Evaluation of physicochemical parameters of waste water from rainbow trout fish farms and their impacts on water quality of Koohrang stream – Iran

Fadaeifard, Firooz

doi:10.5897/ijfa12.007

Cited by 13 publications

(15 citation statements)

References 17 publications

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“…Likewise, different prebiotics such as fructo‐oligosaccharides (FOS), inulin, galacto‐oligosaccharides (GOS), Bio‐MOS ® , containing mannan oligosaccharides (Fadaeifard et al . ) derived from yeast, and Previda ™ containing galactoglucomannans positively affect intestinal morphology in red drum ( Sciaenops ocellatus ) (Zhou et al . ).…”

Section: Discussionmentioning

confidence: 99%

“…However, in case of other fermentable fibres, Dimitroglou et al (2009) stated that supplementation of diet with 2 g kg À1 MOS increased gut absorptive surface area, microvillus length and thickness of rainbow trout and observed an increase in intestinal villus length when rainbow trout were administrated with 1.5 g MOS kg À1 and 3 g MOS kg À1 (Yilmaz et al 2007). Likewise, different prebiotics such as fructo-oligosaccharides (FOS), inulin, galacto-oligosaccharides (GOS), Bio-MOS Ò , containing mannan oligosaccharides (Fadaeifard et al 2012) derived from yeast, and Previda TM containing galactoglucomannans positively affect intestinal morphology in red drum (Sciaenops ocellatus) (Zhou et al 2010). The fermentation of dietary carbohydrate can influence gut morphology through the production of SCFA (Scheppach 1994;Kihara & Sakata 1997), which is possibly the reason for the improved intestinal morphology observed in the present study following fermentable fibre (Vitacel Ò ) administration.…”

Section: Figurementioning

confidence: 99%

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Haemato-immunological and serum biochemical parameters, intestinal histomorphology and growth performance of rainbow trout (Oncorhynchus mykiss) fed dietary fermentable fibre (Vitacel^®)

2016

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The aim of this study was to investigate the effects of dietary fermentable fibre (Vitacel®) on haemato‐immunological and serum biochemical parameters, intestinal histomorphology, growth performance and proximate body composition of rainbow trout (Oncorhynchus mykiss). One hundred and twenty fish (81.65 ± 1.49 g) were fed diets containing 0 and 10 g kg−1 fermentable fibre (Vitacel®) for 50 days. At the end of feeding trial, growth performance parameters were significantly improved in fermentable fibre (Vitacel®)‐fed fish. Although feeding on fermentable fibre (Vitacel®)‐supplemented diet had no remarkable effect on haematological parameters (RBC, Htc and Hb) (P > 0.05), white blood cell (WBC) count and monocyte level were significantly affected (P = 0.040 and P = 0.020, respectively). In case of serum biochemical parameters, a significant increase and decrease were observed in serum total protein (P = 0.040) and cholesterol level (P = 0.000), respectively. Also, lysozyme level was significantly increased following administration of Vitacel® in diet (P = 0.006). Histomorphological evaluations revealed that villus length (P = 0.004) and tunica muscularis thickness (P = 0.000) were significantly higher in fermentable fibre (Vitacel®)‐fed fish. These results indicate that fermentable fibre can be considered as a dietary supplement for improving the health status and performance of rainbow trout.

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Section: Discussionmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Haemato-immunological and serum biochemical parameters, intestinal histomorphology and growth performance of rainbow trout (Oncorhynchus mykiss) fed dietary fermentable fibre (Vitacel^®)

2016

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“…The overall characteristics of emission sources, such as their distance to the headwater, the average discharge flow rate, and initial concentrations, are shown in Table 1. These are the specifications related to the mixture of residential areas and fish farm effluents (Fadaeifard, et al 2012) discharged by branches to the main stream. It is noteworthy that the effluents are currently monitored by command and control (C&C) policy in regard to the concentrations of biochemical oxidation demand (BOD).…”

Section: Study Areamentioning

confidence: 99%

Equitable fund allocation, an economical approach for sustainable waste load allocation

