Periphyton use on microbial dynamics, water quality, and Nile tilapia growth in rearing tanks

2021 ◽  
Vol 56 ◽  
Author(s):  
Jéssica Lucinda Saldanha da Silva ◽  
Fátima Cristiane Teles de Carvalho ◽  
Rubson Mateus Matos Carvalho ◽  
Oscarina Viana de Sousa
Keyword(s):  
Water Quality ◽  
Nile Tilapia ◽  
Heterotrophic Bacteria ◽  
Experimental Period ◽  
Ammonia Nitrogen ◽  
Quality Parameters ◽  
Artificial Substrate ◽  
Biofilm Growth ◽  
Total Ammonia ◽  
Periphytic Biofilm

Abstract: The objective of this work was to evaluate the effect of the use of an artificial substrate for periphytic biofilm growth on the microbiological composition of the biofilm, water quality, and zootechnical performance of Nile tilapia (Oreochromis niloticus) in rearing tanks. The experiment consisted of two treatments: presence and absence of artificial substrate for the growth of periphyton, with five replicates. Water quality parameters were evaluated throughout the entire experimental period. Every two weeks, samples of the periphyton were collected for the analysis of its microbiological composition and biometric measurements of the fish were performed. The number of heterotrophic bacteria in the biofilm increased during the experimental period, but that of Aeromonas decreased with the use of the artificial substrate. The total ammonia nitrogen in the tanks with periphyton reduced in 30% compared with that of the control. Tilapia reared with the biofilm showed a final weight 2.4 times greater than that of those subjected to the control, as well as an increase of 59.19% in their productivity. The use of an artificial substrate for periphytic biofilm in Nile tilapia rearing tanks favors the maintenance of the quality of the culture water, the protection of the fish against pathogens, and the improvement of the zootechnical performance of the fish.

scholarly journals Study of Biofilter Planted with Basil for Removal of Ammonia in Aquaponic Water

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Bharat Nandkumar Mulay ◽  
Konda Rajasekhar Reddy
Keyword(s):  
Water Quality ◽  
Ammonia Nitrogen ◽  
Quality Parameters ◽  
Coarse Aggregates ◽  
Total Ammonia Nitrogen ◽  
Coconut Husk ◽  
Significant Difference ◽  
Total Ammonia ◽  
Water Recirculation ◽  
Aquaculture Water

Abstract This experimental investigation of a laboratory scale aquaponic system included testing of a biofilter with basil plant as the biofilter part on aquaculture water quality. Irridescent shark was selected as aquaculture species. The biofilter consist of natural biomaterials such as coconut husk, coco peat, and coarse aggregates. The experiment was carried out for three short water recirculation durations of 2, 3, and 4 h/day. The influent and effluent ammonia NH3, total ammonia nitrogen (TAN), nitrites NO2 and nitrates NO3 levels were measured and analysed. The results showed that the biofilter effectively removed NH3 (65 - 71 %), TAN (34 - 58 %), and NO2 (60 - 67 %) from the aquaculture water. The dissolved oxygen (DO) levels were maintained between 3 - 7.0 mg/l during all the recirculation durations. The significance of water recirculation period was assessed by calculating the differences between the means of water quality parameters with a statistical test named one-way analysis of variance (ANNOVA) with significant level P taken as 5 %, i.e., P ≤ 0.5. The effluent mean NH3 levels 0.030 mg/l, 0.033 mg/l, and 0.022 mg/l exhibited significant difference at 4 h/d periods while effluent TAN levels 0.81, 0.77, and 0.77 showed no difference with varying periods.

scholarly journals Stress response in transport of juvenile cobia Rachycentron canadum using the anesthetic benzocaine

2017 ◽  
Vol 44 (3) ◽  
pp. 638-642
Author(s):  
Janaína S. Pedron ◽  
Denise S. Miron ◽  
Ricardo V. Rodrigues ◽  
Marcelo H. Okamoto ◽  
Marcelo B. Tesser ◽  
...  
Keyword(s):  
Water Quality ◽  
Blood Glucose ◽  
Stress Response ◽  
Stocking Density ◽  
Ammonia Nitrogen ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Blood Samples ◽  
Total Ammonia Nitrogen ◽  
Total Ammonia

