Effects of Bacillus licheniformis on the growth, antioxidant capacity, intestinal barrier and disease resistance of grass carp (Ctenopharyngodon idella)

Publication date: Available online 14 December 2019Source: Fish &Shellfish ImmunologyAuthor(s): Lu Qin, Jinhua Xiang, Fan Xiong, Guitang Wang, Hong Zou, Wenxiang Li, Ming Li, Shangong WuAbstractTo study the effect of dietary supplementation of Bacillus licheniformis FA6 on the growth, survival and intestinal health of grass carp, we assessed the antioxidant capacity, intestinal barrier, expression levels of immune genes, and the resistance to Aeromonas hydrophila AH-1 infection. Experimental setup comprised three groups (90 specimens each; average initial weight = 16.5 g): the control group was fed the basal diet without B. licheniformis, the low-dose (LD) group was supplemented with B. licheniformis at the concentration of 1 × 105 cfu/g, and the high-dose (HD) group with 1 × 106 cfu/g. After 56 days of growth trial, the challenge test with A. hydrophila AH-1 was conducted for 14 days. The results revealed that the grass carp in LD group and HD group had significantly (p 
Source: Fish and Shellfish Immunology - Category: Biology Source Type: research

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Publication date: Available online 15 January 2020Source: Fish &Shellfish ImmunologyAuthor(s): Lang Lang, Minnan Bao, Weixin Jing, Wei Chen, Lan WangAbstractToll is essential in innate immune system which is important for defense against bacterial, fungal and viral infections in invertebrates. Our previous study showed that cadmium (Cd) could change the expression pattern of ShToll3 in the epithelium (gills and midgut from the freshwater crab Sinopotamon henanense) infected by Aeromonas hydrophila. To investigate the diverse innate immune roles of crustacean homolog Tolls, in this study, we cloned Shtoll1 from S. henan...
Source: Fish and Shellfish Immunology - Category: Biology Source Type: research
Publication date: Available online 11 January 2020Source: Microbial PathogenesisAuthor(s): An-Qi Ju, Shu-bao Yang, Hai-Peng Zhang, Xin Ma, Dong-Xing Zhang, Yuan-huan Kang, Shi-qiu Mei, Tong-lei Wu, Gui-Qin Wang, Ai-Dong Qian, Xiao-feng Shan, Wei-Min LuanAbstractAeromonas veronii is an important zoonotic pathogen that causes significant economic losses in the aquaculture industry. The use of probiotics in aquaculture is a practical alternative to antibiotics to promote animal health and aid in disease prevention. In the present study, we aimed to construct a recombinant Lactobacillus casei(surface-displayed or secretory) st...
Source: Microbial Pathogenesis - Category: Infectious Diseases Source Type: research
Abstract In a companion paper, we requested the Judicial Commission to correct the type strain of Aeromonas punctata from ATCC 15468T to NCMB 74T (=ATCC 23309T). Correction of this error on the 1980 Approved Lists by an Opinion of the Judicial Commission will remove the status of the name Aeromonas caviae as a junior objective synonym of A. punctata. This is important because the scientific community continues to use the name A. caviae almost exclusively instead of A. punctata. However, the corrective action of this Opinion will cause a new problem. A. punctata and A. eucrenophila will then become objective synony...
Source: International Journal of Systematic and Evolutionary Microbiology - Category: Microbiology Authors: Tags: Int J Syst Evol Microbiol Source Type: research
In conclusion, we determined that the inactive form of vitamin D3, cholecalciferol, induced anti-bacterial innate immunity pathways in Atlantic salmon primary macrophages, suggesting that its utilization as a component of a healthy aquafeed diet in Atlantic salmon could enhance the immune response against A. salmonicida.
