scholarly journals Diatomaceous earth application to improve shrimp aquaculture: growth performance and proximate composition of Penaeus vannamei juveniles reared in biofloc at two salinities

2020 ◽  
Vol 48 (2) ◽  
pp. 197-206
Author(s):  
Emmanuel Martínez-Montaño ◽  
Gustavo A. Rodríguez-Montes de Oca ◽  
José C. Román-Reyes ◽  
Rosario Pacheco-Marges ◽  
Alejandro Llanos ◽  
...  
Keyword(s):  
Water Quality ◽  
Growth Performance ◽  
Brackish Water ◽  
Proximate Composition ◽  
Specific Growth ◽  
Penaeus Vannamei ◽  
Productive Performance ◽  
Initial Body Weight ◽  
Chaetoceros Muelleri ◽  
And Control

Silicon dioxide has been used in aquaculture to increase the abundance of diatoms; however, its relationship with water quality or productive performance has not been investigated. Our study evaluated the effect of diatomite on water quality, growth performance and proximate composition of Penaeus vannamei reared in seawater (E1) and brackish water (E2) with biofloc. Two independent experiments (E1 and E2), each one with three treatments with biofloc were evaluated: treatments D with a weekly addition of diatomite (10 g m-3); the treatments D plus a continuous inoculum of diatom Chaetoceros muelleri (DD); and only biofloc like control, for E1 was used post-larvae with an initial body weight (IBW) of 0.0075 g; while in E2 was used juvenile with an IBW of 1.42 g. After seven weeks in E1, non-significant differences were registered in survival, weight gain (WG), specific growth rate (SGR) and feeding conversion rate (FCR) between DD treatment and control. However, in E2, the treatment D showed significantly higher WG (9.83 g) and SGR (4.25% d-1) compared to control (7.64 g and 3.86% d-1, respectively). Conversely, the FCR was lower in treatment D (1.16) compared to control (1.49). Non-significant differences were recorded in the proximate composition for shrimp, periphyton, and biofloc, among treatments in both experiments. Levels of nitrogenous wastes were similar among treatments. While in E2, the concentration of settleable solids was significantly higher in treatments with diatomite compared to control. Our results recommend the use of diatomite to improve the growth performance of shrimps cultured in brackish water with biofloc.

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 APPLICATION OF INTEGRATED MULTI TROPIC AQUACULTURE CONCEPT IN AN ABRADED BRACKISH WATER POND

2016 ◽  
Vol 78 (4-2) ◽  
Author(s):  
Sri Rejeki ◽  
Restiana Wisnu Ariyati ◽  
Lestari Lakhsmi Widowati
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Brackish Water ◽  
Specific Growth ◽  
Natural Food ◽  
Green Mussel ◽  
Central Java ◽  
Water Pond ◽  
Brackish Water Pond ◽  
Aquaculture Production

Currently, abrasion at the northern coastline of Central Java, Indonesia, is severe. One of the biggest abrasion area is in Kaliwlingi village (Brebes District), where 800 ha of brackish water ponds were submerged. Abrasion could wipe away or damage dykes on brackish water pond and the pond can no longer be used for aquaculture production. A 5 000 m2 of netting broken dyke of brackish water pond is used for semi–intensive cultivation of milkfish, tilapia, vanamae shrimp, green mussel and Gracilaria seaweed as an application of Integrated Multi Trophic Aquaculture (IMTA) concept. The aim of this study was to determine the aquaculture production in abraded dyke on brackish water pond by measuring the growth of milk fish, tilapia, vaname shrimp, green mussel and Gracilaria based on IMTA concept. The study was carried out from May to July 2015 at Kaliwlingi Village, Brebes district. The results showed Specific Growth Rate (SGR), i.e. milk fish 2.35 % d–1; tilapia 3.8 %·d–1 vanamae shrimp 3.75 % d–1; green mussel 2.8 % d–1 and Gracilaria 4.6 % d–1. Based on the result, the water quality is good and the availability of the natural food can support the growth of milkfish, tilapia, vanamae shrimp, green muscle and seaweed at broken dyke ponds with IMTA concept.  

scholarly journals Effects of supplemented diets on the growth performance and nutrient contents of gulsha tengra, Mystus cavasius

2017 ◽  
Vol 45 (1) ◽  
pp. 61-71
Author(s):  
Kaniz Fatema ◽  
Md Farukul Islam ◽  
Nahid Sultana ◽  
Badhan Saha
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Growth Performance ◽  
Protein Content ◽  
Rice Bran ◽  
Proximate Composition ◽  
Specific Growth ◽  
Nutrient Contents ◽  
Commercial Feed