This experiment evaluated the efficacy of benzocaine to reduce stress response during transport of juvenile cobia. Fish (30 g) were packed in bags and transported for 8 h (stocking density = 10 g L-1). Three concentrations of benzocaine were evaluated: 0, 2, and 6 mg L-1. Blood samples were taken for glucose and hematocrit before transportation, and then at 0, 2, 24, and 48 h after. Water quality parameters were verified. No mortality was observed. Total ammonia nitrogen was higher (2.46 mg L-1) and pH was lower (6.92) at 2 mg benzocaine L-1. There was an increase in blood glucose for all treatments on arrival, and it was higher for those exposed to benzocaine at 6 mg L-1, although at 48 h they were all similar. The hematocrit did not differ among treatments. The results suggest: 1) the density 10 g L-1 is considered safe for juvenile cobia transport; 2) benzocaine did not mitigate stress response on cobia during transport, therefore its use is not recommended for this purpose.

scholarly journals Recirculation anaesthesia for laboratory fish

1987 ◽  
Vol 21 (3) ◽  
pp. 210-215 ◽  
Author(s):  
L. A. Brown
Keyword(s):  
Water Quality ◽  
Surgical Procedures ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Ammonia Nitrogen ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Total Ammonia Nitrogen ◽  
Total Ammonia

An economic reliable long-term recirculation anaesthesia system for laboratory fish is described. Anaesthesia of channel catfish ( Ictalurus punctatus Rafinesque) was induced within 60 s and was maintained for up to 40 min using tricaine methanesulphonate; recovery occurred within 30-60 s. Various surgical procedures were performed on the fish. No deaths were recorded. All water-quality parameters tested over 19 days use of the system remained stable except for total ammonia nitrogen and, by calculation, un-ionized ammonia which increased to a maximum of 0·23 mg/1.

scholarly journals Effect of packing density on selected tissue biochemical parameters of hatchery produced fingerlings of orange spotted grouper Epinephelus coioides (Hamilton, 1822) during transportaion

2018 ◽  
Vol 65 ◽  
Author(s):  
Biji Xavier ◽  
Sekar Megarajan ◽  
Ritesh Ranjan ◽  
Ponnaganti Shiva ◽  
Biswajit Dash ◽  
...  
Keyword(s):  
Water Quality ◽  
Packing Density ◽  
Biochemical Parameters ◽  
Ammonia Nitrogen ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Epinephelus Coioides ◽  
Tissue Samples ◽  
Total Ammonia ◽  
Packing Densities

<p>Effect of different packing densities on water quality parameters, survival and selected tissue biochemical parameters during transportation of hatchery produced fingerlings of orange spotted grouper <em>Epinephelus coioides</em> (Hamilton, 1822) was investigated. Fingerlings (weight 3.0±0.2 g and length 6.0±0.2 cm) were packed in sealed double layered oxygen packed polythene bags (water and oxygen ratio 1:3) at different packing densities of 20, 30, 40 and 50 no. l-1. The packed fishes were transported for 6 h. After transportation, water samples and tissue samples from fishes were collected for further analyses. Levels of tissue glucose and selected metabolic enzymes (lactate dehydrogenase, LDH; aspartate amino transferase, AST and alanine amino transferase, ALT) significantly (p&lt;0.05) increased with increased packing density. Water quality parameters <em>viz.,</em> pH, dissolved oxygen, CO2, alkalinity, total ammonia nitrogen (TAN) and nitrite nitrogen (NO2-N) were also significantly different at higher packing densities (p&lt;0.05). However, levels of all the tissue biochemical parameters tested were in tolerable range and no mortality of fingerlings was recorded at any of the packing densities. Though the tissue enzyme levels were significantly higher and water quality was significantly deteriorated at the highest packing density of 50 no. l-1, it did not lead to mortality of fish. Therefore, it is inferred that this density can be used for short distance transportation of fingerlings of orange spotted grouper.</p>

scholarly journals Comparative Growth Performance of Oreochromis Hybrids and Selectively-Bred Strain (F8) in Malawi

