Dietary medicinal herbs improve growth and some non-specific immunity of red sea bream <Emphasis Type="Italic">Pagrus major</Emphasis> |
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Authors: | Ji Seung-Cheol Osamu Takaoka Gwan-Sik Jeong Si-Woo Lee Katsuya Ishimaru Manabu Seoka Kenji Takii |
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Institution: | (1) Fisheries Laboratory, Kinki University, 649-5145 Uragami, Wakayama, Japan;(2) College of Fisheries and Ocean Sciences, Chonnam National University, 550-749 Yeosu, Korea;(3) Fisheries Laboratory, Kinki University, 649-22 Shirahama, Wakayama, Japan |
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Abstract: | The effects of dietary medicinal herbs on growth and some non-specific immunity were investigated in juvenile red sea bream
Pagrus major. The fish (mean body weight 24.0±0.2g) were fed fishmeal diets supplemented with either Massa medicata (Mm), Crataegi fructus (Cf), Artemisia capillaries (Ac), Cnidium officinale (Co), or a mixture of all the herbs (HM), and a control diet without medicinal herbs, for 12 weeks. Survival, specific growth
rate, feed efficiency, condition factor and hemoglobin levels were higher in fish given herbal diets than fish given the control
diet without herbs. Significantly higher serum high density lipoprotein-cholesterol level and lysozyme activity were detected
in HM and Co diet groups, and alternative complement pathway activity was detected in the HM diet group. However, significantly
lower serum alanine aminotransferase and aspartate aminotransferase activities were obtained in all herbal diet groups compared
with the control diet group. Pathogen challenge test by intraperitoneal injection of Vibrio anguillarum indicated that highest survival was obtained in the HM diet group followed by Ac, Co, Cf, and Mm diet groups. The lowest
survival was obtained in the control group. These results reveal that medicinal herbs in diets enhance growth and some non-specific
immunity of red sea bream. |
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Keywords: | growth performance medicinal herbs non-specific immunity red sea bream |
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