|
Effect of replacement of fish meal with soybean meal in diet on fatty acid profile and fillet quality changes in rainbow trout (Oncorhynchus mykiss)
|
Mehran Javaheri Baboli   , Shayan Ghobadi |
| Islamic Azad University, Ahvaz,Iran |
|
|
Abstract: (7956 Views) |
| In order to study the effect of replacementof fish meal of diet by soybean meal in the levels of 0,25,50 and 75 percent of diet, on fatty acid profile and quality changes of fillet in Rainbow trout (Oncorhynchus mykiss), four isocaleric and isonitrigenous diet was formulated and feed during 8 week. All treatment were carried out in 2 m3 fiberglass tank with 30 fish per tank. Fish were fed 3 times daily at libitum. At the end, of the experiment, fatty acid composition of fillets was evaluated and TBA at 4 c was measured over 9 days period. Results indicated that Σ N-6 PUFA in the trout fed the highest soybean meal level were significantly higher than other treatment, also Σ N-3 PUFA in the trout fed no soybean meal, was significantly higher than other treatments .fillet TBA in the trout t fed no soybean meal, was significantly higher than other treatment at 4*C over 9 days period. statistical analysis showed that effect of diet, storage time and diet×storage time on the TBA was significant in the 95 confidence level. In summery replacement of fish meal by soybean meal showed significant changes in the fatty acid profile and lipid oxidation capacity of fillets. |
|
| Keywords: Rainbow trout (Oncorhynchus mykiss), Fatty acid Soybean meal, Fish meal |
|
|
|
Type of Study: Research |
Subject:
Special
Received: 2014/01/29 | Accepted: 2014/01/29 | Published: 2014/01/29
|
|
|
|
|
|
|
| Send email to the article author |
|
|
|
| Add your comments about this article |
|
|
|
