Journal of aquatic animal health最新文献

{"title":"Tensile strength and knot security of five suture materials exposed to natural summer conditions of a temperate lake","authors":"Connor H. Reid,&nbsp;Steven J. Cooke","doi":"10.1002/aah.10182","DOIUrl":"10.1002/aah.10182","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":15235,"journal":{"name":"Journal of aquatic animal health","volume":"35 3","pages":"143-153"},"PeriodicalIF":1.2,"publicationDate":"2023-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9696774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of dietary phosphorus deficiency on the growth performance, hepatic lipid metabolism, and antioxidant capacity of Yellow River Carp Cyprinus carpio haematopterus","authors":"Shiyang Gao,&nbsp;Ping Sun,&nbsp;Hongtao Ren,&nbsp;Jialong Chen,&nbsp;Yi Shen,&nbsp;Zifeng Wang,&nbsp;Yuchao Huang,&nbsp;Weijun Chen","doi":"10.1002/aah.10177","DOIUrl":"10.1002/aah.10177","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":15235,"journal":{"name":"Journal of aquatic animal health","volume":"35 1","pages":"41-49"},"PeriodicalIF":1.2,"publicationDate":"2023-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9244300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Elevated CO2 levels did not induce species- or tissue-specific damage in young-of-year salmonids","authors":"Emma M. Traynor,&nbsp;Caleb T. Hasler","doi":"10.1002/aah.10180","DOIUrl":"https://doi.org/10.1002/aah.10180","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>The broad objective of our study was to use a histological approach to examine possible tissue-level effects of exposure to elevated CO₂ in freshwater young-of-year salmonids.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>To study these effects, young-of-year Arctic Char <i>Salvelinus alpinus</i>, Rainbow Trout <i>Oncorhynchus mykiss</i>, and Brook Trout <i>S. fontinalis</i> were exposed to either control levels of CO₂ (1400 μatm) or elevated levels of CO₂ (5236 μatm) for 15 days. Fish were then sampled for gill, liver, and heart tissues and histologically analyzed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Result</h3>\u0000 \u0000 <p>A species effect was observed for the length of secondary lamellae, as Arctic Char had significantly shorter secondary lamellae than the other species. No notable changes within the gills and livers of Arctic Char, Brook Trout, or Rainbow Trout exposed to elevated CO₂ were observed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Generally, our results indicated that elevated CO₂ levels over 15 days do not induce catastrophic tissue damage and it is unlikely that fish health would be seriously impacted. Ongoing research dedicated to examining how elevated CO₂ long-term may affect internal tissues of fish will allow for a more comprehensive understanding of how fish may fair with ongoing climate change and in aquaculture facilities.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15235,"journal":{"name":"Journal of aquatic animal health","volume":"35 2","pages":"78-87"},"PeriodicalIF":1.2,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aah.10180","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50144457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cutaneous ulcerative lesions of unknown etiology affecting lionfish Pterois spp. in the Gulf of Mexico","authors":"Theresa T. Cody,&nbsp;Yasunari Kiryu,&nbsp;Micah D. Bakenhaster,&nbsp;Kuttichantran Subramaniam,&nbsp;Maki Tabuchi,&nbsp;Mohammad Shamim Ahasan,&nbsp;Holden E. Harris,&nbsp;Jan H. Landsberg,&nbsp;Thomas B. Waltzek,&nbsp;Alexander Q. Fogg,&nbsp;Colin Shea,&nbsp;Deborah B. Pouder,&nbsp;William F. Patterson III,&nbsp;Meaghan E. Emory,&nbsp;Roy P. Yanong","doi":"10.1002/aah.10174","DOIUrl":"10.1002/aah.10174","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>Cutaneous ulcerative skin lesions in a complex of invasive Gulf of Mexico lionfish (Red Lionfish <i>Pterois volitans</i>, Devil Firefish <i>P. miles</i>, and the hybrid Red Lionfish × Devil Firefish) became epizootic beginning in mid-August 2017. Herein, we provide the first pathological descriptions of these lesions and summarize our analyses to elucidate the etiology of the disease.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We examined ulcerated and normal fish through gross pathology and histopathology, bacterial sampling, and unbiased metagenomic next-generation sequencing. We tracked prevalence of the disease, and we used biological health indicators (condition factor, splenosomatic and hepatosomatic index) to evaluate impacts to health, while considering sex and age as potential risk factors.