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Effects of a Commercial Multi-Strain Probiotic on Growth Performance, Muscle Antioxidant Parameters, and Fillet Shelf Life in Rainbow Trout, Oncorhynchus mykiss | ||
| Iranian Journal of Veterinary Medicine | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 25 تیر 1402 اصل مقاله (1.1 M) | ||
| نوع مقاله: Original Articles | ||
| شناسه دیجیتال (DOI): 10.22059/ijvm.2023.359644.1005400 | ||
| نویسندگان | ||
| Faramarz Amiri1؛ Afshin Akhondzadeh Basti1؛ Ali Taheri Mirghaed* 2؛ Negin Noori1؛ Parastoo Pourashoori3 | ||
| 1Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran | ||
| 2Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran | ||
| 3Department of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources,Gorgan,Iran | ||
| چکیده | ||
| Background: Probiotics are widely used in aquaculture and can improve the growth, immunity, and antioxidant system of fish; however, they can be used to increase fillet shelf life. Objectives: The present study investigated the effects of dietary supplementation with a commercial probiotic (Bio-Aqua) on growth performance, muscle composition and shelf life during refrigerated condition. Methods: Four diets were prepared containing 0 (CTR), 0.3 (0.3B), 1 (1B), and 2 (2B) g/kg of the probiotic. Triplicate groups of fish were fed the diets over 12 weeks, then the dorsal muscle chemical composition and antioxidant enzymes were determined. Fillet quality was determined after 0, 4, 8, 12, and 16 d refrigerated condition. Results: At the end of the rearing period, there was no significant difference in the growth performance of the fish among the treatments. 0.3B exhibited significantly higher muscle protein content and superoxide dismutase activity; whereas, muscle catalase and glutathione peroxidase activities significantly increased in 0.3B and 1B treatments. Fillet thiobarbituric reactive substances (TBARS), total volatile base nitrogen, total bacterial count, and psychrotrophic bacterial count exhibited elevation over time, during refrigerated condition. Dietary probiotic significantly affected the fillet concentration of TBARS, as 0.3B and 1B showed lower TBARS than CTR and 2B treatments. Total bacterial count in probiotic treatments (particularly 0.3B and 1B) were significantly lower that CRT, after 8 and 16 days in refrigerator. There were no interaction effects of dietary probiotic and refrigerated condition time on the fillet total volatile base nitrogen and psychrotrophic bacterial count. Conclusion: Based on the results, dietary 0.3 or 1 g/kg of Bio-Aqua can improve antioxidant capacity and decrease lipid peroxidation and bacterial load in the fillet of rainbow trout. | ||
| کلیدواژه‌ها | ||
| aquaculture؛ fillet quality؛ peroxidation؛ refrigeration؛ spoilage | ||
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آمار تعداد مشاهده مقاله: 137 تعداد دریافت فایل اصل مقاله: 259 |
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