scholarly journals 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)

Antibiotics ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 37
Author(s):  
Xinyi Wang ◽  
Baoliang Liu ◽  
Xiaoqiang Gao ◽  
Xi Wang ◽  
Hongxu Li ◽  
...  
Keyword(s):  
Gene Expression ◽  
Immune Responses ◽  
Growth Performance ◽  
Antioxidant Status ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Control Group ◽  
Penaeus Vannamei ◽  
Related Gene ◽  
Apoptosis Related Gene

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/m2 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.

Effect of dietary date seed meal as an alternative carbohydrate source on immune-related gene expression of Pacific white shrimp Penaeus vannamei

2019 ◽  
Vol 86 ◽  
pp. 994-998 ◽  
Author(s):  
Arash Akbarzadeh ◽  
Somayeh pakravan ◽  
Mohammad Niroomand ◽  
Kobra Babanejad Abkenar ◽  
Masoumeh Eshagh Nimvari ◽  
...  
Keyword(s):  
Gene Expression ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Seed Meal ◽  
Penaeus Vannamei ◽  
Related Gene ◽  
Carbohydrate Source ◽  
Date Seed ◽  
Immune Related Gene

Three different C: N ratios for Pacific white shrimp, Penaeus vannamei under practical conditions: Evaluation of growth performance, immune and metabolic pathways

2020 ◽  
Author(s):  
Saranya Chakrapani ◽  
Akshaya Panigrahi ◽  
Jayashree Sundaresan ◽  
Mullaivanam R. Sivakumar ◽  
Rajesh Palanisamy ◽  
...  
Keyword(s):  
Growth Performance ◽  
Metabolic Pathways ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Penaeus Vannamei

scholarly journals Replacement of Astaxanthin With Lutein in Diets of Juvenile Litopenaeus vannamei: Effects on Growth Performance, Antioxidant Capacity, and Immune Response

2021 ◽  
Vol 8 ◽  
Author(s):  
HaoHang Fang ◽  
XuanShu He ◽  
HuLong Zeng ◽  
YongJian Liu ◽  
LiXia Tian ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Growth Performance ◽  
Litopenaeus Vannamei ◽  
Control Group ◽  
Feeding Experiment ◽  
Related Gene ◽  
Initial Body Weight ◽  
Antioxidant Parameters ◽  
Similar Growth ◽  
Apoptosis Related Gene

An 8-week feeding experiment was conducted to investigate whether diet supplementation of lutein could result in similar growth performance, antioxidant capacity, and immunity of Litopenaeus vannamei when compared to dietary astaxanthin. Juvenile L. vannamei (initial body weight: 0.64 ± 0.04 g) were fed with one of five isonitrogen and isolipids diets with/without lutein or astaxanthin [control group (C); the lutein (L) groups contained 0, 62.5, 75, 87.5 ppm lutein, respectively, the astaxanthin (A) group contained 50 ppm astaxanthin]. Results showed that dietary supplementation of lutein ranging from 62.5 to 75 ppm resulted in similar growth performance (WGR, SGR, FCR, and SR) of L. vannamei compared with the A group (P > 0.05). Apart from that, no statistical difference was observed in antioxidant parameters (hemolymph T-AOC, hemolymph MDA, and RNA expression level of GSH-PX, CAT), anti-inflammatory ability (Relish, Rho, and HSP70) and apoptosis-related gene expression (Caspase3) among lutein treatments ranging from 62.5 to 87.5 ppm and the A group (P > 0.05). These results indicate that a dose of 62.5–75 ppm of lutein was suitable in the diet of L. vannamei for substituting dietary astaxanthin.

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