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Result</h3>\u0000 \u0000 <p>Typical ulcerative lesions were deep, exposing skeletal muscle, and were bordered by pale or reddened areas often with some degree of scale loss. Only incidental parasites were found in our examinations. Most fish (86%; <i>n</i> = 50) exhibited wound healing grossly and histologically, confirmed by the presence of granulation tissues. A primary bacterial pathogen was not evident through bacterial culture or histopathology. Metagenomic next-generation sequencing did not reveal a viral pathogen (DNA or RNA) but did provide information about the microbiome of some ulcerated specimens. Compared with clinically healthy fish, ulcerated fish had a significantly lower condition factor and a higher splenosomatic index. Disease prevalence at monitored sites through July 2021 indicated that ulcerated fish were still present but at substantially lower prevalence than observed in 2017.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Although some common findings in a number of specimens suggest a potential role for opportunistic bacteria, collectively our suite of diagnostics and analyses did not reveal an intralesional infectious agent, and we must consider the possibility that there was no communicable pathogen.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15235,"journal":{"name":"Journal of aquatic animal health","volume":"35 1","pages":"20-33"},"PeriodicalIF":1.2,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aah.10174","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9606505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nannochloropsis oculata supplementation improves growth, immune response, intestinal integrity, and disease resistance of Nile Tilapia","authors":"Mona Abd El-Khalek Salem,&nbsp;Rawia Saad Adawy,&nbsp;Viola Hassan Zaki,&nbsp;Eman Zahran","doi":"10.1002/aah.10170","DOIUrl":"10.1002/aah.10170","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":15235,"journal":{"name":"Journal of aquatic animal health","volume":"34 4","pages":"184-196"},"PeriodicalIF":1.2,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10479635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First isolation of Carnobacterium maltaromaticum from farmed Rainbow Trout in Virginia","authors":"Stephen A. Smith,&nbsp;Shelley J. Newman,&nbsp;Courtney E. Harrison,&nbsp;Thomas P. Loch","doi":"10.1002/aah.10176","DOIUrl":"10.1002/aah.10176","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p><i>Carnobacterium maltaromaticum</i> is considered an emerging pathogen of salmonids in the United States and around the world.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Bacterial cultures obtained from the posterior kidney and skin of moribund Rainbow Trout <i>Oncorhynchus mykiss</i> from a commercial aquaculture facility in Virginia, USA, grew <i>C. maltaromaticum</i>, which was confirmed by additional phenotypic and molecular characterization.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Result</h3>\u0000 \u0000 <p>A presumptive diagnosis based on the clinical signs, necropsy observations, histopathology, and bacterial cultures was bacterial septicemia due to <i>C. maltaromaticum</i>.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>This represents the first documentation of <i>C. maltaromaticum</i> in Rainbow Trout from Virginia.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15235,"journal":{"name":"Journal of aquatic animal health","volume":"35 1","pages":"3-10"},"PeriodicalIF":1.2,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aah.10176","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9236905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of injection and immersion challenges of Renibacterium salmoninarum strains in Rainbow Trout","authors":"Tifani R. Watson,&nbsp;Timothy J. Bruce,&nbsp;Jie Ma,&nbsp;Kenneth D. Cain","doi":"10.1002/aah.10175","DOIUrl":"10.1002/aah.10175","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":15235,"journal":{"name":"Journal of aquatic animal health","volume":"35 1","pages":"34-40"},"PeriodicalIF":1.2,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9236595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Candida Manassasensis Infection in Mass Mortality Case of Siberian Sturgeon Acipenser Baerii Fingerlings in the Republic of Korea: A Case Report","authors":"Sang Wha Kim,&nbsp;Se Jin Han,&nbsp;Sib Sankar Giri,&nbsp;Sang Guen Kim,&nbsp;Jun Kwon,&nbsp;Sung Bin Lee,&nbsp;Se Chang Park","doi":"10.1002/aah.10167","DOIUrl":"10.1002/aah.10167","url":null,"abstract":"<p>With the growing demand for caviar