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https://www.readbyqxmd.com/read/27898676/dietary-butyrate-helps-to-restore-the-intestinal-status-of-a-marine-teleost-sparus-aurata-fed-extreme-diets-low-in-fish-meal-and-fish-oil
#1
Itziar Estensoro, Gabriel Ballester-Lozano, Laura Benedito-Palos, Fabian Grammes, Juan Antonio Martos-Sitcha, Liv-Torunn Mydland, Josep Alvar Calduch-Giner, Juan Fuentes, Vasileios Karalazos, Álvaro Ortiz, Margareth Øverland, Ariadna Sitjà-Bobadilla, Jaume Pérez-Sánchez
There is a constant need to find feed additives that improve health and nutrition of farmed fish and lessen the intestinal inflammation induced by plant-based ingredients. The objective of this study was to evaluate the effects of adding an organic acid salt to alleviate some of the detrimental effects of extreme plant-ingredient substitution of fish meal (FM) and fish oil (FO) in gilthead sea bream diet. Three experiments were conducted. In a first trial (T1), the best dose (0.4%) of sodium butyrate (BP-70 ®NOREL) was chosen after a short (9-weeks) feeding period...
2016: PloS One
https://www.readbyqxmd.com/read/27890799/enhancing-gilthead-seabream-immune-status-and-protection-against-bacterial-challenge-by-means-of-antigens-derived-from-vibrio-parahaemolyticus
#2
Martha Reyes-Becerril, Crystal Guluarte, Diana Ceballos-Francisco, Carlos Angulo, M Ángeles Esteban
In an attempt to control the proliferation of the pathogenic bacterium Vibrio parahaemolyticus in gilthead seabream (Sparus aurata), the immunostimulant effect of lysate and ToxA from this bacterium was evaluated. Fish were intraperitoneally injected twice (first injection, day 1 of the experiment; second injection, day 7) and sampled after one week (on days 8 and 15). Afterwards, all fish specimens were experimentally infected with V. parahaemolyticus and mortality was recovered for 1 week. Fish injected with lysate, ToxA and phosphate buffer saline (control) showed 100%, 50% and 0% survival, respectively, when challenged with the pathogen...
November 24, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27836718/terminal-carbohydrates-abundance-immune-related-enzymes-bactericidal-activity-and-physico-chemical-parameters-of-the-senegalese-sole-solea-senegalensis-kaup-skin-mucus
#3
Francisco A Guardiola, María Cuartero, María Del Mar Collado-González, F Guillermo Díaz Baños, Alberto Cuesta, Miguel Ángel Moriñigo, M Ángeles Esteban
Recently, interest in mucosal surfaces, more specifically fish skin and its secreted mucus, has greatly increased among immunologists. The abundance of terminal carbohydrates, several enzymes (proteases, lysozyme, peroxidase, alkaline phosphatase, esterases and ceruloplasmin), bactericidal activity against fish pathogenic and non-pathogenic bacteria and several physico-chemical parameters (protein concentration, pH, conductivity, redox potential, osmolarity, density and viscosity) in the skin mucus of Senegalese sole (Solea senegalensis, Kaup) have been evaluated...
November 8, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27818341/using-skin-mucus-to-evaluate-stress-in-gilthead-seabream-sparus-aurata-l
#4
Francisco A Guardiola, Alberto Cuesta, M Ángeles Esteban
The welfare of farmed fish is influenced by environmental and management factors, which may substantially increase stress levels of the animals and even endanger their survival. Three experiments to simulate different stress conditions (acute crowding, anaesthetic agents and air exposure) were developed. Cortisol levels were measured in fish skin mucus and the values obtained were correlated with those obtained in serum from the same fish specimens and also in the water surrounding the fish. Concomitantly, the effect of these stressors on immunoglobulin M (IgM) and several enzymes related to immunity were also determined in the serum and skin mucus of gilthead seabream (Sparus aurata L...
December 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27815737/studies-on-histopathological-alteration-of-three-major-organs-of-the-goldfish-carassius-auratus-l-of-india-due-to-myxozoan-infection-with-special-reference-to-scanning-electron-microscopic-observation
#5
Mandira Saha, P K Bandyopadhyay
Severe infections by the protozoan parasite belonging to the genera Myxozoa are causing serious problems in ornamental fish reared in breeding farms. Histopathological study is being used for diagnosis of the severity of diseases. Myxozoan infections result in large scale histopathological damages in different fish tissues. No information is available regarding the histopathological changes of goldfish due to infection with myxozoans. The present study deals with the histopathological changes of the gill, fin, and skin of goldfish, infected with myxozoan parasites along with an ultrastructural study using scanning electron microscope...
