Enhanced intestinal health, immune responses and ammonia resistance in Pacific white shrimp (Litopenaeus vannamei) fed dietary hydrolyzed yeast (Rhodotorula mucilaginosa) and Bacillus licheniformis

Chen, Ming; Chen, Xian-Quan; Liu, Tian; Liu, Yongjian; Niu, Jin

doi:10.1016/j.aqrep.2020.100385

Cited by 23 publications

(26 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Acremonium and Rhodotorula were indicator genera in guts of Hooded Crane (Additional file 2: Table S1). Previous studies have demonstrated that the two genera might increase host's digestion and immunity (Li et al 2018;Chen et al 2020). The wintering Hooded Crane is under great pressure with food shortage and pathogen invasion (Xiang et al 2019).…”

Section: Discussionmentioning

confidence: 99%

Dramatic shifts in intestinal fungal community between wintering Hooded Crane and Domestic Goose

et al. 2021

View full text Add to dashboard Cite

Background The intestinal microbiota play remarkable roles in maintaining the health of their hosts. Recent studies focused on gut bacterial diversity in birds and poultry, with little information about the ecological functions of their gut fungal community. Methods The high-throughput sequencing was applied to compare intestinal fungal community structure between Hooded Crane (Grus monacha) and Domestic Goose (Anser anser domesticus), and infer the potential pathogens of each species at Shengjin Lake of China. Results Intestinal fungal alpha diversity was higher in Hooded Crane than Greylag Goose (Anser anser). Gut fungal community composition showed dramatic shifts between the two species. Hooded Cranes mainly eat Vallisneria natans and Potamogeton malaianus, while artificial hurl food (i.e., paddy) was the main food resource for Domestic Geese, suggesting that the variations in fungal community might be induced by different diets between the two hosts. Two enriched genera (i.e., Acremonium and Rhodotorula) which could increase host’s digestion were detected in guts of Hooded Cranes. In addition, there were 42 pathogenic amplicon sequence variants (ASVs), 17% of which shared in Hooded Crane and Greylag Goose. The Hooded Crane had higher gut fungal pathogenic diversity and abundance relative to Greylag Goose. Conclusions The study demonstrated that divergence in intestinal fungal community structure might be induced by different diets between wintering Hooded Crane and Domestic Goose. Hooded Crane might rely more on their gut fungal taxa to acquire nutrients from indigestible food resources. Our study also implied that more research should focus on intestinal pathogens in wild birds and domestic poultry, as they might increase risk of disease in other animals, even human beings. The degree of cross infection in pathogens among wild birds and sympatric poultry should be clearly verified in future study.

show abstract

Section: Discussionmentioning

confidence: 99%

Dramatic shifts in intestinal fungal community between wintering Hooded Crane and Domestic Goose

et al. 2021

View full text Add to dashboard Cite

show abstract

“…These metabolites contribute to immune development and balance the gut physiological functions [4]. Some fungal genera in the gut contribute to digestion and regulate the host's digestion efficiency [5]. Gut fungi provide crucial amino acids and facilitate lignocellulose breakdown in the host gut [6].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variations in the Gut Fungal Communities of Hooded Crane (Grus monacha) at Wintering and Stopover Sites in China

Mahtab

Zhou

Zhang

et al. 2021

Animals

View full text Add to dashboard Cite

The “gut fungal microbiome” maintains the immune system, homeostasis, and various physiological functions of an organism. Different factors shape and affect gut fungal diversity and community composition, such as environment, habitat type, food resources, and seasons during migration. Wild birds amid migration are exposed to different habitats with different environments, available food resources, and seasons, which may substantially impact their gut fungal community composition and diversity. The hooded crane (Grus monacha) is a known migratory bird that migrates over long distances and is exposed to varied habitats with different environments and food types. We investigated the differences in gut fungal diversity and community composition between wintering and stopover sites amid three migratory seasons. We deduced the gut fungal pathogenic diversity and community composition during winter, fall, and spring by using high throughput sequencing (Illumina Mi-seq), and the internal transcribed region 2 (ITS2) was examined. Samples were collected from Shengjin Lake in the winter and Lindian during the fall and spring. The dominant fungal phyla found across the three seasons were Ascomycota, Basidiomycota, Zygomycota, and Rozellomycota. The gut fungal alpha diversity showed significant shifts during winter at the wintering site compared with the fall and spring seasons at the stopover site. The fungal community composition exhibited a significant change across the three seasons (ANOSIM p = 0.001). The results also demonstrated that the diversity and relative abundance of potential pathogens also showed divergence in winter compared to fall and spring. This study provides the basis for understanding the discrepancy in gut fungal diversity and community composition during migratory seasons at both wintering and stopover grounds. It also suggests that conservation measures should be applied to the conservation of hooded cranes and other wild birds, as the risk of cross-infection increases during seasonal migration.

