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Dietary application of dried Rosmarinus officinalis (rosemary) leaves as a treatment for streptococcal infection was studied in tilapia, Oreochromis sp. Feeding with dried rosemary leaves significantly reduced mortality following infection with Streptococcus iniae: 44% mortality in the group fed 8% rosemary, similar to oxytetracycline treatment (43% mortality), and significantly lower than the control...
The use of Rosmarinus officinalis as a treatment against Streptococcus iniae in Oreochromis sp. (tilapia) is described. Sixteen accessions of R. officinalis were extracted in several solvents and tested in vitro against S. iniae by disk diffusion assay. All extracts were effective in inhibiting bacterial growth. The most effective was accession no. 1 when extracted in ethyl acetate, which inhibited...
Background. Natural antioxidants become increasingly important in fish processing and particularly in the preservation phase of fish raw materials. Some of them can protect lipids, containing essential unsaturated fatty acids. The aim of the present study was to determine antioxidant properties of aqueous extracts of rosemary and sage, compared with the activity of BHA (butylated hydroxyanisole) and...
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