[صفحه اصلی ]   [Archive]  
:: صفحه اصلي :: درباره نشريه :: آخرين شماره :: تمام شماره‌ها :: جستجو :: ثبت نام :: ارسال مقاله :: تماس با ما ::
:: دوره 18، شماره 3 - ( 4-1398 ) ::
جلد 18 شماره 3 صفحات 507-516 برگشت به فهرست نسخه ها
The effects of feeding rates on growth performance, feed conversion efficiency and body composition of juvenile snow trout, Schizothorax zarudnyi
چکیده:   (522 مشاهده)

This study was performed to investigate the effects of feeding rates on growth performance, feed conversion and body composition of juvenile snow trout (Schizothorax zarudnyi). For this purpose, fish with an initial body weight of 2.17±0.1 g were fed a commercial diet (40% protein, 3.8 Kcal g-1 diet) at five ration sizes of 2%, 4%, 6%, 8% and 10% of their body weight per day, for 60 days. The feeding trial was conducted in triplicate. Maximum weight gain, best feed conversion ratio (FCR), best specific growth rate (SGR %), highest energy retention (ERE %) and protein efficiency ratio (PER %) were evident for rations of 4–6% body weight. Second-degree polynomial regression analysis for PER, FCR and ERE indicated the break-points occurred at 4.9, 5.1 and 5.2% BW day−1, respectively. Maximum body protein content was obtained for 4% and 6% rations. Body moisture, fat and ash content remained unchanged. Based on the above results, it may be concluded that the 4.9-5.2% body weight per day ration is optimal for the growth, conversion efficiencies and body composition of juvenile S. zarudnyi and it entails favorable economic benefits.

متن کامل [PDF 271 kb]   (193 دریافت)    
نوع مطالعه: پژوهشي | موضوع مقاله: aquaculture
دریافت: ۱۳۹۵/۲/۲۶ | پذیرش: ۱۳۹۵/۱۰/۲۲
ارسال نظر درباره این مقاله
نام کاربری یا پست الکترونیک شما:

CAPTCHA


XML   English Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

khandan Barani H, Dahmardeh H, Miri M, Rigi M. The effects of feeding rates on growth performance, feed conversion efficiency and body composition of juvenile snow trout, Schizothorax zarudnyi. IJFS. 2019; 18 (3) :507-516
URL: http://jifro.ir/article-1-2238-fa.html

The effects of feeding rates on growth performance, feed conversion efficiency and body composition of juvenile snow trout, Schizothorax zarudnyi. مجله علوم شیلاتی ایران. 1398; 18 (3) :507-516

URL: http://jifro.ir/article-1-2238-fa.html



دوره 18، شماره 3 - ( 4-1398 ) برگشت به فهرست نسخه ها
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
Persian site map - English site map - Created in 0.05 seconds with 32 queries by YEKTAWEB 3991