اخبار و اعلانات

 آمار

تعداد نشریات283
تعداد نشریات سازمان81
تعداد شماره‌ها2,727
تعداد مقالات31,057
تعداد مشاهده مقاله28,396,343
تعداد دریافت فایل اصل مقاله16,276,141
Ansarifard, Fatemeh, Rajabi Islami, Houman, Shamsaie Mehrjan, Mehdi, Soltani, Mehdi. (1397). Effects of Arthrospira platensis on growth, skin color and digestive enzymes of Koi, Cyprinus carpio. سامانه مدیریت نشریات علمی, 17(2), 381-393. doi: 10.22092/ijfs.2018.115878
Fatemeh Ansarifard; Houman Rajabi Islami; Mehdi Shamsaie Mehrjan; Mehdi Soltani. "Effects of Arthrospira platensis on growth, skin color and digestive enzymes of Koi, Cyprinus carpio". سامانه مدیریت نشریات علمی, 17, 2, 1397, 381-393. doi: 10.22092/ijfs.2018.115878
Ansarifard, Fatemeh, Rajabi Islami, Houman, Shamsaie Mehrjan, Mehdi, Soltani, Mehdi. (1397). 'Effects of Arthrospira platensis on growth, skin color and digestive enzymes of Koi, Cyprinus carpio', سامانه مدیریت نشریات علمی, 17(2), pp. 381-393. doi: 10.22092/ijfs.2018.115878
Ansarifard, Fatemeh, Rajabi Islami, Houman, Shamsaie Mehrjan, Mehdi, Soltani, Mehdi. Effects of Arthrospira platensis on growth, skin color and digestive enzymes of Koi, Cyprinus carpio. سامانه مدیریت نشریات علمی, 1397; 17(2): 381-393. doi: 10.22092/ijfs.2018.115878

Effects of Arthrospira platensis on growth, skin color and digestive enzymes of Koi, Cyprinus carpio

Iranian Journal of Fisheries Sciences
مقاله 10، دوره 17، شماره 2، تیر 2018، صفحه 381-393    اصل مقاله (403.79 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22092/ijfs.2018.115878
نویسندگان
Fatemeh Ansarifard؛ Houman Rajabi Islami* ؛ Mehdi Shamsaie Mehrjan؛ Mehdi Soltani
Islamic Azad University, Science & Research Branch
چکیده
This study evaluated the effects of diets containing 0, 2.5, 5, 7.5 and 10% Arthrospira platensis on skin pigmentation, growth performance, and digestive enzymes of (Koi, Cyprinus carpio). A completely randomized experimental design was developed with five treatments and three replicates. One hundred and fifty koi fish with average initial weight of 30±1g were assigned to fifteen experimental tanks. The experiment lasted for eight weeks. Koi fish  fed with 5% A. platensis showed a significant lower growth performance than those fed with 7.5 and 10% A. platensis (p<0.05). However, carotenoid (astaxanthin) concentrations of skin significantly increased with increased levels alga (p<0.05). Inclusion of 10% A. platensis as a natural pigment source resulted in the highest astaxanthin deposition in skin. The highest values of a* (redness) and b* (yellowness) were observed in fish skin fed with 10%A. platensis. The results demonstrate that A. platensis can be introduced as a natural carotenoid source in koi fish diets. The activities of protease, amylase and lipase in dietary supplementation of  A. platensis were significantly higher than those of the control group. Liver enzymeze also decreased significantly by dietary supplementation (p<0.05). However, inclusion of 5-10% A. platensis in diets did appear to have a significant positive effect on growth rates, pigmentation, and improvement of digestive and liver enzymes activities.
کلیدواژه‌ها
Arthrospir platensis؛ Pigmentation؛ Growth؛ carotenoids؛ koi
آمار
تعداد مشاهده مقاله: 351
تعداد دریافت فایل اصل مقاله: 257


counter
سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب