Cultivo Do Camarão Marinho Com Bioflocos Sob Diferentes Níveis De Proteína Com E Sem Probiótico

Melo, Fabiana Penalva de; Ferreira, Maria Gabriela P.; Lima, João Paulo Viana de; Correia, Eudes de Souza

doi:10.1590/1983-21252015v28n422rc

Cited by 8 publications

(6 citation statements)

References 39 publications

(29 reference statements)

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“…As the soils of riparian zones presented a sandier texture at both depths (Table 2), this also contributed to the lower levels of organic carbon present in these soils. However, in both areas, the results found for carbon contents were like those found by other studies carried out in semiarid regions of Brazil (Melo et al, 2008;Martins et al, 2010).…”

Section: Discussionsupporting

confidence: 89%

Soil and litter properties from a riparian to non-riparian zone in a tropical dry forest

Pessoa,

Miranda,

Calheiros

et al. 2023

J. Env. Anal. Progr.

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Riparian zones of dry tropical forests are important due to their effect on nutrient cycling and carbon dynamics. It’s important to evaluate the changes that occur when these areas are altered, in order to ascertain the magnitude of nutrient gains or losses. This work evaluates chemical changes in soil and litter transitioning from a riparian to a non-riparian zone. Plots were established for soil and litter sampling in riparian and non-riparian zones. For chemical analysis, litter and soil surface sampling were performed at depths of 0.0 to 0.10 m and 0.10 to 0.20 m. The descriptive and principal component analysis assessed chemical attribute sets' soil and litter characteristics. We observed higher P, K, and Ca content at both depths in soils of the non-riparian zone. The total soil organic carbon content in the non-riparian zones was 1.28 and 1.51 times greater at 0-10 and 10-20 cm depths, respectively than in the riparian zones. This study revealed that despite the chemical and organic inputs in the non-riparian zones, no significant differences were observed regarding the chemical properties of the soils of riparian areas as opposed to the soils of non-riparian areas since the litter of the riparian zones was richer in nutrients. Additionally, this study suggests that the humic acid and humin fractions are responsible for maintaining fertility in riparian areas due to strong correlations with soil nutrients.

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Section: Discussionsupporting

confidence: 89%

Soil and litter properties from a riparian to non-riparian zone in a tropical dry forest

Pessoa,

Miranda,

Calheiros

et al. 2023

J. Env. Anal. Progr.

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“…Nutrition studies performed on the BFT system show that 29% of total food intake by L. vannamei juveniles is possibly derived from microbial aggregates. Some point out that it is possible to reduce feed protein levels from 35% to 25% without compromising juvenile growth performance indices (Burford et al, 2003;Wasielesky et al, 2006;Crab et al, 2010;Melo et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Protein Requirement for Initial Rearing Phase of Pacific White Shrimp in a Biofloc System

Henriques¹,

Guimarães²,

Díaz³

et al. 2021

Bol. Inst. Pesca

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This study evaluated the protein requirement of Litopenaeus vannamei post-larvae during the initial rearing phase in a biofloc system. Five different diets were evaluated with increasing concentrations of crude protein: 31.28, 36.29, 41.57, 46.34, and 51.74 g 100 g-1 CP. Post-larvae (0.16 ± 0.01 g) were stocked at a density of 450 PL m-3 in 400 L tanks. Water quality parameters were maintained within the limits recommended for shrimp farming. After 38 days, a regression analysis revealed that levels of CP content (65.29 – 72.83%), EE (10.45 – 11.65%) and body N (10.45 – 11.64%) increased with increasing protein levels in the diet. A similar trend was observed in the biofloc sludge with respect to CP and N. Survival exceeded 80%, and the shrimp with diets containing 31.28 to 46.34g 100 g-1 CP presented an increase in final weight (1.52 – 2.61 g), productivity (0.69 – 1.10 Kg m-3), weight gain (1.38 – 2.44 g), and feeding efficiency (77.28 – 101.68%), whereas these indices decreased to51.74 g 100 g-1 CP. Crude protein content from 44.26 to 47.12 g 100 g-1 provided the best growth performance during the initial rearing phase of Pacific white shrimp in a biofloc system.

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“…The use of probiotics in modern aquaculture is increasingly rising, which in addition to helping to preserve the guts' microbiota (De et al, 2014) helps to promote the nutritional value of plant feedstuffs through fermentation (Van Nguyen et al, 2018). Their use in aquaculture systems such as the BFT and aquamimicry also improves the zootechnical process of the system (De Melo et al, 2015). Probiotics are living microorganisms that are added to the aquaculture environment through food or water to exert beneficial effects on the host health and its growth performance by modulating the guts' microflora (Balcázar et al, 2006;Merrifield et al, 2010;Dawood et al, 2016Dawood et al, , 2018Vidal et al, 2018).…”

Section: The Application Of Probiotics In Aquamimicry Systemmentioning

confidence: 99%

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

Khanjani

Mozanzadeh

Fóes

2022

Annals of Animal Science

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Shrimp culture is the most lucrative sector in aquaculture industry; however, for its sustainable development the environment conservation should be concerned. New developed technologies are required to achieve aquaculture to its sustainable goals. Among the different novel sustainable technologies, the biofloc technology (BFT) and more recently the aquamimicry system are considered as reliable methods in burgeoning development of shrimp culture. The establishment of the BFT needs a certain carbon to nitrogen (C: N) ratio so that heterotrophic bacteria able to utilize nitrogenous metabolites, and preserve the water quality in the standard ranges suitable for shrimp culture. In addition, the produced floc can be used as supplementary food for shrimp. On the other hand, the establishment of the aquamimicry system relies on organic carbon without providing a specific C: N ratio. In this system, a synergistic relationship between a prebiotic source, which usually consists of an oligosaccharide derived from the fermentation of a carbon source (e.g., rice bran), and a probiotic source such as Bacillus sp. can provide natural conditions by blooming phytoplankton and zooplankton organisms, especially copepods. These live foods can be used as complementary foods for shrimp. Furthermore, the proliferation of beneficial bacteria in the aquamimicry system can provide stable culture condition for growth and welfare of shrimp. Based on the findings of recent literature, using the aquamimicry system for shrimp production is a more sustainable, eco-friendly, and greener than the conventional systems.

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Cultivo Do Camarão Marinho Com Bioflocos Sob Diferentes Níveis De Proteína Com E Sem Probiótico

Cited by 8 publications

References 39 publications

Soil and litter properties from a riparian to non-riparian zone in a tropical dry forest

Soil and litter properties from a riparian to non-riparian zone in a tropical dry forest

Protein Requirement for Initial Rearing Phase of Pacific White Shrimp in a Biofloc System

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

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