THE STUDY OF SKIN LESIONS IN BELUGA (HUSO HUSO) FED WITH DIFFERENT DIETARY LEVELS OF AFLATOXIN B1

• Main Author: A. Sepahdari; H. Ebrahimzadeh mosavi; I. Sharifpor; A. Mottalebi; A. Khosravi; Sh. Kakolaki; H. Porali; M. Masomzadeh; A. Halajian
• Format: Article in Journal/Newspaper
• Language: Persian
• Published: Iranian Fisheries Research Organization 2008
• Subjects: Huso huso; AFB1 ORAL ADMINISTRATION; SKIN LESIONS; LESION HEALING; Agriculture; S; Aquaculture. Fisheries. Angling; SH1-691; Beluga; Beluga*
• Online Access: https://doaj.org/article/886fcffaeee84dfd9aa4825f3feb5432

In this study, 180 Beluga (Huso huso) weighing 120±0g each with a stocking density of 12 fish per tank were adapted with synthetic diet and then fed with different levels of AFBI (0, 25, 50,75 & 100ppb/kg of diets) under controlled conditions (T=18±2°C,DO=7.3ppm). The fish were fed 3% of their body weight four times a day for three months. Prevalence of skin lesions evaluated through clinical observations monthly. With regard to toxin concentration and time of exposure to AFB1 in experimental fish, different degree of skin lesions (simple hemorrhage to progressive wounds) were observed in different parts of body especially in vent, caudal peduncle, fins, and head. "Yellow sores" on head and trunk regions were considerable and led to deterioration of appearance. Prevalence of skin lesion in different treatments was 8-53.3%. After feeding with toxic diets was stopped, 16-24% healing was observed in the fish.