Toxicological Evaluation of Dietary Garlic (Allium sativum) Powder in European Sea Bass Dicentrarchus labrax Juveniles

Latife Ceyda Irkin, Murat Yigit, Sevdan Yilmaz, Masashi Maita

Department of Aquaculture, Faculty of Marine Sciences and Technology, Canakkale Onsekiz Mart University, Canakkale, Turkey.
Graduate School of Marine Science and Technology, Tokyo University of Marine Sciences and Technology, Course of Applied Biosciences, Konan 4-5-7, Minato-ku, Tokyo, Japan.

DOI: 10.4236/fns.2014.511109                

Abstract

The effects of dietary garlic (Allium sativum) powder as a feed additive on hematological and biochemical health characteristics of European Sea bass Dicentrarchus labrax juveniles were studied. Experimental fish were fed diets supplemented with garlic powder at 0 (control), 2%, 4%, or 6% levels for a period of 60 days. Results showed that the red blood cell count (RBC), hemoglobin (Hb) concentration, hematocrit (%), and mean corpuscular Hb in fish fed garlic powder diets at dietary inclusion levels of 4% and 6%, were significantly lower than the control values. Serum glucose was significantly lower in Sea bass that were fed garlic powder diets (4% and 6%) compared to the control group. Serum triglyceride and globulin levels in fish fed a 4% garlic powder diet were significantly higher than the control values, whereas these two variables in the 2% and 6% garlic treatments were similar to the control values. The cholesterol levels in the 2% and 6% treatment groups were lower than the value recorded for the control group. As a result, it is suggested that garlic powder supplementation in diets for Sea bass juveniles should not exceed 2%. The present study is the first attempt to examine the effects of dietary garlic powder on the hematological and biochemical status in Sea bass juveniles.

Keywords

Dietary Garlic, Allium sativum, European Sea Bass, Dicentrarchus labrax, Blood Biochemistry, Toxicological Evaluation

Conflicts of Interest

The authors declare no conflicts of interest.

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