scholarly journals Use of probiotics Bacillus cereus var. toyoi and Bacillus subtilis C-3102 in the diet of juvenile Nile tilapia cultured in cages

2017 ◽  
Vol 43 (3) ◽  
pp. 601-606
Author(s):  
Nilton Garcia-Marengoni ◽  
Milton Cézar de Moura ◽  
Newton Tavares Escocard De Oliveira ◽  
Robie Allan Bombardelli ◽  
Daniele Menezes-Albuquerque
Keyword(s):  
Water Quality ◽  
Bacillus Subtilis ◽  
Bacillus Cereus ◽  
Proximate Composition ◽  
Nile Tilapia ◽  
Basal Diet ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Gut Colonization ◽  
Hematological Profile

This study aimed at evaluating the gut colonization by probiotics, the influence on the bacterial microflora, hematological profile, fish performance, rates body and proximate composition and water quality parameters in the cultivation of Nile tilapia juvenile of the Genetically Improved Farmed Tilapia (GIFT) strain. 1800 fry were randomly distributed into four experimental groups (T1 = basal diet (BD) without probiotic addition, T2 = BD + 0.5 % Bacillus cereus var. toyoi (BC), T3 = BD + 0.5% Bacillus subtilis C-3102 (BS); T4 = BD + 0.25 % BC + 0.25 % BS) with five replicates. Cages (0.175 m3) containing 90 tilapia fry (0.34 ± 0.06 g), were used as culture units and individually installed in 8.4 m3 ponds. Except for hemoglobin, hematocrit, glucose, and neutrophil levels, no differences in hematological profile were observed among the groups after 127 days of culture (P > 0.05). The probiotic bacteria either added individually or in combination, successfully colonized the intestines of the fish, without negatively influencing the intestinal bacterial microflora, growth rate, proximate composition, or water quality parameters (P > 0.05). Thus, dietary probiotic supplementation of juvenile Nile tilapia alters the hematological profile, especially hemoglobin, hematocrit, glucose, and neutrophil levels.

scholarly journals Evaluation of Water Quality Parameters, Growth and Proximate Composition of Juvenile Crab, Portunus pelagicus Cultured in RAS and Non RAS System

2019 ◽  
Vol 48 (10) ◽  
pp. 2143-2149
Author(s):  
S.M. Shoyaib. Kohinoor ◽  
Aziz Arshad ◽  
S.M. Nurul Amin ◽  
Mohd Salleh Kamarudin ◽  
Muhammad Aliyu Sulaiman
Keyword(s):  
Water Quality ◽  
Proximate Composition ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Portunus Pelagicus ◽  
Juvenile Crab

scholarly journals Effect of environmental factors on hematology profile of Gambusia affinis caught at Brantas River watershed, Indonesia

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 1169
Author(s):  
Asus Maizar Suryanto Hertika ◽  
Diana Arfiati ◽  
Evellin Dewi Lusiana ◽  
Renanda B.D.S. Putra
Keyword(s):  
Water Quality ◽  
Environmental Factors ◽  
Quality Parameters ◽  
Freshwater Ecosystems ◽  
Gambusia Affinis ◽  
Water Quality Parameters ◽  
Aquatic Life ◽  
River Watershed ◽  
Hematological Profile ◽  
Biomarker Analysis

Background: Contamination of freshwater ecosystems has become a major issue as it threatens public water sources as well as aquatic life. It is important to predict changes in organism health, given a known number of environmental factors and pollutant concentrations, in order to better manage contaminants through biomarker analysis. This study aims to examine the ecosystem health of the Brantas River based on its environmental condition and the hematology profile of Gambusia affinis fish present in the river. This species was chosen because of its wide distribution along the Brantas River, and because it is very tolerant, adaptable, highly abundant, and easy to catch. Methods: The study area included 10 sampling sites along the Brantas River watershed. In total, six water quality parameters were observed (temperature, pH, dissolved oxygen (DO), biological oxygen demand (BOD), ammonia concentration, and phenol concentration) and hematology measurements consisted of erythrocyte, leucocyte, and micronuclei analyses. Results: The results showed that the upstream area of Brantas River, located in Batu, was the least polluted region, while Mojokerto was the most polluted. The erythrocyte level of Gambusia affinis caught in most sampling sites was quite low. Furthermore, research revealed that the status of Gambusia affinis' hematological profile was significantly correlated (p<0.05) with water quality parameters, particularly DO, BOD, ammonia, and phenol. Conclusions: It can be concluded from these results that the hematological profile of the fish is poor due to high levels of organic waste and harmful substances.

scholarly journals Prevalence of parasitic infections on cultured Nile tilapia, Oreochromis niloticus (Linnaeus, 1758) In Bong County, Liberia

2021 ◽  
Vol 62 (1) ◽  
pp. 13-25
Author(s):  
S. Addo ◽  
S. Mullah ◽  
P. K. Ofori-Danson ◽  
S. K. K. Amponsah ◽  
J. O. Nyarko
Keyword(s):  
Water Quality ◽  
Relative Abundance ◽  
Oreochromis Niloticus ◽  
Prevalence Rate ◽  
Nile Tilapia ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Parasitic Infections ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Fish Samples