2016 ◽  
Vol 5 (4) ◽  
pp. 13 ◽  
Author(s):  
Daud Kassam ◽  
Marcus Sangazi
Keyword(s):  
Water Quality ◽  
Growth Performance ◽  
Crude Protein ◽  
Experimental Period ◽  
Quality Parameters ◽  
Conversion Ratio ◽  
Food Conversion ◽  
Growth And Survival ◽  
Maize Bran ◽  
Better Than

<p>Most fish farmers in Malawi culture unimproved fish strains whose growth is slow and mature while still small. Four strains of <em>Oreochromis</em>, namely; selectively-bred/improved <em>O. shiranus</em> (F<sub>8</sub>), two reciprocal F<sub>1</sub> <em>Oreochromis</em> hybrids, and <em>O. karongae</em> as a control (mean weight 2.5 ± 0.7 g) were stocked at a density of 5fish/m<sup>2 </sup>in 9m<sup>2 </sup>hapas replicated three times, and cultured for 90 days at Bunda Fish Farm. Fish were fed twice a day with feed formulated using maize bran and soybean containing 30% crude protein throughout the experimental period. The final mean weights were significantly different (p&lt;0.05) across the treatments whereby; hybrid <em>O. shiranus</em> (male) X <em>O. karongae</em> (female) was 12.09g, hybrid <em>O. shiranus</em> (female) X <em>O. karongae</em> (male) was 9.72g, improved <em>O. shiranus</em> (F<sub>8</sub>) registered 9.23g, and <em>O. karongae</em> was the least with 9.00g. Apparent food conversion ratio was also statistically different (p&lt;0.05) across the treatments whereby; <em>O. karongae</em> was 3.63, hybrid <em>O. shiranus</em> (female) X <em>O. karongae</em> (male) was 3.25, improved <em>O. shiranus</em> (F<sub>8</sub>) was 3.16 and hybrid <em>O. shiranus</em> (male) X <em>O. karongae</em> (female) was lowest with 2.26. There were no significant differences on the water quality parameters across the treatments throughout the experimental period and were within the required ranges for growth and survival of tilapias fish species. The results suggest that <em>Oreochromis</em> hybrids may be suitable candidates for aquaculture in terms of production as they performed better than the improved <em>O. shiranus</em> and the control <em>O. karongae</em>.</p>

scholarly journals The in situ remediation of aquaculture water and sediment by commercial probiotics immobilized on different carriers

2021 ◽  
Author(s):  
Mengmeng Yi ◽  
Chun Wang ◽  
He Wang ◽  
Xi Zhu ◽  
Zhigang Liu ◽  
...  
Keyword(s):  
Water Quality ◽  
High Throughput Sequencing ◽  
Relative Concentration ◽  
Ammonia Nitrogen ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Treatment Groups ◽  
Walnut Shells ◽  
Water And Sediment ◽  
Aquaculture Water

Abstract In the present study, we investigated the effect of probiotics immobilized by oyster shells (Os), vesuvianite (Ve) and walnut shells (Ws) on the remediation of aquaculture water and sediment by analyzing the variation of ammonia-nitrogen (NH4–N), nitrate-nitrogen (NO3–N), nitrite-nitrogen (NO2–N), total nitrogen (TN), total phosphorus (TP) and chemical oxygen demand (CODCr), as well as the microbiota of the water and sediment. The positive or negative effects of the treatment groups on the water quality parameters were both observed. Compared with their effects on water quality parameters, the treatment groups had better effects on sediment parameters. Group Ve had the best remediation effect of NH4–N and NO3–N in the sediment (decreased by 5.22 and 1.66 times, respectively). Group Os showed a lower relative concentration of TN and CODCr (decreased by 3.77 and 0.95 times, respectively). The high-throughput sequencing results revealed that the immobilized probiotics increased the relative abundances of functional bacteria in the treatment groups at the phylum and genus level. The above results showed that probiotics immobilized by oyster shells, vesuvianite and walnut shells positively affected the aquaculture environment's remediation, especially the sediment.

scholarly journals Integration between bioflocs and periphyton in Nile tilapia culture tanks

