Effect of using sodium bicarbonate to adjust the pH to different levels on water quality, the growth and the immune response of shrimpLitopenaeus vannameireared in zero-water exchange biofloc-based culture tanks

AbstractThe present study was aimed to evaluate the effects of different levels of salinity on water quality, growth performance, survival rate and body composition of Pacific white shrimp in a heterotrophic/biofloc technology (BFT). Shrimp post-larvae with an average weight of 74.46 mg were cultured in 300 L fiberglass tanks containing 130 L water at a density of 1 post-larva/L. Three treatments including different levels of salinity of 8, 21 and 32 ppt with three replicates were considered. The highest levels of body weight, growth rate, specific growth rate, increase in body length and survival rate were observed at high salinity level (32 ppt). The highest feed conversion ratio (FCR) and the lowest level of feed efficiency were obtained in shrimps cultured at lowest salinity level (P<0.05). Biochemical analysis of shrimp body composition showed an increase in protein, lipid and ash content as the salinity elevated (P<0.05). The zero-water exchange system used in this study had no significant effects on water quality parameters. The results of the present study concluded that high salinity level (32 ppt) improves the growth and survival of the biofloc supplemented Pacific white shrimp in a BFT system.

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Monitoring of growth, digestive enzyme activity, immune response and water quality parameters of Golden crucian carp (Carassius auratus) in zero-water exchange tanks of biofloc systems

Aquaculture Reports ◽

10.1016/j.aqrep.2020.100283 ◽

2020 ◽

Vol 16 ◽

pp. 100283 ◽

Cited By ~ 4

Author(s):

Zhe Yu ◽

Liang Li ◽

Rui Zhu ◽

Min Li ◽

Jing Duan ◽

...

Keyword(s):

Water Quality ◽

Immune Response ◽

Enzyme Activity ◽

Carassius Auratus ◽

Water Exchange ◽

Crucian Carp ◽

Digestive Enzyme ◽

Quality Parameters ◽

Water Quality Parameters ◽

Crucian Carp Carassius Auratus

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Effect of Acetic Acid and Sodium Bicarbonate Supplemented to Drinking Water on Water Quality, Growth Performance, Organ Weights, Cecal Traits and Hematological Parameters of Young Broilers

Animals ◽

10.3390/ani11071865 ◽

2021 ◽

Vol 11 (7) ◽

pp. 1865

Author(s):

Yordan Martínez ◽

Cristopher Isaac Almendares ◽

Cristhian José Hernández ◽

Mavir Carolina Avellaneda ◽

Ana Melissa Urquía ◽

...

Keyword(s):

Water Quality ◽

Drinking Water ◽

Acetic Acid ◽

Sodium Bicarbonate ◽

Growth Performance ◽

Hematological Parameters ◽

Relative Weight ◽

Biological Response ◽

Blood Parameters ◽

Organ Weights

To evaluate the effect of acetic acid and sodium bicarbonate supplemented to drinking water on water quality, growth performance, relative organ weights, cecal traits and hematological parameters of broilers, a total of 456 one-day-old Cobb MV × Cobb 500 FF mixed broilers were randomly placed in three experimental treatments, with four replicates per treatment and 38 birds per replicate, for 10 days. The treatments consisted of the use of acetic acid (0.4%; T1) as acidifier, an apparently neutral pH (T2) and sodium bicarbonate (1%; T3) as alkalizer of the drinking water. T3 showed the highest values (p < 0.05) for total dissolved solids, electrical conductivity, salinity and pH. T1 and T2 showed the same productive response (p > 0.05); however, T3 decreased (p < 0.05) body weight, feed intake and the relative weight of the pancreas and immune organs and increased (p < 0.05) water intake, mortality and relative weight of the heart and liver. Likewise, T3 increased (p < 0.05) the cecal pH, although without changes for the cecal lactic cecal bacteria count and blood parameters (p > 0.05). The acid pH of the drinking water had no effect on the biological response of broilers compared to T2; however, the T3 provoked high mortality, ascites, low productivity and abnormal growth of some organs.

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Correlations between water quality and precipitation in areas with different levels of human occupation

International Journal of Energy and Water Resources ◽

10.1007/s42108-020-00097-y ◽

2021 ◽

Vol 5 (1) ◽

pp. 25-31

Author(s):

Lucas Augusto Pereira Rodrigues ◽

Fernando Aparecido Dias Radomski ◽

Rodrigo Felipe Bedim Godoy ◽

Elias Trevisan ◽

Enzo Luigi Crisigiovanni

Keyword(s):

Water Quality ◽

Human Occupation ◽

Different Levels

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Effect of stocking density on soil, water quality and nitrogen budget inPenaeus monodon(Fabricius, 1798) culture under zero water exchange system

Aquaculture Research ◽

10.1111/j.1365-2109.2012.03165.x ◽

2012 ◽

Vol 44 (10) ◽

pp. 1578-1588 ◽

Cited By ~ 7

Author(s):

Ramamoorthy Saraswathy ◽

Moturi Muralidhar ◽

Muniyandi Kailasam ◽

Pitchaiyappan Ravichandran ◽

Baijnatha Prasad Gupta ◽

...