This study investigated the prevalence rate, relative abundance and mean intensity of par­asites infecting cultured Nile tilapia Oreochromis niloticus L. in three fish farms, Gbarnga, Warta and CARI in Bong County, Liberia. Organs from thirty fish samples were exam­ined from September 2016 to February 2017, along with water quality parameters. Results showed the occurrence of seven parasites including protozoans, monogeneans, digeneans, cestodes, hirudineans, nematodes and crustaceans which were organ specific in terms of infection. The prevalence of the parasites varied seasonally, with the highest numbers oc­curring in November-January. The low prevalence rate, relative abundance and mean in­tensity of the parasites showed no threat to fish farmers in Liberia. All the water quality parameters were at desirable levels for the culture of the fish except nitrite, which was beyond the threshold for sustainable fish culture. It is therefore concluded that although parasitic infections in the three farms in the Bong County were low, best farm management practices are essential.

The impact of selected water quality parameters on the inactivation of Bacillus subtilis spores by monochloramine and ozone

2006 ◽  
Vol 40 (2) ◽  
pp. 373-382 ◽  
Author(s):  
S.M. Dow ◽  
B. Barbeau ◽  
U. von Gunten ◽  
M. Chandrakanth ◽  
G. Amy ◽  
...  
Keyword(s):  
Water Quality ◽  
Bacillus Subtilis ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
The Impact

Investigation of Some Water Quality Parameters of Pond Water under Mymensingh Municipality

2015 ◽  
Vol 8 (1) ◽  
pp. 85-89
Author(s):  
F Zannat ◽  
MA Ali ◽  
MA Sattar
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Chemical Properties ◽  
Pond Water ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Urban Region ◽  
Mn Toxicity ◽  
Ph Values ◽  
Drinking Water Standard

A study was conducted to evaluate the water quality parameters of pond water at Mymensingh Urban region. The water samples were collected from 30 ponds located at Mymensingh Urban Region during August to October 2010. The chemical analyses of water samples included pH, EC, Na, K, Ca, S, Mn and As were done by standard methods. The chemical properties in pond water were found pH 6.68 to 7.14, EC 227 to 700 ?Scm-1, Na 15.57 to 36.00 ppm, K 3.83 to 16.16 ppm, Ca 2.01 to 7.29 ppm, S 1.61 to 4.67 ppm, Mn 0.33 to 0.684 ppm and As 0.0011 to 0.0059 ppm. The pH values of water samples revealed that water samples were acidic to slightly alkaline in nature. The EC value revealed that water samples were medium salinity except one sample and also good for irrigation. According to drinking water standard Mn toxicity was detected in pond water. Considering Na, Ca and S ions pond water was safe for irrigation and aquaculture. In case of K ion, all the samples were suitable for irrigation but unsuitable for aquaculture.J. Environ. Sci. & Natural Resources, 8(1): 85-89 2015

Assessement of Water Quality Parameters in Some Potential Pollutant Areas from Romania

2018 ◽  
Vol 69 (8) ◽  
pp. 2045-2049
Author(s):  
Catalina Gabriela Gheorghe ◽  
Andreea Bondarev ◽  
Ion Onutu
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Surface Water Quality ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Quality Data ◽  
Chemical Parameters ◽  
Water Quality Data ◽  
Pollutant Sources ◽  
Water Quality Forecasting

Monitoring of environmental factors allows the achievement of some important objectives regarding water quality, forecasting, warning and intervention. The aim of this paper is to investigate water quality parameters in some potential pollutant sources from northern, southern and east-southern areas of Romania. Surface water quality data for some selected chemical parameters were collected and analyzed at different points from March to May 2017.

Influence of Discharges from Storage Reservoirs on the Tastes and Odours Appearing in the Seine and Marne Rivers

1982 ◽  
Vol 14 (4-5) ◽  
pp. 43-58 ◽  
Author(s):  
M Rizet ◽  
J Mouchet
Keyword(s):  
Water Quality ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Severe Drought ◽  
Storage Reservoirs ◽  
Metabolite Concentrations

This study was conducted in order to understand the taste and odour problems that occurred in the Seine and the Marne rivers during the severe drought of 1976. Samples were taken every 15 days from several locations in the rivers themselves and from storage reservoirs upstream from Paris. Algae and actinomycetes were identified and counted. Metabolite concentrations were measured. These data were correlated with threshold odor numbers and bacteriological water quality parameters.

scholarly journals Spatio-Temporal Analysis of Water Quality Parameters in Machángara River with Nonuniform Interpolation Methods

Water ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 507 ◽  
Author(s):  
Iván Vizcaíno ◽  
Enrique Carrera ◽  
Margarita Sanromán-Junquera ◽  
Sergio Muñoz-Romero ◽  
José Luis Rojo-Álvarez ◽  
...  
Keyword(s):  
Water Quality ◽  
Temporal Analysis ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Interpolation Methods ◽  
Spatio Temporal
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