title: Effect of dietary herbal supplements on some physiological conditions of Sea Bass Dicentrarchus labrax.
abstract: This study was conducted in order to investigate the effects of dietary thyme Thymus vulgaris, rosemary Rosmarinus officinalis,and fenugreek Trigonella foenum graecum as feed additives on total liver fat levels and biometric indices of Sea Bass Dicentrarchus labrax. Four isonitrogenous (48% crude protein) and isocaloric(21 kJ/g) diets were formulated to contain 0% (control), or 1% of thyme, rosemary, or fenugreek. In a 45-d feeding trial, 12 fiberglass tanks (140 L) were each stocked with 17 fish (20.43 ± 0.03 g).Herbal supplemented diets significantly decreased the total liver fat, visceral fat index, viscerosomatic index, hepatosomatic index,and increased the spleen–somatic index and bile–somatic index(P<0.05). In conclusion, the results indicated that a dietary level of1.0% for thyme, rosemary, or fenugreek could improve some of the physiological parameters of Sea Bass. Thus, this work provides anew perspective for the use of medicinal herbs that can be added to fish feed to improve the status of fish organs. Thyme, rosemary, and fenugreek contain a number of different active components, which possibly play an important role in improving these conditions, but the mechanism by which this is achieved needs further and more detailed study.
authors.affiliation: Department of Aquaculture, Canakkale Onsekiz Mart University, Canakkale, Turkey. sevdanyilmaz@comu.edu.tr
authors.forename: Sevdan
authors.initials: S
authors.lastname: Yilmaz
authors.forename: Sebahattin
authors.initials: S
authors.lastname: Ergun
authors.forename: Ekrem Sanver
authors.initials: ES
authors.lastname: Celik
mesh_terms: D000273:Adipose Tissue / Q000187:drug effects / Q000502:physiology; D000821:Animal Feed / Q000032:analysis*; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001492:Bass / Q000502:physiology*; D001823:Body Composition / Q000187:drug effects; D004032:Diet / Q000662:veterinary*; D019587:Dietary Supplements; D028321:Plant Preparations / Q000494:pharmacology*
chemical_list: D028321:Plant Preparations