دانلود مقاله A survey on association of feed fatty acids of cultivated rainbow trout (Oncorhynchus mykiss) and incidence rate of fin rot
سال انتشار: ۱۳۸۷
محل انتشار: اولین کنگره بین المللی مدیریت بهداشتی و بیماریهای آبزیان
تعداد صفحات: ۱
S Meshkini – Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
H Rahmati-holasoo – Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
S Atabakhsh – Artemia and Aquatic Animal Institute, Urmia University, Urmia, Iran
V Vahabzadeh – General Office of Fishery, West Azarbayjan.
Method & Materials: 10 fish farms were determined for sampling of fish randomly in summer in 2008. From each pond 100 rainbow trout were
examined randomly. Fin rot rate and total fin rot to caudal fin rot ratio were determined. Consuming feed of the fish were analyzed and total fat and saturated and unsaturated fatty acids value were measured using GC. Association between total fin rot and caudal fin rot to fin rot ratio with total fat and saturated and unsaturated fatty acids values of feed were studied using SPSS statistical software.
Results & Conclusion: Statistical analyses indicated that there was an adverse relationship between total fat of feed (8.61% to 13.79%) and fin rot rate (88% to 48%). Results also showed that there is significant difference (P<0.05) between three unsaturated fatty acids values (C14:1n5, C18:1n7, C20:4n6) and fin rot. There was also significant relationship between saturated and unsaturated fatty acids value of ration and rate of caudal fin rot to total fin rot (see below): C16:0, C18:0, C18:2n6 (P<0.01), C18:1n9, C18:3n3(P<0.05)