کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5793216 1554167 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The economic benefits of disease triggered early harvest: A case study of pancreas disease in farmed Atlantic salmon from Norway
ترجمه فارسی عنوان
مزایای اقتصادی بیماری منجر به برداشت اولیه: مطالعه موردی بیماری لوزالمعده در ماهی قزل آلا آلوده از نروژ
کلمات کلیدی
ماهی سالمون دریای آتلانتیک، آبزی پروری، مدیریت بیماری، مزایای اقتصادی، بیماری پانکراس، مدل سازی تصادفی،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
چکیده انگلیسی
Pancreas disease (PD) is an important viral disease in Norwegian, Scottish and Irish aquaculture causing biological losses in terms of reduced growth, mortality, increased feed conversion ratio, and carcass downgrading. We developed a bio-economic model to investigate the economic benefits of a disease triggered early harvesting strategy to control PD losses. In this strategy, the salmon farm adopts a PCR (Polymerase Chain Reaction) diagnostic screening program to monitor the virus levels in stocks. Virus levels are used to forecast a clinical outbreak of pancreas disease, which then initiates a prescheduled harvest of the stock to avoid disease losses. The model is based on data inputs from national statistics, literature, company data, and an expert panel, and use stochastic simulations to account for the variation and/or uncertainty associated with disease effects and selected production expenditures. With the model, we compared the impacts of a salmon farm undergoing prescheduled harvest versus the salmon farm going through a PD outbreak. We also estimated the direct costs of a PD outbreak as the sum of biological losses, treatment costs, prevention costs, and other additional costs, less the costs of insurance pay-outs. Simulation results suggests that the economic benefit from a prescheduled harvest is positive once the average salmon weight at the farm has reached 3.2 kg or more for an average Norwegian salmon farm stocked with 1,000,000 smolts and using average salmon sales prices for 2013. The direct costs from a PD outbreak occurring nine months (average salmon weight 1.91 kg) after sea transfer and using 2013 sales prices was on average estimated at NOK 55.4 million (5%, 50% and 90% percentile: 38.0, 55.8 and 72.4) (NOK = €0.128 in 2013). Sensitivity analyses revealed that the losses from a PD outbreak are sensitive to feed- and salmon sales prices, and that high 2013 sales prices contributed to substantial losses associated with a PD outbreak.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Preventive Veterinary Medicine - Volume 121, Issues 3–4, 1 October 2015, Pages 314-324
نویسندگان
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