Immunophysiology of tambaqui fed with different levels of dietary protein in biofloc and clear water system

Santos, Raphael Brito dos; Izel‐Silva, Judá; Medeiros, Paulo Adelino de; Fugimura, Michelle Midori Sena; Freitas, Thiago Mendes de; Gallani, Sílvia Umeda; Claudiano, Gustavo da Silva; Ono, Eduardo Akifumi; Affonso, Elizabeth Gusmão

doi:10.1007/s10499-023-01205-5

Cited by 4 publications

(4 citation statements)

References 27 publications

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“…This suggests that the water quality and microbiological action did not induce stress in the animals. These results support the ndings for Nile tilapia (O. niloticus) and tambaqui (C. macropomum) in BFT systems compared to clear water systems (Long et al 2015;Dos Santos et al 2021;2023b;Figueroa-Espinoza et al 2022). The reduction in protein levels in the diet did not harm the physiological homeostasis of the sh, which supports the ndings of Dos Santos et al (2023b).…”

Section: Zootechnical Performance Somatic Indices and Blood Parameterssupporting

confidence: 86%

“…Total leucocytes and neutrophils showed statistical differences only between the juveniles from BFT and CW systems, with higher averages in matrinxã reared in BFT. As observed by Dos Santos et al (2023b), this difference can be attributed to prolonged contact with the microorganisms present in the BFT, who found not only a higher number of monocytes in tambaqui (C. macropomum) raised in BFT, but also an increase in their respiratory activity.…”

Section: Zootechnical Performance Somatic Indices and Blood Parametersmentioning

confidence: 61%

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Dietary protein levels for juvenile matrinxã Brycon amazonicus produced in biofloc and clear water systems

Cunha,

Affonso,

Suita

et al. 2024

Preprint

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This study evaluated potential for rearing the matrinxã, Brycon amazonicus, under different crude protein (CP) levels, using production performance, water quality and animal welfare as indicators. To achieve this, 720 juvenile fish (3.65 ± 0.17 g) were distributed across 24 experimental units (200 L) and fee study lasted 60 days. The study followed a factorial design (2x4), with two production systems: Biofloc technology (BFT) and clear water (CW), and four levels of crude protein (CP = 24%, 30%, 36%, and 42%) in the diet, with three repetitions for each. The study found that the BFT system showed a lower total ammonia level. However, the production system did not have any effect on pH or nitrite concentration. Oxygen levels were found to be lower in the 42% CP group. Fish produced in the BFT exhibited better performance of apparent feed conversion, productivity, and survival. The production system affected total leukocytes and neutrophils in the blood. There was no significant difference in carcass crude protein content and the ether extract content was higher in the animals from the BFT system. Nutritional composition of the biofloc showed differences for ash, with lower levels in the 42% CP treatment. In conclusion, juvenile matrinxã can be fed a diet containing 30% CP in both production systems. Furthermore, the results demonstrated that biofloc did not confer a direct benefit to matrinxã juveniles in terms of their feeding, however BFT represented a promising alternative for increasing the survival and improved animal welfare during the rearing phase.

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Section: Zootechnical Performance Somatic Indices and Blood Parameterssupporting

confidence: 86%

Section: Zootechnical Performance Somatic Indices and Blood Parametersmentioning

confidence: 61%

Dietary protein levels for juvenile matrinxã Brycon amazonicus produced in biofloc and clear water systems

Cunha,

Affonso,

Suita

et al. 2024

Preprint

Self Cite

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“…The importance of water temperature in BFT systems is associated with its in uence on the formation and stabilization time of microorganisms, as well as on the maintenance of the environment ( In the BFT system, the feed in the water and the oxidation of nitrogen compounds cause the consumption of alkalinity and, consequently, changes in pH (Ebeling et al 2006;Dos Santos et al 2023b). In this study, the increase in feed supply in the higher stocking densities generated a demand for inorganic carbon due to the greater activity of the bacterial community, which caused a reduction in pH and alkalinity at the higher densities (Table 1).…”

Section: Water Qualitymentioning

confidence: 99%

“…In a water recirculation system (WRS), the productivity in the grow out phase can reach 2.5 to 15 kg.m − 3 per cycle (Lima et reducing land occupation and water consumption, thus intensifying production and improving resource management (Assis et al 2020). Another super-intensive system that can intensify production of tambaqui and other species of sh native to the Amazon is bio oc technology (BFT) (Dos Santos et al 2021a;2023a;2023b;Izel-Silva et al 2024). This is presented as an alternative for super intensi cation and optimization of water and area use (Emerenciano et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Stocking densities of Colossoma macropomum in the initial grow out phase using biofloc technology

Montelo,

Santos,

Fugimura

et al. 2024

Preprint

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The objective was to identify the best stocking density in the initial fattening phase of tambaqui (Colossoma macropomum) using biofloc technology (BFT) and evaluate the effects of the densities on water quality, zootechnical performance and the metabolic profile of fish and production costs. Juveniles (56.5 ± 1.69 g) were reared in the densities: 15 (BFT15), 30 (BFT30) and 45 (BFT45) fish.m− 3, in triplicate, for 80 days. The use of BFT inoculum at the beginning contributed the maintenance of adequate ammonia and nitrite concentrations at all densities, though with a higher nitrite concentration in BFT45. Electrical conductivity (EC), nitrite, total suspended solids (TSS), pH, alkalinity and hardness were different (p < 0.05) between BFT15 and BFT45. EC and TSS increased according to the increase in density, and were higher in BFT45. The highest final weight, weight gain, daily weight gain and specific growth rate were observed in BFT15, while the apparent feed conversion was lower for BFT15 and BFT30 compared to BFT45 (p < 0.05). Biomass and productivity were higher (p < 0.05) in BFT45. The values of hematocrit, number of erythrocytes and the hemoglobin concentration were higher in BFT45 (p < 0.05). Regarding production costs, the highest average feed expenditure occurred in BFT45; however, expenditure with electricity was lower at this density. The increase in biomass in BFT45 generated the reduction of the partial average cost (ACp). It can therefore be concluded that the best stocking density for initial fattening of tambaqui is 45 fish.m− 3, since it presents better productivity and biomass, lower ACp and average expenditure on electricity when using BFT.

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Stocking densities of Colossoma macropomum in the initial grow-out phase using biofloc technology

Montelo,

dos Santos,

Fugimura

et al. 2024

Aquacult Int

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Immunophysiology of tambaqui fed with different levels of dietary protein in biofloc and clear water system

Cited by 4 publications

References 27 publications

Dietary protein levels for juvenile matrinxã Brycon amazonicus produced in biofloc and clear water systems

Dietary protein levels for juvenile matrinxã Brycon amazonicus produced in biofloc and clear water systems

Stocking densities of Colossoma macropomum in the initial grow out phase using biofloc technology

Stocking densities of Colossoma macropomum in the initial grow-out phase using biofloc technology

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