NDLI: Effect of sustained training on glycolysis and fatty acids oxidation in swimming muscles and liver in juvenile tinfoil barb Barbonymus schwanenfeldii (Bleeker, 1854)

Content Provider	Springer Nature Link
Author	Zhu, Zhiming Song, Bolan Lin, Xiaotao Xu, Zhongneng
Copyright Year	2016
Abstract	The present study examines the effect of sustained exercise on glycolysis and fatty acids oxidation in the swimming muscles and liver in juvenile tinfoil barb (Barbonymus schwanenfeldii). The subjects were divided into one control group (water current speed of 0.0 bl s-1, body length per second) and two training groups (1.0 and 2.0 bl s−1), respectively. Results showed that the glycolysis was stimulated by high-speed training in the white muscle, accompanied by significantly increased activities of hexokinase, pyruvate kinase, and reduction in glycogen contents in training groups (P < 0.05). On the contrary, the extreme fatty acids oxidation was observed in the red muscle in high-speed training group, showed significant reduction in crude lipid content with a significant increase in the activities of hormone-sensitive lipase, β-hydroxyacyl-CoA dehydrogenase, and cytochrome C oxidase in 2.0 bl s−1 group (P < 0.05). In addition, the saturated fatty acids in the red muscle and monounsaturated fatty acids in the white muscle were used preferentially during sustained training, respectively. Furthermore, the glycogen content within the liver was also significantly reduced with increasing training intensities (P < 0.05). These results suggested that glycogen and fatty acids were all used as a fuel to support sustained swimming in two functional muscles in B. schwanenfeldii, but higher glycolysis and fatty acids oxidation were seen in white and red muscles during high-speed swimming, respectively. Furthermore, the hepatic glycogen played an important role in the supply of energy in sustained training periods in B. schwanenfeldii.
Starting Page	1807
Ending Page	1817
Page Count	11
File Format	PDF
ISSN	09201742
Journal	Fish Physiology and Biochemistry
Volume Number	42
Issue Number	6
e-ISSN	15735168
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-07-07
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sustained training Swimming muscles Glycogen Fatty acids Enzyme Freshwater & Marine Ecology Animal Physiology Animal Anatomy / Morphology / Histology Animal Biochemistry Zoology
Content Type	Text
Resource Type	Article
Subject	Physiology Medicine Biochemistry Aquatic Science

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