Keyword(s):

Water Quality ◽

Soil Water ◽

Water Exchange ◽

Stocking Density ◽

Nitrogen Budget ◽

Exchange System

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Study on Water Exchange and Water Quality Simulation of Macao Airport Expansion Project

E3S Web of Conferences ◽

10.1051/e3sconf/202126103019 ◽

2021 ◽

Vol 261 ◽

pp. 03019

Author(s):

Huang Pengfei ◽

Liu Pei ◽

Xu Wei

Keyword(s):

Water Pollution ◽

Water Quality ◽

Exchange Rate ◽

Water Exchange ◽

Exchange Capacity ◽

Two Dimensional ◽

Water Exchange Rate ◽

Water Quality Simulation ◽

Significant Difference ◽

Better Than

In this paper, we analyzed the current situation of water pollution sources near Macao airport, established a two-dimensional water exchange and water quality mathematical model near the project, and compared and simulated the reclamation schemes of Macao airport. According to the results of water exchange and COD calculation of water quality, the 80 m channel scheme was remarkably better than the 40 m one in terms of water exchange capacity and the possibility of achieving the water quality target. However, with the increase of channel width, the variation of water exchange rate and half exchange period would slow down. There was no significant difference in water exchange rate, water exchange period and water quality distribution between 80m channel and 120 m channel. The final scheme was to adopt the 80 m channel.

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The effects of differences in water exchange on the productivity of glass eel stage in Anguilla bicolor bicolor culture

E3S Web of Conferences ◽

10.1051/e3sconf/202132202006 ◽

2021 ◽

Vol 322 ◽

pp. 02006

Author(s):

Eri Setiadi ◽

Adang Saputra ◽

Imam Taufik

Keyword(s):

Water Quality ◽

Blood Glucose ◽

Survival Rate ◽

Quality Management ◽

Water Exchange ◽

Water Quality Management ◽

Economic Value ◽

Culture Technique ◽

Glass Eel ◽

Survival And Growth

Eel, Anguilla bicolor bicolor has an economic value for export commodity. Eel farming has been developed both of home to industries scales. However, the main problem during the glass eel culture is the low survival rate, characterized by high mortality. This condition is related to the culture technique that has not been established yet, especially water quality management. The research aims to determine the best water exchange during the culture of the glass eel on the survival, growth, and blood glucose. The different percentages of water exchange as a treatment were followed A) control (without water exchange); B) 20% of water exchange; C) 40% of water exchange; and D) 60% of water exchange. The water exchange has affected the survival, growth, and blood glucose (P<0.05). The ammonia, nitrite, and nitrate values during the culture period showed that the control was higher compared to the others. The water exchange of 40% is suitable for glass eel stage culture to obtain the best survival and growth.

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2,2’4,4’-Tetrabromodiphenyl Ether (PBDE-47) Modulates the Intracellular miRNA Profile, sEV Biogenesis and Their miRNA Cargo Exacerbating the LPS-Induced Pro-Inflammatory Response in THP-1 Macrophages

Frontiers in Immunology ◽

10.3389/fimmu.2021.664534 ◽

2021 ◽

Vol 12 ◽

Author(s):

Valeria Longo ◽

Alessandra Longo ◽

Giorgia Adamo ◽

Antonino Fiannaca ◽

Sabrina Picciotto ◽

...

Keyword(s):

Immune Response ◽

Inflammatory Response ◽

Innate Immune Response ◽

De Novo ◽

In Silico Analysis ◽

Innate Immune ◽

Macrophage Cell ◽

Intracellular Expression ◽

Different Levels ◽

Silico Analysis

The 2,2’4,4’-tetrabromodiphenyl ether (PBDE-47) is one of the most prominent PBDE congeners detected in the environment and in animal and human tissues. Animal model experiments suggested the occurrence of PBDE-induced immunotoxicity leading to different outcomes and recently we demonstrated that this substance can impair macrophage and basophil activities. In this manuscript, we decided to further examine the effects induced by PBDE-47 treatment on innate immune response by looking at the intracellular expression profile of miRNAs as well as the biogenesis, cargo content and activity of human M(LPS) macrophage cell-derived small extracellular vesicles (sEVs). Microarray and in silico analysis demonstrated that PBDE-47 can induce some epigenetic effects in M(LPS) THP-1 cells modulating the expression of a set of intracellular miRNAs involved in biological pathways regulating the expression of estrogen-mediated signaling and immune responses with particular reference to M1/M2 differentiation. In addition to the cell-intrinsic modulation of intracellular miRNAs, we demonstrated that PBDE-47 could also interfere with the biogenesis of sEVs increasing their number and selecting a de novo population of sEVs. Moreover, PBDE-47 induced the overload of specific immune related miRNAs in PBDE-47 derived sEVs. Finally, culture experiments with naïve M(LPS) macrophages demonstrated that purified PBDE-47 derived sEVs can modulate macrophage immune response exacerbating the LPS-induced pro-inflammatory response inducing the overexpression of the IL-6 and the MMP9 genes. Data from this study demonstrated that PBDE-47 can perturb the innate immune response at different levels modulating the intracellular expression of miRNAs but also interfering with the biogenesis, cargo content and functional activity of M(LPS) macrophage cell-derived sEVs.

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