Responses of blood biochemistry, fatty acid composition and expression of microRNAs to heat stress in genetically improved farmed tilapia (Oreochromis niloticus)

We investigated the effects of heat stress on genetically improved farmed tilapia, focusing on metabolic and immune responses. Differences in blood parameters, serum biochemistry, muscle fatty acid composition, and microRNA (miRNA) expression were analyzed in fish under heat stress. Fish were expose...

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Veröffentlicht in:	Journal of thermal biology 2018-04, Vol.73, p.91-97
Hauptverfasser:	Bao, Jing-Wen, Qiang, Jun, Tao, Yi-Fan, Li, Hong-Xia, He, Jie, Xu, Pao, Chen, De-Ju
Format:	Artikel
Sprache:	eng
Schlagworte:	Alanine Alanine transaminase Animals Animals, Genetically Modified - metabolism Biochemistry Blood and serum parameters Blood Chemical Analysis Cholesterol Cichlids - blood Cichlids - genetics Cichlids - metabolism Fatty acid components Fatty acid composition Fatty acids Fatty Acids - metabolism Fish Fish Proteins - metabolism GIFT Heat stress Heat-Shock Response Hematocrit Hemoglobin High temperature Immune response Immune system Liver Male MicroRNA MicroRNAs - metabolism miRNA Muscles - metabolism Polyunsaturated fatty acids
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Zusammenfassung:	We investigated the effects of heat stress on genetically improved farmed tilapia, focusing on metabolic and immune responses. Differences in blood parameters, serum biochemistry, muscle fatty acid composition, and microRNA (miRNA) expression were analyzed in fish under heat stress. Fish were exposed to heat stress at 35 °C and sampled at 0, 6, 12, 24, and 48 h after exposure and compared with a control group maintained at 28 °C. The results showed that red and white blood cell counts, hemoglobin levels, and hematocrit values tended to increase (P
ISSN:	0306-4565 1879-0992
DOI:	10.1016/j.jtherbio.2018.02.007