The Effects of Different UVA Photoperiods on the Growth Performance, Immune Responses, Antioxidant Status and Apoptosis-Related Gene Expression of the Pacific White Shrimp (Penaeus vannamei)

文献类型： 外文期刊

第一作者： Wang, Xinyi

作者： Wang, Xinyi;Liu, Baoliang;Gao, Xiaoqiang;Wang, Xi;Li, Hongxu;Xu, Liang;Zhao, Kuifeng;Huang, Bin;Wang, Xinyi;Wang, Xi;Wang, Guiming;Zhao, Kuifeng

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关键词： ultraviolet A (UVA); growth; immune parameters; antioxidant capacity; apoptosis-related gene; Penaeus vannamei

期刊名称：ANTIBIOTICS-BASEL （ 影响因子：5.222； 五年影响因子：5.396 ）

ISSN： 2079-6382

年卷期： 2022 年 11 卷 1 期

页码：

收录情况： SCI

摘要： UVA is the most common type of solar UV radiation in aquatic environments; however, the effects it causes in shrimp farming in recirculating water systems (RAS) is unclear. Thus, the growth performance, immune responses, antioxidant status and apoptosis-related gene expression in Pacific white shrimp, Penaeus vannamei (body weight 9.56 +/- 0.10 g), reared with 12L: 12D full spectrum light as background light under five UVA (peak at 400 nm) photoperiods (0L: 24D, 2L: 22D, 4L: 20D, 8L: 16D and 12L: 12D) at a light intensity of 1 W/m(2) were investigated. The results showed that the 2L: 22D and 4L: 20D UVA photoperiods enhanced the growth performance and reduced the feed conversion ratio and the shrimp mortality. Shrimp exposed to UVA (2L: 22D and 4L: 20D) also displayed higher levels of hepatopancreas catalase (CAT), superoxide dismutase (SOD), acid phosphatase (ACP), phenol oxidase (PO) and lysozyme (LZM) compared to the 8L: 16D and 12L: 12D groups. The malondialdehyde (MDA) levels increased in line with the extension of the UVA irradiation time. The mRNA expression of apoptosis-related genes in all the UVA treatments were significantly higher than with the control treatment, except for the 2L: 22D group. The results of the 2L: 22D and 4L: 20D treatments were significantly higher than those of the control group, except for LGBP. In conclusion, 2L: 22D and 4L: 20D UVA photoperiods increased growth performance and decreased FCR, improved the innate immunity and antioxidant response and reduced the mortality rate in adult shrimp.

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