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Title: Preliminary insights into the incorporation of rosemary extract (Rosmarinus officinalis L.) in fish feed: influence on performance and physiology of gilthead seabream (Sparus aurata)
Authors: Hernández, A. 
García García, B.
Caballero, M. J. 
Hernández, M. D.
Keywords: Bass Dicentrarchus-Labrax
Liver Histology
Herbal Supplements
Metabolic Syndrome, et al
Issue Date: 2015
Publisher: 0920-1742
Journal: Fish Physiology and Biochemistry 
Abstract: Gilthead seabream (Sparus aurata) were fed a basal (control) diet and four experimental diets (R600, R1200, R1800 and R2400), containing 600, 1200, 1800 and 2400 mg kg(-1), respectively, of rosemary extract (Rosmarinus officinalis L.). At 4 and 12 weeks from the beginning of the ongrowing period, the fish were sacrificed, blood was drawn to obtain plasma and the liver and intestines were dissected. Growth and feed intake were unaffected by rosemary extract addition. A histological examination of the intestine revealed no differences among the dosages, while the liver showed a sharp decrease in hepatic steatosis in diets supplemented with rosemary extract. Furthermore, plasma alanine aminotransferase was lower with these diets at the end of the ongrowing period. Rosemary extract reduced the plasma levels of glucose and triglycerides on week 4 and glucose and HDL/LDL cholesterol ratio on week 12, suggesting better transport and energy metabolism of the lipids. Overall, the most evident effect of rosemary extract was observed with the 600 mg kg(-1) dose.
ISSN: 0920-1742
DOI: 10.1007/s10695-015-0069-2
Source: Fish Physiology and Biochemistry[ISSN 0920-1742],v. 41, p. 1065-1074
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