November 5, 2016: Parasitology Research
https://www.readbyqxmd.com/read/27808112/fish-gut-liver-immunity-during-homeostasis-or-inflammation-revealed-by-integrative-transcriptome-and-proteome-studies
#6
Nan Wu, Yu-Long Song, Bei Wang, Xiang-Yang Zhang, Xu-Jie Zhang, Ya-Li Wang, Ying-Yin Cheng, Dan-Dan Chen, Xiao-Qin Xia, Yi-Shan Lu, Yong-An Zhang
The gut-associated lymphoid tissue, connected with liver via bile and blood, constructs a local immune environment of both defense and tolerance. The gut-liver immunity has been well-studied in mammals, yet in fish remains largely unknown, even though enteritis as well as liver and gallbladder syndrome emerged as a limitation in aquaculture. In this study, we performed integrative bioinformatic analysis for both transcriptomic (gut and liver) and proteomic (intestinal mucus and bile) data, in both healthy and infected tilapias...
November 3, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27796002/digestive-physiological-characteristics-of-the-gobiidae-characteristics-of-cck-producing-cells-and-mucus-secreting-goblet-cells-of-stomach-fish-and-stomachless-fish
#7
Sang-Woo Hur, Shin-Kwon Kim, Dae-Jung Kim, Bae-Ik Lee, Su-Jin Park, Hyung-Gyu Hwang, Je-Cheon Jun, Jeong-In Myeong, Chi-Hoon Lee, Young-Don Lee
In this study, we investigated the characteristics of CCK-producing cells and mucus-secreting goblet cells with respect to stomach fish and stomachless fish of the Gobiidae in order to provide a basis for understanding the digestive physiology. Hairychin goby (Sagamia geneionema), which is stomachless fish, the numbers of mucus-secreting goblet cells is highest in the posterior intestine portion (P<0.05), while CCK-producing cells are scattered throughout the intestine. Gluttonous goby (Chasmichthys gulosus), which is stomach fish, mucus-secreting goblet cells are most abundant in the mid intestine portion (P<0...
September 2016: Balsaeng'gwa Saengsig
https://www.readbyqxmd.com/read/27787214/a-new-species-of-trichodina-ehrenberg-1830-ciliophora-trichodinidae-from-rhamdia-quelen-siluriformes-heptapteridae-and-gymnotus-sp-teleostei-gymnotidae-in-brazil
#8
Gabriela S O Hashimoto, Natalia C Marchiori, Santiago B Pádua, Márcia M Ishikawa, Juan R E Garcia, Maurício L Martins
The present study describes a new species of Trichodina found in the mucus of the body surface of 137 farmed and wild silver catfish (Rhamdia quelen) located in southern Brazil and in the gills of 99 banded knife fish (Gymnotus sp.) captured in the basin of Pantanal. Smears of the body surface mucus and gills were air dried at room temperature and impregnated with silver nitrate and stained with Giemsa for analysis of the adhesive disc, denticles and macronucleus. Characterized as a medium trichodinid, Trichodina quelenii n...
December 1, 2016: Acta Parasitologica
https://www.readbyqxmd.com/read/27786156/pathology-of-finfish-and-mud-crabs-scylla-serrata-during-a-mortality-event-associated-with-a-harbour-development-project-in-port-curtis-australia
#9
M M Dennis, B K Diggles, R Faulder, L Olyott, S B Pyecroft, G E Gilbert, M Landos
The objective of this study was to assess the extent and describe the nature of a multi-species marine finfish and crustacean disease event that occurred in Gladstone Harbour, Australia, 2011-2012. Finfish were examined for this study in January to April 2012 from sites where diseased animals were previously observed by the public. Gross abnormalities, including excessive skin and gill mucus, erythema, heavy ecto-parasitism, cutaneous ulceration, corneal opacity, and exophthalmos, were higher (25.5%) in finfish from Gladstone Harbour (n = 435) than in those from an undeveloped reference site, 250 km to the north (5...
October 27, 2016: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/27769690/dietary-lactobacillus-acidophilus-modulated-skin-mucus-protein-profile-immune-and-appetite-genes-expression-in-gold-fish-carassius%C3%A2-auratus-gibelio
#10
Marjan Hosseini, Hamed Kolangi Miandare, Seyed Hossein Hoseinifar, Peyman Yarahmadi
The objective of the present study was to investigate the effect of dietary Lactobacillus acidophilus on skin mucus protein pattern, immune and appetite related genes expression as well as growth performance in gold fish (Carassius auratus gibelio). Three hundred healthy gold fish (2.5 ± 0.05) juveniles were randomly distributed in 12 glass aquariums (400-L; 25 fish per aquaria) and fed experimental diets contain different levels of L. acidophilus (0, 1.5 × 10(8), 3 × 10(8) and 6 × 10(8)) for 8 weeks...
