty acids (FAs) and their metrics have been used to detect and assess the impacts of urbanization and agriculture on aquatic ecosystems. Here, we investigated whether seston FAs are also useful to characterize and understand early-stage aquaculture impacts in a large tropical reservoir (Furnas Reservoir, SE Brazil). We tested the hypothesis that single FAs, as well as selected FA metrics in the ...
fishfeeds, etc ; Sparus aurata; animal growth; feed composition; fish; food waste; income; mechanistic models; prediction; system optimization; water pollution; Show all 11 Subjects
Abstract:
... Fish feed accounts for more than 50% of total production cost in intensive aquaculture. Feeding fish with low-quality feed or adopting inappropriate feeding strategies causes not only food waste and consequent loss of income but also lead to water pollution. The aim of this study was to develop a mechanistic model based optimization method to determine aquaculture feeding programs. In particular, ...
fishfeeds, etc ; Labidochromis; Portulaca; color; diet; feed additives; ichthyology; ornamental fish; pigmentation; specific growth rate; survival rate; weight gain; Show all 12 Subjects
Abstract:
... Purslane (Portulaca sp.) is a widely available succulent which could be used as an additive in fish feed owing to its nutritious nature and rich pigment content. In the present study, the effects of inclusion of purslane extract in fish feed was investigated on growth and pigmentation of blue streak hap (Labidochromis caeruleus Fryer, 1956). Fish were fed on diets containing 0 (control/T0), 3 (T3) ...