کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8495544 | 1552869 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of control strategies on the persistence of fish-borne zoonotic trematodes: A modelling approach
ترجمه فارسی عنوان
تأثیر استراتژی های کنترل بر تداوم تبادلات زونوئیدی ماهیان ماهی: رویکرد مدل سازی
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم آبزیان
چکیده انگلیسی
Fish-borne Zoonotic Trematodes (FZTs) are a risk to human health and need to be controlled. A mathematical model was developed to give insight into how and to what extent control strategies change the dynamics of FZTs on integrated agriculture-aquaculture farms. The reproduction ratio R evaluates the effects of control strategies. RÂ >Â 1 implies that the infection may persist, whereas RÂ <Â 1 implies that the infection certainly cannot persist. In the absence of control strategies (default), RÂ =Â 1.92. After implementing control strategies either (i) R and percentages infected hosts in the equilibrium did not change and FZTs persisted (ii) R became smaller, but not below 1, the new equilibrium had lower proportions of infected hosts, and FZTs persisted, or (iii) R became smaller than 1, and all hosts were FZT-free in the new equilibrium. Single chemotherapy of humans, reservoir hosts or both did not change R. Continuous chemotherapeutic treatment reduced R but not below 1 when treating only humans (RÂ =Â 1.30) or only reservoir hosts (RÂ =Â 1.69). A combination could result in RÂ <Â 1, e.g. treating all humans and >Â 54% of reservoir hosts. Snail control could result in RÂ <Â 1 with a decrease in density or increase in mortality of snails. This will occur when either transmission to snails or to fish is <Â 14% of its default value. Stocking fish at >Â 25Â g as compared to 0.5Â g that is usual in aquaculture practice, or at >Â 14Â g in combination with treating all humans, led to RÂ <Â 1. Advantage of using R for evaluating control strategies is that it provides insight into control success or failure even if it would take several decennia to observe this effect in the field.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquaculture - Volumes 408â409, 15 September 2013, Pages 106-112
Journal: Aquaculture - Volumes 408â409, 15 September 2013, Pages 106-112
نویسندگان
Annette S. Boerlage, Elisabeth A.M. Graat, Johan A. Verreth, Mart C.M. de Jong,