December 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27751916/dietary-phytoimmunostimulant-persian-hogweed-heracleum-persicum-has-more-remarkable-impacts-on-skin-mucus-than-on-serum-in-common-carp-cyprinus-carpio
#11
Seyed Hossein Hoseinifar, Fazel Zoheiri, Carlo C Lazado
Immunostimulation through the use of sustainable and eco-friendly dietary additives is one of the current prophylactic strategies in fish husbandry. Plant-based immunostimulants are highly considered for this intent, both for their scientific and practical advantages. Persian hogweed (Heracleum persicum) is a flower-bearing herb that possesses interesting pharmacological importance due to its bioactive compounds. It is commonly used as spice, food additive, dietary supplement and traditional remedy. The present study evaluated the potential of H...
December 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27746382/association-between-opisthorchis-viverrini-and-leptospira-spp-infection-in-endemic-northeast-thailand
#12
Chinh Dang Van, Galayanee Doungchawee, Sutas Suttiprapa, Yuji Arimatsu, Sasithorn Kaewkes, Banchob Sripa
Opisthorchiasis caused by Opisthorchis viverrini is an important foodborne trematodiasis in Thailand, Laos and Cambodia. Interestingly, the opisthorchiasis endemic region overlaps with an area of leptospirosis emergence. Here we report an association between opisthorchiasis and leptospirosis in Thailand. Of 280 sera collected from villagers living around the Lawa wetland complex in Khon Kaen province, 199 (71%) were seropositive for leptospirosis by immunochromatography. Individuals with O. viverrini infection had a significantly higher rate of leptospirosis than those without (P=0...
October 13, 2016: Parasitology International
https://www.readbyqxmd.com/read/27729275/immune-response-induced-by-oral-delivery-of-bacillus-subtilis-spores-expressing-enolase-of-clonorchis-sinensis-in-grass-carps-ctenopharyngodon-idellus
#13
Hongye Jiang, Tingjin Chen, Hengchang Sun, Zeli Tang, Jinyun Yu, Zhipeng Lin, Pengli Ren, Xinyi Zhou, Yan Huang, Xuerong Li, Xinbing Yu
Clonorchiasis, caused by the consumption of raw or undercooked freshwater fish containing infective metacercariae of Clonorchis sinensisis (C.sinensis), remains a common public health problem. New effective prevention strategies are still urgent to control this food-borne infectious disease. The previous studies suggested Bacillus subtilis (B. subtilis) spores was an ideal vaccines delivery system, and the C.sinensis enolase (CsENO) was a potential vaccine candidate against clonorchiasis. In the current study, we detected CsENO-specific IgM levels by ELISA in sera, intestinal mucus and skin mucus in grass carps (Ctenopharyngodon idella) through oral administration with B...
October 8, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27699803/quorum-sensing-involved-in-the-spoilage-process-of-the-skin-and-flesh-of-vacuum-packaged-farmed-turbot-scophthalmus-maximus-stored-at-4-%C3%A2-c
#14
Caili Zhang, Suqin Zhu, Haohao Wu, Abdul-Nabi Jatt, Yurong Pan, Mingyong Zeng
Fish skin has both positive and negative effects on the shelf-life of the fish. This study aimed to investigate the spoilage process of the skin and flesh of refrigerated farmed turbot (Scophthalmus maximus) with vacuum packaging. Microbial community changes were analyzed by combining culture-dependent and culture-independent methods. The results indicated that the shelf-life of vacuum-packaged refrigerated turbot was 16 d; skin mucus was the interference factor of turbot quality. The culture-dependent analysis demonstrated that the total viable counts and the population of H2 S-producing bacteria, Pseudomonas spp...
October 3, 2016: Journal of Food Science
https://www.readbyqxmd.com/read/27697558/changes-in-the-levels-of-humoral-immune-activities-after-storage-of-gilthead-seabream-sparus-aurata-skin-mucus
#15
Héctor Cordero, Alberto Cuesta, José Meseguer, M Ángeles Esteban
Skin mucus is increasingly used as a source for determining immunity-related proteins and enzymes. However, the ability to accurately measure some activities may be modified by inadequate handling and storage of the samples. This study aims to measure the effect of freezing and lyophilization at the time of collection on such activities. Fresh, frozen (immediately after collection at -20 °C and -80 °C) and lyophilized skin mucus samples obtained from the same groups of fish specimens of gilthead seabream (Sparus aurata L...