To evaluate the effects of two diets on the growth performance and nutrient contents of gulsha, Mystus cavasius was conducted. Growth performance of gulsha was found maximum in rice bran and spirulina feed (treatment T1) and the lowest was observed in commercial feed (treatment T2). Specific growth rate of gulsha was higher in treatment T1 than treatment T2. Treatment T1 had the best proximate composition (moisture 77.28%, ash 3.45%, lipid 4.31% and protein content 15.05%) and nutrient contents (calcium 115.6 mg/100g, phosphorous 166.7 mg/100g, potassium 207.23 mg/100g, magnesium 25.97 mg/100g, iron 1.85 mg/100g and manganese 0.23mg/100g). Therefore, it was found to be better option to produce healthy fish for human consumption.Bangladesh J. Zool. 45(1): 61-71, 2017

scholarly journals Influence of pyroligneous extract on water quality and productive performance of Penaeus vannamei

2019 ◽  
Vol 5 (12) ◽  
pp. 33471-33487
Author(s):  
Thales da Silva Moreira ◽  
Ana Luzia Assunção Cláudio Araújo ◽  
Thiago Bastos Bezerra Menezes ◽  
Kamar Porto Nascimento Filho ◽  
Rebeca Larangeira Lima ◽  
...  
Keyword(s):  
Water Quality ◽  
Penaeus Vannamei ◽  
Productive Performance

scholarly journals Growth Performance of Daphnia sp. Cultured in Different Concentration of Rice Washing Water

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Lukman Anugrah Agung ◽  
Muh. Herjayanto ◽  
Edo Ahmad Solahudin ◽  
Rizky Muliani Dwi Ujianti
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Population Density ◽  
Specific Growth Rate ◽  
Growth Performance ◽  
Specific Growth ◽  
Growth Parameters ◽  
Initial Density ◽  
Young Stage ◽  
Washing Water

Abstract. This study aimed to investigate the effect of the administration of rice washing water in culture medium on the growth performance of Daphnia sp. This research using three different doses of rice washing water i.e 1 mL/L, 3mL/L, and 5 mL/L. Daphnia sp. was cultured with an initial density of 20 ind/L. Observed parameters include growth parameters (population density, size and specific growth rate) and water quality. This result showed that a concentration of 3 mL/L created the highest population of Daphnia sp. density about 620±20 ind/L, number small size (young stage) 81.2%, and the highest specific growth rate about 56.68±0.55%. The water quality content of  DO, temperature and pH during this study were in the good range of Daphnia sp. life and reproduction. The research has a conclusion that rice washing water can be used to nutritional sources of Daphnia sp. In the future, it is necessary to make further observations about the reproductive performance of Daphnia sp, given rice washing water through clone culture.Keywords: Live food, Population density, Rice washing water, Size of Daphnia sp., Specific growth rate

The effect of type of water supply on water quality in a developing community in South Africa

1997 ◽  
Vol 35 (11-12) ◽  
pp. 35-40 ◽  
Author(s):  
B. Genthe ◽  
N. Strauss ◽  
J. Seager ◽  
C. Vundule ◽  
F. Maforah ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
E Coli ◽  
Guideline Values ◽  
Developing Communities ◽  
Quality Guideline ◽  
And Control ◽  
The Relationship

Efforts to provide water to developing communities in South Africa have resulted in various types of water supplies being used. This study examined the relationship between the type of water supply and the quality of water used. Source (communal taps, private outdoor and indoor taps) and point-of-use water samples were examined for heterotrophic plate counts (HPC), total and faecal coliforms, E. coli, and coliphages. Ten percent of samples were also analysed for enteric viruses, Giardia and Cryptosporidium. Approximately 320 households were included in a case-control study. In addition, a cross-sectional study was conducted. Both studies examined the relationship between different types of water facilities and diarrhoea among pre-school children. The source water was of good microbial quality, but water quality was found to have deteriorated significantly after handling and storage in both case and control households, exceeding drinking water quality guideline values by 1-6 orders of magnitude. Coliphage counts were low for all water samples tested. Enteric viruses and Cryptosporidium oocysts were not detected. Giardia cysts were detected on one occasion in case and control in-house samples. Comparisons of whether in-house water, after handling and storage, complied with water quality guideline values demonstrated households using communal taps to have significantly poorer quality than households using private outdoor or indoor taps for HPC and E. coli (χ2 = 14.9, P = 0.001; χ2 = 6.6, P = 0.04 respectively). A similar trend (although not statistically significant) was observed for the other microbial indicators. The cross-sectional study demonstrated an apparent decrease in health risk associated with private outdoor taps in comparison to communal taps. This study suggests that a private outdoor tap is the minimum level of water supply in order to ensure the supply of safe water to developing communities.

Sign in / Sign up

Export Citation Format

Share Document