Economic Aspects of Rearing Larval ASP, &lt;i&gt;Aspius Aspius&lt;/i&gt; (L.), and IDE, &lt;i&gt;Leuciscus Idus&lt;/i&gt; (L.), In Closed Recirculating Systems

Kupren, Krzysztof; Turkowski, Konrad; Kucharczyk, Dariusz; Krejszeff, Sławomir; Żarski, Daniel; Hakuć-Błażowska, Anna; Targońska, Katarzyna; Kwiatkowski, Maciej; Jamróz, Marta; Czarkowski, Tomasz

doi:10.2478/s10086-008-0028-y

Cited by 22 publications

(15 citation statements)

References 8 publications

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“…Crucial factors leading to the improved economic performance are improved yields and prices, along with less disease costs. The increase in profitability due to RAS found in this study is in line with studies by Kupren et al (2008) on asp (Aspius Aspius) production, and Ali (2012) and Appiah-Kubi (2012) on tilapia production, although the latter only found positive effects for large farms.…”

Section: Discussionsupporting

confidence: 92%

“…Economic feasibility analyses have been carried out for some fish species, such as Murray cod in Australia (De Ionno et al, 2006), asp (Aspius Aspius) and ide (Leuciscus idus) in Poland (Kupren et al, 2008), and tilapia in Egypt (Ali, 2012) and Norway (Appiah-Kubi, 2012). Some studies conclude that RAS is an economically viable option (Kupren et al, 2008;Ali, 2012), but others argue that RAS is only feasible for large-scale production facilities (Appiah-Kubi, 2012). Past economic studies on RAS have not addressed pangasius, nor assessed the risks of RAS arising from uncertainties about different factors, such as future prices, yields, and operating expenses.…”

Section: Introductionmentioning

confidence: 99%

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Economic feasibility of recirculating aquaculture systems in pangasius farming

Pham

Meuwissen

et al. 2016

Aquaculture Economics & Management

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This study aims to analyze the economic feasibility of recirculating aquaculture systems (RAS) in pangasius farming in Vietnam. The study uses a capital budgeting approach and accounts for uncertainty in key parameters. Stochastic simulation is used to simulate the economic performance of medium and large farms operating with a traditional system or RAS. Data are obtained through structured surveys and a workshop in the Mekong River Delta. Results show that for large farms, net present value increases from an average of 589,000 USD/ha to 916,000 USD/ha after implementing RAS. Overall, the probability that RAS is a profitable investment is found to be 99% for both farm sizes. With RAS, the crucial parameters determining profitability are price, yield, costs of fingerling, feed, and initial investment. Findings on the robustness of the economic performance of RAS are useful to support public and private decision making towards increasing the sustainability of pangasius production.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Economic feasibility of recirculating aquaculture systems in pangasius farming

Pham

Meuwissen

et al. 2016

Aquaculture Economics & Management

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“…In consequence, the demand for stocking material to stock open waters is growing (Cowx, 1994;Wojda, 2004;Bolland et al, 2008). The production of barbel stocking material can generate considerable financial gains owing to its high price, caused by lower fertility and effectiveness of artificial reproduction compared to other rheophilic fish species Kupren et al, 2008;Hakuć-Błażowska et al, 2009;Targońskaet al, 2011a;Nowosad et al, 2014b).The changes in the natural environment, including the aquatic environment, that have been taking place recently have depleted biocenoses and decreased global biodiversity (Ross et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Nowosad¹,

Kucharczyk²,

Targońska³

et al. 2016

Turk. J. Fish. Aquat. Sci.

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Artificial reproduction of common barbel (Barbus barbus) under controlled conditions usually did not exceed 10% of ovulation success. The aim of the study was to optimise the process of artificial reproduction of the barbel (cultured generation F4) with thermal and hormonal stimulation The first experiment examined the effect of stimulation with thermal conditions on the ovulation and the embryos survival rates. After the optimum conditions of thermal stimulation in barbel reproduction were determined, another experiment was conducted which examined how the effectiveness of reproduction is affected by four selected hormonal preparations (CPH, hCG, Ovaprim and Ovopel). Thermal stimulation for 58 days was found to be the most effective (748 degree-days). The second experiment examined the synergistic effects of different hormonal preparations under the optimal thermal conditions as, determined in the first experiment. Among the hormones evaluated as part of this study, CPH and Ovaprim were yielded the best results as compared to control. The use of the preparations resulted in the percentage of ovulations of 90-100% and the embryo survival rate at the hatching stage was about 90%. The study concludes that thermal stimuli and hormonal applications have a synergistic effect on artificial reproduction in B, barbus.

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“…But the other freshwater species, such as ide Leuciscus idus (L.), chub Leuciscus cephalus (L.) or asp Aspius aspius (L.), need to ingest exogenous digestive enzymes with live prey (Dąbrowski 1984a, b;Kujawa 2004;Wolnicki 2005). The application of high stocking densities may positively affect production costs (King et al 2000;Kupren et al 2008). Many studies have covered densities from several tens to a maximum of 200 larvae per 1 l (King et al 2000;Kujawa 2004;Fréchette 2005;Kupren et al 2009).…”

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confidence: 99%

Influence of stocking density and type of feed on the rearing of crucian carp, Carassius carassius (L.), larvae under controlled conditions

et al. 2011

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Two experiments were conducted into the rearing of crucian carp larvae under controlled conditions in an experimental closed water system. In both cases, the rearing lasted 21 days. The first experiment concerned the initial stocking density (from 50 to 600 individuals per l), whilst the second one studied the first food offered (two types of Artemia nauplii, decapsulated Artemia cysts and three types of commercial feeds) which were applied at the moment of exogenous feeding commencement. The best results were obtained using 50 larvae per l, whilst there were no significant differences within the range 200-600 larvae per l. The application of dry feed had a negative influence on the survival and other parameters. The highest survival rate was found in the groups fed with freshly hatched Artemia naupli. The results obtained indicate that the rearing of crucian carp larvae may be successfully conducted in very high stocking densities. However, the very high sensitivity of crucian carp larvae to the type of food offered during the initial days of life should be taken into account. The data presented in this article could be very useful in crucian carp larviculture.

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Economic Aspects of Rearing Larval ASP, <i>Aspius Aspius</i> (L.), and IDE, <i>Leuciscus Idus</i> (L.), In Closed Recirculating Systems

Cited by 22 publications

References 8 publications

Economic feasibility of recirculating aquaculture systems in pangasius farming

Economic feasibility of recirculating aquaculture systems in pangasius farming

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Influence of stocking density and type of feed on the rearing of crucian carp, Carassius carassius (L.), larvae under controlled conditions

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