September 30, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27688756/blue-protein-with-red-fluorescence
#16
Swagatha Ghosh, Chi-Li Yu, Daniel J Ferraro, Sai Sudha, Samir Kumar Pal, Wayne F Schaefer, David T Gibson, S Ramaswamy
The walleye (Sander vitreus) is a golden yellow fish that inhabits the Northern American lakes. The recent sightings of the blue walleye and the correlation of its sighting to possible increased UV radiation have been proposed earlier. The underlying molecular basis of its adaptation to increased UV radiation is the presence of a protein (Sandercyanin)-ligand complex in the mucus of walleyes. Degradation of heme by UV radiation results in the formation of Biliverdin IXα (BLA), the chromophore bound to Sandercyanin...
October 11, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27678509/agaricus-bisporus-powder-improved-cutaneous-mucosal-and-serum-immune-parameters-and-up-regulated-intestinal-cytokines-gene-expression-in-common-carp-cyprinus-carpio-fingerlings
#17
Hassan Khodadadian Zou, Seyed Hossein Hoseinifar, Hamed Kolangi Miandare, Abdolmajid Hajimoradloo
The aim of the present study was to investigate immunomodulatory effects of Agaricus bisporus, white bottom mushroom powder (WBMP) on common carp (Cyprinus carpio) fingerlings. Carps were fed on different levels of WBMP (0, 0.5, 1 and 2%) for 8 weeks and at the end of feeding trial, skin mucus immune parameters (total Ig, lysozyme and protease activity), cytokines gene expression (TNF-alpha, IL1b, IL8) in intestine as well as serum non-specific immune parameters (total Ig, lysozyme and ACH50) were measured...
September 24, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27669173/dietary-enrichment-with-20-fish-oil-decreases-mucus-production-and-the-inflammatory-response-in-mice-with-ovalbumin-induced-allergic-lung-inflammation
#18
Jean A Hall, Jaye Hartman, Monica M Skinner, Adam R Schwindt, Kay A Fischer, William R Vorachek, Gerd Bobe, Beth A Valentine
The prevalence of asthma has increased in recent decades, which may be related to higher dietary intake of (n-6) polyunsaturated fatty acids (PUFA) and lower intake of (n-3) PUFA, e.g., those contained in fish oil. The objective of this study was to determine if dietary PUFA enrichment decreases mucus production or the inflammatory response associated with ovalbumin (OVA)-induced allergic lung inflammation. Mice (n = 10/group) were fed control, 20% fish oil, or 20% corn oil enriched diets for a total of 12 weeks...
2016: PloS One
https://www.readbyqxmd.com/read/27663374/potential-probiotics-from-indian-major-carp-cirrhinus-mrigala-characterization-pathogen-inhibitory-activity-partial-characterization-of-bacteriocin-and-production-of-exoenzymes
#19
Anjan Mukherjee, Dipanjan Dutta, Sudeshna Banerjee, Einar Ringø, Eva Marie Breines, Ellinor Hareide, Goutam Chandra, Koushik Ghosh
The study explored antagonistic activity of the cellular components of potential probiotic bacteria from mrigal (Cirrhinus mrigala) against fish pathogens with a basic insight of the chemical nature of the antagonistic compound. Totally 208 autochthonous gut bacteria were isolated, of which 22 strains revealed antagonism towards ≥2 of the six common fish pathogens. Zones of inhibition (halo diameter) were presented as score and the four most promising strains were selected as putative probiotics based on the cumulative score assigned...
October 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27635341/morpho-histological-characterisation-of-the-alimentary-canal-of-an-important-food-fish-asian-seabass-lates-calcarifer
#20
Kathiresan Purushothaman, Doreen Lau, Jolly M Saju, Syed Musthaq Sk, Declan Patrick Lunny, Shubha Vij, László Orbán
Asian seabass (Lates calcarifer) is a food fish of increasing aquaculture importance. In order to improve our understanding on the digestive system and feeding of this species, morphological and histological features of the gut were studied. Morphologically, the Asian seabass gut is defined by a short and muscular esophagus, well-developed stomach and comparatively short intestine. Mucous secreting goblet cells reactive to PAS (Periodic Acid Schiff) and AB (Alcian Blue) stain were present throughout the esophagus...
2016: PeerJ
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