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Effect of light intensity on digestion and immune responses, plasma cortisol and amino acid composition of Scylla paramamosain during indoor overwintering
Author(s) -
Li Na,
Zhou Junming,
Wang Huan,
Wang Chunlin,
Mu Changkao,
Shi Ce,
Liu Lei
Publication year - 2020
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/are.14836
Subject(s) - scylla paramamosain , biology , overwintering , food science , light intensity , intensity (physics) , composition (language) , zoology , biochemistry , ecology , optics , physics , linguistics , philosophy , gene
Overwintering is one of an important stage for aquatic animals, and light intensity has an important effect on the conservation of Scylla paramamosain during overwintering. Three different light intensity levels (0, 1.43 and 40.31 μmol m −2 s −1 ) were used to explore the effects of light intensity on digestion and immune responses, plasma cortisol and amino acid composition of S. paramamosain . This is the first report that the adult S. paramamosain can be effect by the light intensity. The results showed that S. paramamosain has a strong stress response under high light intensity. Compared with darkness condition, digestive enzyme activity was higher under light condition. S. paramamosain reared under low light conditions had enhanced immunity, and it raised in light conditions exhibited superior qualities to those cultured in dark conditions. The results of this study demonstrated that low light levels are most suitable for breeding and improving the quality of S. paramamosain .