2017 ◽  
Vol 39 (5) ◽  
pp. 601
Author(s):  
Davi De Holanda Cavalcante ◽  
Francisco Roberto Dos Santos Lima ◽  
Vanessa Tomaz Rebouças ◽  
Marcelo Vinícius do Carmo e Sá
Keyword(s):  
Water Quality ◽  
Growth Performance ◽  
Specific Growth ◽  
Ammonia Nitrogen ◽  
Final Body Weight ◽  
Fish Yield ◽  
Beneficial Effects ◽  
Total Ammonia Nitrogen ◽  
Total Ammonia ◽  
Reactive Phosphorus

The present study aimed to assess the possible beneficial effects of the integration between bioflocs and periphyton to the Nile tilapia’s water quality and growth performance. There were four treatments with five replicates each: (1) Control: green waters, (2) Periphyton: substrate-based system, (3) BFT: bioflocs technology for aquaculture, and (4) Biophyton: integration between bioflocs and periphyton. Fish (1.63 ± 0.07 g) were reared for 10 weeks in twenty 250 L outdoor tanks. Two polyethylene boards were vertically set out in the Periphyton and Biophyton tanks as underwater substrates. The C: N ratios of water in the BFT and Biophyton tanks were adjusted to 15:1 with dry molasses applications. The concentrations of total ammonia nitrogen were higher in the Control and Periphyton tanks than in the BFT and Biophyton ones. On the other hand, the concentrations of reactive phosphorus were higher in the BFT and Biophyton tanks than in the Control and Periphyton ones. The fish final body weight, specific growth rate and fish yield have not differed between the tanks. The integration between bioflocs and periphyton has not brought clear benefits to tilapia culture on water quality and growth performance.  

scholarly journals High levels of total ammonia nitrogen as NH4+ are stressful and harmful to the growth of Nile tilapia juveniles - doi: 10.4025/actascibiolsci.v35i4.17291

2013 ◽  
Vol 35 (4) ◽  
Author(s):  
Francisco Jackes Rodrigues da Silva ◽  
Francisco Roberto dos Santos Lima ◽  
Diego Alves do Vale ◽  
Marcelo Vinícius do Carmo e Sá
Keyword(s):  
Nile Tilapia ◽  
Ammonia Nitrogen ◽  
Total Ammonia Nitrogen ◽  
Total Ammonia

scholarly journals Mannanoligosaccharides as a Carbon Source in Biofloc Boost Dietary Plant Protein and Water Quality, Growth, Immunity and Aeromonas hydrophila Resistance in Nile Tilapia (Oreochromis niloticus)

Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1724 ◽  
Author(s):  
Asmaa T.Y. Kishawy ◽  
Alaa H. Sewid ◽  
Hend S. Nada ◽  
Mohamed A. Kamel ◽  
Shefaa A.M. El-Mandrawy ◽  
...  
Keyword(s):  
Carbon Source ◽  
Aeromonas Hydrophila ◽  
Nile Tilapia ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Ammonia Nitrogen ◽  
Feed Conversion ◽  
Reactive Protein ◽  
Bacillus Spp ◽  
Total Ammonia

The aim of the present study was to evaluate mannan oligosaccharides (MOS) or glycerol (GLY) as a carbon source on biofloc systems of Nile tilapia (O. niloticus) juveniles. Fish (n = 750) were reared in open flow (Controls) or biofloc systems (B-GLY and B-MOS) fed with a plant or fish protein source over a period of twelve weeks. Total ammonia nitrogen and nitrate decreased in the biofloc groups, while biofloc volume increased in B-MOS. Compared to the controls, B-MOS and B-GLY exhibited higher weight gain and improved feed conversion, irrespectively of the diet. Serum level of C-reactive protein was reduced, while IgM and lysozyme activity was higher in the B-MOS fish, compared to other groups. Intestinal Bacillus spp. count was increased, whereas Vibrio, Aeromonas and Pseudomonas spp. counts decreased in B-MOS reared groups, compared to the other groups. The proinflammatory cytokine (IL-8 and IFN-γ) transcript expression was upregulated in B-MOS more than B-GLY reared groups. Compared to the controls, the virulence of Aeromonas hydrophila was decreased in the B-MOS and B-GLY groups. The results indicate several benefits of using MOS as a carbon source in a biofloc Nile tilapia system; a cost benefit analysis is required to assess the economic viability of this.

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