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


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.

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Irkin, L. , Yigit, M. , Yilmaz, S. and Maita, M. (2014) Toxicological Evaluation of Dietary Garlic (Allium sativum) Powder in European Sea Bass Dicentrarchus labrax Juveniles. Food and Nutrition Sciences, 5, 989-996. doi: 10.4236/fns.2014.511109.

Conflicts of Interest

The authors declare no conflicts of interest.


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