https://krishi.icar.gov.in/jspui/bitstream/123456789/1601/1/317-2014%20-%20Shyne%20Biofloc%20dietary%20supplementation%20%281%29%20%281%29.pdf

Effect of dietary supplementation of biofloc on growth performance and digestive enzyme activities in Penaeus monodon

Enhancement of immune response and antioxidant status of Litopenaeus vannamei juvenile in biofloc-based culture tanks manipulating high C/N ratio of feed input

Use of probiotics in aquaculture of China-a review of the past decade.

The Pacific white shrimp Litopenaeus vannamei is the most important crustacean species in aquaculture, accounting for 70% of the total shrimp production in the world. In the past decade, development of the shrimp industry has been greatly impeded by disease prevalence, poor growth in low salinity inland water, dietary use of plant ingredients, and antibiotic overuse. The animal gut is a vital organ, and most of the gut functions, such as the functions of immunity, health regulation and nutrient absorption, are achieved by bacterial metabolism in the gut. Therefore, understanding the role of the gut microbiota of L. vannamei is important for improving the performance and production of L. vannamei in aquaculture. This paper summarizes the recent advancements in research on the composition of the gut microbiota of L. vannamei, the factors that influence the microbiota, and nutritional manipulation of the gut microbiota. In addition, based on the review, current problems are raised and future studies ...

Gut Microbiota and its Modulation for Healthy Farming of Pacific White Shrimp Litopenaeus vannamei

Probiotics in shellfish aquaculture

Effect of marine red yeast Rhodosporidium paludigenum on growth and antioxidant competence of Litopenaeus vannamei

Populations of marine red yeast from shrimps and the environments of shrimp culture were investigated from various areas at Zhanjiang in China. All strains were studied for the production of biomass and carotenoids. We isolated 88 marine red yeast strains and the average populations of marine red yeast in seawater and the water from shrimp culture ponds were 70.0 and 172.4 CFU per 100 ml water, respectively. For shrimp samples, average populations of marine red yeast from gills, intestines, and stomachs were 178.0, 15.0, and 8.0 CFU per shrimp, respectively. The isolates were grouped into nine species belonging to three genera as follows: Rhodosporidium, Rhodotorula, and Sporidiobolus. R. sphaerocarpum had the highest average biomass yield (10.3 ± 0.88 g/l), followed by S. ruineniae (10.1 g/l) and Rh. mucilaginosa (9.9 ± 1.75 g/l). R. paludigenum had the highest average carotenoid yield (2.83 ± 0.589 mg/l), followed by S. pararoseus (2.72 mg/l) and R. sphaerocarpum (2.59 ± 0.454 mg/l). The results showed that marine red yeasts were normal microbial components in the environments of shrimp culture and shrimps, and carotenoids are abundant in these marine red yeast.

Distribution of marine red yeasts in shrimps and the environments of shrimp culture.

(Received 7.3.12, Accepted 6.5.12) Abstract The effects of orally-administered dry and live marine red yeast Rhodosporidium paludigenum on antioxidant-related gene expression in the hepatopancreas and hemocytes of Litopenaeus vannamei were investigated by RT-PCR. In the hepatopancreas of L. vannamei fed dry yeast, manganese superoxidate dismutase (SODMn) and catalase (CAT) were enhanced while glutathione peroxidase (GPx) and ferritin remained at the same levels as in the control group. In the hepatopancreas of L. vannamei fed live yeast, SODMn and ferritin were higher than in the control. In hemocytes of L. vannamei fed dry yeast, SODMn was lower, ferritin was similar, and CAT and GPx fluctuated, in comparison to the control. In hemocytes of L. vannamei fed live yeast, SODMn was lower, ferritin was higher, and CAT and GPx tended to be lower than in the control group. Results suggest that consumption of the marine red yeast, R. paludigenum, can stimulate antioxidant gene expression in the hepatopancreas of shrimp.

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Shi-Ping Yang

Papers

Effect of marine red yeast Rhodosporidium paludigenum on growth and antioxidant competence of Litopenaeus vannamei

Distribution of marine red yeasts in shrimps and the environments of shrimp culture.

Effect of Marine Red Yeast Rhodosporidium paludigenum on Antioxidant-Related Gene Expression in Litopenaeus vannamei

Silencing of Nrf2 in Litopenaeus vannamei, decreased the antioxidant capacity, and increased apoptosis and autophagy.

A novel C-type lectin for Litopenaeus vannamei involved in the innate immune response against Vibrio infection.