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Iranian Journal of Fisheries Sciences، جلد ۱۹، شماره ۴، صفحات ۱۶۹۰-۱۷۰۷
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عنوان انگلیسی Probiotic potential of Lactobacillus sp. strains capable of phytate breakdown isolated from dairy products for using in rainbow trout (Oncorhynchus mykiss Walbaum, 1792) diet
چکیده انگلیسی مقاله This research investigated the feasibility of using three strains Lactobacillus sp. viz. AM11, AM13, and AM14 previously isolated from dairy products to be used as probiotics in fish diet for phytase production. The bacteria grown in oxygenated media, bile salt, acid and supernatant of digestive tract  were examined for their antibiotic resistance and non-pathogenicity for using in fish feed. Results indicated that the isolates might be attractive candidates as probiotic strains in rainbow trout. All strains were capable of growth and produced phytase in a pH range from 3.0 to 8.0. The isolated strains were also resistant in bile salts and supernatant of digestive tract. No mortality has been observed in the fish injected by bacterial strains. No bacterial growth has observed in the liver, kidney and spleen media after 24 h. Therefore, the examined Lactobacillus strains were non-pathogenic. Due to the low resistance of these strains to tetracycline (antibiotic), it is suggested to avoid using tetracycline in rainbow trout farms when the bacterial strains are used as probiotic. According to the results, the three isolated resistant strains can be employed as probiotics in fish feed.
کلیدواژه‌های انگلیسی مقاله Probiotic, Lactobacillus sp., Phytase, Fish feed
نویسندگان مقاله | S.Z. Abedi
Department of Fishery, Faculty of Animal Sciences and Fisheries, Sari Agricultural Sciences and Natural Resources University, Sari, IRAN;


| S. Yeganeh
Department of Fisheries, Faculty of Animal Sciences and Fisheries, PhD student, Sari Agricultural Sciences and Natural Resources University (SANRU), Sari, Iran


| F. Moradian
Department of Basic Sciences, Faculty of Animal Sciences and Fisheries, Sari Agricultural Sciences and Natural Resources University (SANRU), Sari, Iran.


| H. Ouraji
Department of Fisheries, Faculty of Animal Sciences and Fisheries, PhD student, Sari Agricultural Sciences and Natural Resources University (SANRU), Sari, Iran
نشانی اینترنتی http://jifro.ir/browse.php?a_code=A-10-83-6&slc_lang=en&sid=1
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده aquaculture
نوع مقاله منتشر شده پژوهشی
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