show abstract

“…Our previous studies have shown that the feed containing 3% YH improved the digestive enzyme activity and the ability to utilize sugars and lipids of the L. vannamei without negative effects on growth performance (Yang et al, 2020). Some studies also indicated that dietary yeast hydrolysate could enhance the immune responses in L. vannamei and improve the resistance to ammonia stress (Chen et al, 2020;Jin et al, 2018). However, it remains unknown whether dietary yeast hydrolysate has any positive effects on resistance to low salinity stress.…”

Section: Introductionmentioning

confidence: 99%

“…Some studies also indicated that dietary yeast hydrolysate could enhance the immune responses in L . vannamei and improve the resistance to ammonia stress (Chen et al, 2020; Jin et al, 2018). However, it remains unknown whether dietary yeast hydrolysate has any positive effects on resistance to low salinity stress.…”

Section: Introductionmentioning

confidence: 99%

Effect of yeast hydrolysate supplementation on the resistance of Pacific white shrimp, Litopenaeus vannamei , challenged with low salinity stress

Chen

Dong

Gyan

et al. 2021

Aquaculture Research

View full text Add to dashboard Cite

Although Pacific white shrimp, Litopenaeus vannamei is a euryhaline shrimp species, when suffering from acute low salinity stress, the survival and physiological status of the shrimp may be affected. This study aimed to investigate whether the dietary yeast hydrolysate (YH) helped Litopenaeus vannamei to respond to acute low salinity stress. Firstly, shrimp (mean weight 15.82 ± 0.08g) were randomly assigned to two groups and fed two diets containing 0% YH (YH0) and 3% YH (YH3) four times daily at a salinity of 28. After a two-week feeding trial, some shrimp fed the two diets were transferred to salinity 4 and 20 mediums and others were transferred to salinity 28 as control for a low salinity stress. Samples of shrimp were collected at 0 h, 0.5 h, 1 h, 3 h, 6 h and 9 h after transferred. Results showed that Na/K-ATPase and phenoloxidase (PO) activities were not affected, while alkaline phosphatase (AKP) and acid phosphatase (ACP) activities decreased, but the superoxide dismutase (SOD) activity increased in shrimp fed diet with yeast hydrolysate before the low salinity stress (0 h). The Na/K-ATPase activity decreased at 1 h, 3 h and 6 h due to the decrease in salinity. The Na/K-ATPase activity of shrimp fed YH3 diet increased at 1 h and 9 h but decreased at 6 h compared with that fed YH0. The AKP activity decreased at 6 h, while the ACP activity decreased at 1 h and 3 h for the salinity stress. AKP and ACP activities of shrimp fed YH3 diet decreased at 3 h and 6 h compared with that fed YH0. The PO activity decreased at 0.5 h, 1 h, 3 h and 9 h because of the decrease in salinity. However, it increased in shrimp fed YH3 diet at 1 h compared with that fed YH0 diet. The SOD activity decreased at 3 h and 6 h due to the low salinity stress.The SOD activity of shrimp fed YH3 diet decreased at 0.5 h and 9 h compared with that fed YH0. Therefore, it was concluded that the ingestion of the feed containing yeast hydrolysate improved the defence against low salinity stress by modulating the activity of Na/K-ATPase, PO and SOD enzymes, while the diet factor has less impact on the AKP and ACP activities of the organism compared with the culture salinity.

show abstract

Enhanced intestinal health, immune responses and ammonia resistance in Pacific white shrimp (Litopenaeus vannamei) fed dietary hydrolyzed yeast (Rhodotorula mucilaginosa) and Bacillus licheniformis

Cited by 23 publications

References 69 publications

Dramatic shifts in intestinal fungal community between wintering Hooded Crane and Domestic Goose

Dramatic shifts in intestinal fungal community between wintering Hooded Crane and Domestic Goose

Seasonal Variations in the Gut Fungal Communities of Hooded Crane (Grus monacha) at Wintering and Stopover Sites in China

Effect of yeast hydrolysate supplementation on the resistance of Pacific white shrimp, Litopenaeus vannamei , challenged with low salinity stress

Contact Info

Product

Resources

About