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Publication date: May 2020Source: Microchemical Journal, Volume 154Author(s): Dongpo Xu, Kangjie Ge, Yan Chen, Shuyan Qi, Yachen Tian, Shuying Wang, Jingxuan Qiu, Xiang Wang, Qingli Dong, Qing LiuAbstractThe Co3Fe-MMOF nanoparticles with regular nanodiamond morphology were synthesized by solvothermal method. Compared with the single metal MOF materials, the Co3Fe-MMOF nanoparticles shows the obviously peroxidase-like activity that can catalyze 3,3′,5,5′-tetramethyl-benzidine (TMB) to produce a yellow chromogenic reaction in the presence of H2O2. Polydopamine (PDA) as a medium can circumvent the Co3Fe-MMOF nanop...
Source: Microchemical Journal - Category: Chemistry Source Type: research
Publication date: Available online 10 January 2020Source: Aquatic ToxicologyAuthor(s): Yasmina M. Abd El-Hakim, Walaa El-Houseiny, Abd Elhakeem EL-Murr, Lamiaa L.M. Ebraheim, Amr A. Moustafa, Amany Abdel Rahman MohamedAbstractCurrently, feed adulteration and contamination with melamine (MEL) are considered one of the serious issues in the aquatic industry. With the limited studies of MEL alone in fish, its adverse impacts on fish cannot be evaluated well. Accordingly, this study aimed to investigate the effects of MEL containing diets on the immune response, disease resistance to Aeromonas hydrophila, growth performance, c...
Source: Aquatic Toxicology - Category: Toxicology Source Type: research
Publication date: March 2020Source: Molecular Immunology, Volume 119Author(s): Wei Jiang, Jie Chen, Zhi-Ping Guo, Le Zhang, Guang-Ping ChenAbstractMotile sperm domain containing 2 (MOSPD2) is a single-pass membrane protein to which until recently little function had been ascribed. Although its mammalian homologs have been identified, the status of the mospd2 gene in lower vertebrates is still unknown. In the present study, cDNA of the mospd2 gene of barbel steed (Hemibarbus labeo) was cloned and sequenced to characterize its potential involvement in the innate immune system of this fish. Sequence analysis revealed that the...
Source: Molecular Immunology - Category: Allergy & Immunology Source Type: research
Abstract Under Rule 23a (Note 4) of the Bacteriological Code we ask the Judicial Commission to issue an opinion that will correct two errors that were made on the original 1980 Approved Lists of Bacterial Names. We request that the type strain designations for Aeromonas punctata and Aeromonas punctata subsp. punctata be corrected from ATCC 15468T to NCMB 74T. We also ask that the opinion state the 'correct' or best way to write the author citations for several other Aeromonas names in order to avoid future instability in nomenclature when the citations are given. PMID: 31922468 [PubMed - as supplied by publisher]
Source: International Journal of Systematic and Evolutionary Microbiology - Category: Microbiology Authors: Tags: Int J Syst Evol Microbiol Source Type: research
Abstract The present study investigated dietary Enteromorpha prolifera polysaccharide (EPP) on the growth performance, body composition and non-specific immunity of crucian carp Carassius auratus. Crucian carps with body weight of 51.24 ± 4.08 g were randomly divided into five groups: one group was fed with basic diet, while the other four groups were fed with diets containing 20, 40, 60 and 80 g/kg EPP. After 60 days of feeding, dietary administration of 40 g/kg EPP increased the body weight gain rate, feed conversion ratio, specific growth rate, body crude protein content, intestine digestive ...
Source: International Journal of Biological Macromolecules - Category: Biochemistry Authors: Tags: Int J Biol Macromol Source Type: research
Publication date: Available online 3 January 2020Source: Fish &Shellfish ImmunologyAuthor(s): Zhuojun Han, Yi Zhou, Xiaojin Zhang, Jinpeng Yan, Jun Xiao, Yongju Luo, Huifang Zheng, Huan ZhongAbstractGhrelin is a peptide hormone secreted by gastrointestinal tract which regulates multiple physiological processes such as appetite, metabolism, growth and gonad development in fish. In the present study, the effects of ghrelin on hybrid tilapia infected with Aeromonas hydrophila are elucidated. Juvenile hybrid tilapia fish (20.0 ± 5.0 g) were intraperitoneally injected with 0, 0.1, 1.0, or 10.0 ng/g ghrelin/bo...
Source: Fish and Shellfish Immunology - Category: Biology Source Type: research
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