Ashtiani

Niksokhan

Jamshidi

2015

Environ Monit Assess

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This research aims to study a novel approach for waste load allocation (WLA) to meet environmental, economical, and equity objectives, simultaneously. For this purpose, based on a simulation-optimization model developed for Haraz River in north of Iran, the waste loads are allocated according to discharge permit market. The non-dominated solutions are initially achieved through multiobjective particle swarm optimization (MOPSO). Here, the violation of environmental standards based on dissolved oxygen (DO) versus biochemical oxidation demand (BOD) removal costs is minimized to find economical total maximum daily loads (TMDLs). This can save 41% in total abatement costs in comparison with the conventional command and control policy. The BOD discharge permit market then increases the revenues to 45%. This framework ensures that the environmental limits are fulfilled but the inequity index is rather high (about 4.65). For instance, the discharge permit buyer may not be satisfied about the equity of WLA. Consequently, it is recommended that a third party or institution should be in charge of reallocating the funds. It means that the polluters which gain benefits by unfair discharges should pay taxes (or funds) to compensate the losses of other polluters. This intends to reduce the costs below the required values of the lowest inequity index condition. These compensations of equitable fund allocation (EFA) may help to reduce the dissatisfactions and develop WLA policies. It is concluded that EFA in integration with water quality trading (WQT) is a promising approach to meet the objectives.

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“…Comm. with trout farm owners), there was significant difference in reference and in impact site of Farm-B but not in (Mirrasooli et al, 2012;Pulatsu et al, 2004;Boaventura et al, 1997) while some study has shown no impact of trout farm effluents on water quality (Pradhan et al, 2008;Noroozrajabi et al, 2013;Fadaeifard et al, 2012). Overall, the concentration of all the measured major ions were low in concentration and can be considered safe for aquaculture purposes according to EPA (2001).…”

Section: Resultsmentioning

confidence: 99%

Assessment of physico-chemical parameters of rainbow trout farms for the evaluation of potential threat to natural streams in Nepal

Ghimire¹,

Niraula²,

Rai³

et al. 2017

Int. J. Environ.

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Three trout farms from Nepal were studied to investigate the changes in physico-chemical parameters and their potential threat to natural water bodies receiving the effluents. Reference and impact sites were determined in each farm so as to find out the level of impacts due to farming activities. Some of the parameters such as dissolved oxygen, turbidity, conductivity, and total dissolve solids were significantly changed in the impacted zones compared to reference sites. Similarly, concentrations of some major ions such as calcium and sodium were increased in the impacted zones. On the other hand, some of the parameters such as pH and potassium did not change in the impacted zone although their concentrations were different among farms studied. Nevertheless, the overall changes in the physico-chemical parameters did not pose health risk to the aquatic ecosystems receiving effluents from these fish farms as the concentrations were below the prescribed levels by Environmental Protection Agency (EPA) as well as Nepal Environment Statistics. This is an indication that, although fish farming activities are degrading water qualities, there is no threat to the water quality receiving the effluents yet probably due to small scale farming. The increase in number of fish farms in the same area, however might pose risk to the ecological health in the region which warrants regular monitoring.

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Evaluation of physicochemical parameters of waste water from rainbow trout fish farms and their impacts on water quality of Koohrang stream – Iran

Cited by 13 publications

References 17 publications

Haemato-immunological and serum biochemical parameters, intestinal histomorphology and growth performance of rainbow trout (Oncorhynchus mykiss) fed dietary fermentable fibre (Vitacel^®)

Haemato-immunological and serum biochemical parameters, intestinal histomorphology and growth performance of rainbow trout (Oncorhynchus mykiss) fed dietary fermentable fibre (Vitacel^®)

Equitable fund allocation, an economical approach for sustainable waste load allocation

Assessment of physico-chemical parameters of rainbow trout farms for the evaluation of potential threat to natural streams in Nepal

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Evaluation of physicochemical parameters of waste water from rainbow trout fish farms and their impacts on water quality of Koohrang stream – Iran

Cited by 13 publications

References 17 publications

Haemato-immunological and serum biochemical parameters, intestinal histomorphology and growth performance of rainbow trout (Oncorhynchus mykiss) fed dietary fermentable fibre (Vitacel®)

Haemato-immunological and serum biochemical parameters, intestinal histomorphology and growth performance of rainbow trout (Oncorhynchus mykiss) fed dietary fermentable fibre (Vitacel®)

Equitable fund allocation, an economical approach for sustainable waste load allocation

Assessment of physico-chemical parameters of rainbow trout farms for the evaluation of potential threat to natural streams in Nepal

Contact Info

Product

Resources

About

Haemato-immunological and serum biochemical parameters, intestinal histomorphology and growth performance of rainbow trout (Oncorhynchus mykiss) fed dietary fermentable fibre (Vitacel^®)

Haemato-immunological and serum biochemical parameters, intestinal histomorphology and growth performance of rainbow trout (Oncorhynchus mykiss) fed dietary fermentable fibre (Vitacel^®)