اخبار و اعلانات

 آمار

تعداد نشریات285
تعداد نشریات سازمان83
تعداد شماره‌ها3,101
تعداد مقالات34,620
تعداد مشاهده مقاله49,626,136
تعداد دریافت فایل اصل مقاله80,068,299
Sardar Shahraki, A., Ghaffari Moghadam, Z., Khairi, M.. (1404). Performance of cold-water fish farms (rainbow trout) in Sistan, Iran: Applying the super-efficiency envelopment analysis approach. سامانه مدیریت نشریات علمی, 25(2), 181-196. doi: 10.22092/ijfs.2025.134914
A. Sardar Shahraki; Z. Ghaffari Moghadam; M. Khairi. "Performance of cold-water fish farms (rainbow trout) in Sistan, Iran: Applying the super-efficiency envelopment analysis approach". سامانه مدیریت نشریات علمی, 25, 2, 1404, 181-196. doi: 10.22092/ijfs.2025.134914
Sardar Shahraki, A., Ghaffari Moghadam, Z., Khairi, M.. (1404). 'Performance of cold-water fish farms (rainbow trout) in Sistan, Iran: Applying the super-efficiency envelopment analysis approach', سامانه مدیریت نشریات علمی, 25(2), pp. 181-196. doi: 10.22092/ijfs.2025.134914
Sardar Shahraki, A., Ghaffari Moghadam, Z., Khairi, M.. Performance of cold-water fish farms (rainbow trout) in Sistan, Iran: Applying the super-efficiency envelopment analysis approach. سامانه مدیریت نشریات علمی, 1404; 25(2): 181-196. doi: 10.22092/ijfs.2025.134914

Performance of cold-water fish farms (rainbow trout) in Sistan, Iran: Applying the super-efficiency envelopment analysis approach

Iranian Journal of Fisheries Sciences
دوره 25، شماره 2، خرداد 2026، صفحه 181-196    اصل مقاله (533.44 K)
شناسه دیجیتال (DOI): 10.22092/ijfs.2025.134914
نویسندگان
A. Sardar Shahraki* 1؛ Z. Ghaffari Moghadam2؛ M. Khairi3
1Department of Agricultural Economics, University of Sistan and Baluchestan, Zahedan, Iran
2Agriculture Institute, Research Institute of Zabol, Zabol, Iran
3Department of Agricultural Economics and Extension, Faculty of Agriculture, Faryab University, Afghanistan
چکیده
This study examined the performance of rainbow trout (Oncorhynchus mykiss) farms in the Sistan region of Iran during 2023-2024, using the super-efficiency envelopment analysis technique.  Data were collected through structured questionnaires, and technical efficiency was evaluated using the basic Data Envelopment Analysis (DEA) approach. The findings were then compared with the super-efficiency DEA model. The average technical efficiency was 63.50% (ranging from 0.21 to 1) under the constant return to scale model and 79.35% (ranging from 0.54 to 1) under the variable return to scale model. Additionally, average scale efficiency was 76.1% (ranging from 0.38 to 1). Only 20% of the farms achieved full efficiency, exhibiting significant variations in technical efficiency. The results demonstrated that discrepancies in input consumption management were the primary factor contributing to technical inefficiency. Therefore, optimizing input management is critical for enhancing efficiency in these aquaculture systems.
کلیدواژه‌ها
Data envelopment analysis؛ Rainbow trout؛ Sistan؛ Super-efficiency
آمار
تعداد مشاهده مقاله: 3


counter
سامانه مدیریت نشریات علمی. طراحی و پیاده سازی از سیناوب