products, sturgeon (family Acipenseridae) have become some of the most popular species in the aquaculture industry. Since sturgeon need more than 10 years to become sexually mature, protection against fatal diseases becomes particularly important in the industry. In March 2018, approximately 10% of Siberian Sturgeon <i>Acipenser baerii</i> fingerlings in a sturgeon hatchery in Jeolla Province, Republic of Korea, exhibited anorexia, abdominal distension, buoyancy loss, and abnormal behavior and eventually showed a 90% fatality rate. Twenty moribund fish were necropsied, and a distended stomach filled with gas was found in every case. A single colony dominated the intestinal lumen smear and was identified as <i>Candida manassasensis</i> by polymerase chain reaction targeting 18S ribosomal RNA. The same microorganism was also detected in the sturgeons' feed. Antifungal resistance was examined using the VITEK 2 system, and the isolate was susceptible to voriconazole, caspofungin, micafungin, and flucytosine. The environmental stress factor for this case was speculated as decreased water temperature. Since similar cases have been observed for many years, further research to optimize precise treatment and prevention methods is required.</p>","PeriodicalId":15235,"journal":{"name":"Journal of aquatic animal health","volume":"34 4","pages":"167-173"},"PeriodicalIF":1.2,"publicationDate":"2022-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10836984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular isolation and expression analysis of hemocyanin isoform 2 of Macrobrachium rosenbergii","authors":"Chutima Srisuk,&nbsp;Chanitcha Choolert,&nbsp;William G. Bendena,&nbsp;Siwaporn Longyant,&nbsp;Paisarn Sithigorngul,&nbsp;Parin Chaivisuthangkura","doi":"10.1002/aah.10173","DOIUrl":"10.1002/aah.10173","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":15235,"journal":{"name":"Journal of aquatic animal health","volume":"34 4","pages":"208-220"},"PeriodicalIF":1.2,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10853414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Isolation and Characterization of Aeromonas jandaei from Nile Tilapia in Lake Volta, Ghana, and Its Response to Antibiotics and Herbal Extracts","authors":"E. D. Abarike,&nbsp;R. A. Atuna,&nbsp;S. Agyekum,&nbsp;D. N. Akongyuure,&nbsp;E. H. Alhassan","doi":"10.1002/aah.10165","DOIUrl":"10.1002/aah.10165","url":null,"abstract":"<p>Production of Nile Tilapia <i>Oreochromis niloticus</i> contributes to economic growth in many countries. However, there has been a decline in its production over the years due to the influx of bacterial infections, with <i>Aeromonas jandaei</i> as an emerging threat. In this study, we identified and characterized <i>A. jandaei</i> from cage-cultured Nile Tilapia in Akosombo Stratum II of Lake Volta in Ghana and evaluated its response to commonly used antibiotics using the disc diffusion and agar well diffusion methods for herbal extracts at various concentrations (10, 30, 50, 70, and 100 mg/mL). The herbs considered included guava <i>Psidium guajava</i> leaf, bitter leaf <i>Vernonia amygdalina</i>, neem <i>Azadirachta indica</i> leaf, and their cocktail (GBNL in the ratio of 1:1:1). The bacterium was isolated from swab samples from the head kidneys of 27 moribund Nile Tilapia collected from nine fish farms. Samples were screened for <i>A. jandaei</i> by culturing and identification using morphological and molecular techniques. The bacterium isolate from fish in the study, identified as <i>A. jandaei</i> GH-AS II, had 92–93% identity to <i>A. jandaei</i> reference strains. Infection of healthy Nile Tilapia (<i>n</i> = 210) with the bacterium isolate showed that 1.0 × 10⁵ CFU/mL was the lethal dose causing 50% mortality. Antibiotic susceptibility testing showed that <i>A. jandaei</i> GH-AS II was resistant to tetracycline and ampicillin. Herbal extracts at the various concentrations inhibited the growth of the bacterium isolate, with a significant increment in the zones of inhibition with increasing concentrations of leaf extracts. However, GBNL showed prominence compared to the other extracts only at 100 mg/mL. Management of <i>A. jandaei</i> GH-AS II by using herbal extracts at Nile Tilapia farms in Lake Volta may be recommended since the use of antibiotics, such as tetracycline and ampicillin, may not yield the needed result.</p>","PeriodicalId":15235,"journal":{"name":"Journal of aquatic animal health","volume":"34 3","pages":"140-148"},"PeriodicalIF":1.2,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10415855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}