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A diet of fructose-enriched Artemia improves the response of juvenile Litopenaeus vannamei shrimp to acute low-salinity challenge.
- Source :
- Aquaculture Research; Jul2017, Vol. 48 Issue 7, p3935-3949, 15p
- Publication Year :
- 2017
-
Abstract
- The Pacific white shrimp ( Litopenaeus vannamei), as an economically important species, has been reared in low-salinity water during the last decade. To investigate how juvenile L. vannamei shrimp fed with fructose-enriched Artemia respond to acute low-salinity stress, the shrimp were randomly divided into four treatment groups, three groups were fed with Artemia enriched with either 100, 200 and 300 mg L<superscript>−1</superscript> of fructose and a control group fed with Artemia with no enrichment for 10 days. The results showed that the 300 mg L<superscript>−1</superscript> fructose group demonstrated the maximum survival rate and glycogen content. Additionally, the 300 mg L<superscript>−1</superscript> fructose group showed significantly higher Na<superscript>+</superscript>/K<superscript>+</superscript>- ATPase activity, total antioxidant capacity, and expression levels of Na<superscript>+</superscript>/K<superscript>+</superscript>- ATPase α-subunit, V-H ATPase α-subunit, hexokinase, phosphofructokinase, antioxidants ( SOD, CAT, GPX) and Hsp70 mRNA when compared with the control group. Furthermore, after exposure to low salinity, the mRNA levels of phosphofructokinase, V-H ATPase α-subunit, GPX, p38, JNK and Rac1 stayed constant in shrimp fed with fructose-enriched Artemia but changed significantly in the control group. Thus, a diet of fructose-enriched Artemia can improve the osmoregulation and survival of juvenile L. vannamei shrimp exposed to low salinities. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1355557X
- Volume :
- 48
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Aquaculture Research
- Publication Type :
- Academic Journal
- Accession number :
- 123543142
- Full Text :
- https://doi.org/10.1111/are.13220