Journal of Applied Veterinary Sciences最新文献

{"title":"Major Bacterial Challenges Facing Nile Tilapia (Oreochromis niloticus) in Egyptian Fish Hatcheries","authors":"Nourhan Elsayed, Khaled Fahmy, Mahmoud Abou-Okada, Awad Abdelbaky, Ahmed Eltahan, A. E. Eissa","doi":"10.21608/javs.2024.259686.1304","DOIUrl":"https://doi.org/10.21608/javs.2024.259686.1304","url":null,"abstract":"Nile tilapia is the most farmed freshwater fish species across vast areas of the African continent. Although Egypt is considered the largest African producer of Nile tilapia, this fish has been faced with frequent episodes of mortality at both hatchery and farm levels. In the present study, we conducted field screenings to identify the major bacterial pathogens responsible for these mass kills among broodstocks and seeds in Egyptian hatcheries. Aeromonas hydrophila and Streptococcus agalactiae were determined to be the major bacterial threats to hatchery-reared Nile tilapia. The bacterial isolates were presumptively identified using conventional biochemical tests and the API 20 NE miniaturized test. The final identities of the retrieved bacterial isolates were molecularly confirmed using PCR and sequencing of 16S rRNA genes. A. hydrophila and S. agalactiae isolates were found to be sensitive to florfenicol, while the two isolates exhibited resistance to novobiocin and ampicillin. The A. hydrophila isolates were confirmed to be sensitive to oxytetracycline, whereas the S. agalactiae isolates were sensitive to erythromycin. Histopathological examination of the livers of infected fish revealed vacuolar degeneration and necrosis of hepatocytes. Remarkably, infiltrations of Gram-positive cocci were documented within hepatic parenchyma and brain tissues. Further, the infected fish exhibited edematous brains with inflammatory cell infiltration through the meninges. Severe retinal pathology, including collagen fibre disorganization, oedema, and inflammatory cell infiltration was also detected. The current study emphasizes the deleterious impacts of some ubiquitous bacterial pathogens on the health status of Nile tilapia broodstocks and their seeds. Ultimately, we affirm that regular monitoring of water quality, feed quality, proper handling of broodstocks, and accurate diagnosis is a crucial asset in preventing disease spread and mass fish kills in Egyptian hatcheries.","PeriodicalId":15040,"journal":{"name":"Journal of Applied Veterinary Sciences","volume":"26 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140457315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High Environmental Temperature Induces Oxidative Stress, Reduced Sow Productivity and Increased Piglet Mortality","authors":"Oladipo Omotosho Omotosho, Olusola Fowowe, John Abiola, A. Oyagbemi, T. Omobowale","doi":"10.21608/javs.2024.255494.1300","DOIUrl":"https://doi.org/10.21608/javs.2024.255494.1300","url":null,"abstract":"","PeriodicalId":15040,"journal":{"name":"Journal of Applied Veterinary Sciences","volume":" 21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139792767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High Environmental Temperature Induces Oxidative Stress, Reduced Sow Productivity and Increased Piglet Mortality","authors":"Oladipo Omotosho Omotosho, Olusola Fowowe, John Abiola, A. Oyagbemi, T. Omobowale","doi":"10.21608/javs.2024.255494.1300","DOIUrl":"https://doi.org/10.21608/javs.2024.255494.1300","url":null,"abstract":"","PeriodicalId":15040,"journal":{"name":"Journal of Applied Veterinary Sciences","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139852621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Screening the Toxic effect of Polyethylene Terephthalate Nanoplastics on Kidney of Adult Male Swiss Albino Mice with Promising Betaine Alleviation","authors":"Nehal Kamel, Dina Bashir, Ebtihal El-Leithy, Adel Tohamy, Maha Rashad, Ghada Ali, El -Saba A.A.","doi":"10.21608/javs.2024.255947.1301","DOIUrl":"https://doi.org/10.21608/javs.2024.255947.1301","url":null,"abstract":"","PeriodicalId":15040,"journal":{"name":"Journal of Applied Veterinary Sciences","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139865256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Screening the Toxic effect of Polyethylene Terephthalate Nanoplastics on Kidney of Adult Male Swiss Albino Mice with Promising Betaine Alleviation","authors":"Nehal Kamel, Dina Bashir, Ebtihal El-Leithy, Adel Tohamy, Maha Rashad, Ghada Ali, El -Saba A.A.","doi":"10.21608/javs.2024.255947.1301","DOIUrl":"https://doi.org/10.21608/javs.2024.255947.1301","url":null,"abstract":"","PeriodicalId":15040,"journal":{"name":"Journal of Applied Veterinary Sciences","volume":"12 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139805412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biochemical and Molecular Identification of the Most Common Streptococci Affecting Common pandora (Pagellus erythrinus Linnaeus, 1758) From the Mediterranean Coast of Tripoli","authors":"Alaa Eldin Eissa, Abdulatif Asheg, Abdulsalam Abu Mhara, Mahmoud Sharaf, Awad Abdelbaky, Amira Attia, Tarek Dakhil, A. Gaafar, Eman Ismail, Rasmia Abu Leila, Heba Abdel Hady, Emad Afify, Abdelbary Prince, Reham Ragab, Khalid Shahin","doi":"10.21608/javs.2024.253995.1299","DOIUrl":"https://doi.org/10.21608/javs.2024.253995.1299","url":null,"abstract":"","PeriodicalId":15040,"journal":{"name":"Journal of Applied Veterinary Sciences","volume":"15 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139874932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biochemical and Molecular Identification of the Most Common Streptococci Affecting Common pandora (Pagellus erythrinus Linnaeus, 1758) From the Mediterranean Coast of Tripoli","authors":"Alaa Eldin Eissa, Abdulatif Asheg, Abdulsalam Abu Mhara, Mahmoud Sharaf, Awad Abdelbaky, Amira Attia, Tarek Dakhil, A. Gaafar, Eman Ismail, Rasmia Abu Leila, Heba Abdel Hady, Emad Afify, Abdelbary Prince, Reham Ragab, Khalid Shahin","doi":"10.21608/javs.2024.253995.1299","DOIUrl":"https://doi.org/10.21608/javs.2024.253995.1299","url":null,"abstract":"","PeriodicalId":15040,"journal":{"name":"Journal of Applied Veterinary Sciences","volume":"99 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139814930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Climate Change on Some Seasonal Bacterial Eruptions among Cultured Marine Fishes from Egyptian Coastal Provinces","authors":"Mohamed Hussein, A. E. Eissa, R. El-Tarabili, Amira Attia, Manal Zaki, Taghreed Ibrahim, Heba Abdel Hady, Abdulsalam Abu Mhara, Reham Ragab, Amina Dessouki","doi":"10.21608/javs.2024.253653.1298","DOIUrl":"https://doi.org/10.21608/javs.2024.253653.1298","url":null,"abstract":"Climate change is now considered one of the greatest challenges and is expected to have a drastic impact on mariculture. The present study aimed to evaluate the impact of climatic changes on the emergence of bacterial pathogens among cultured marine fish in northern Egyptian provinces. 135 samples of three marine fish species, represented as 45 of Dicentrarchus labrax (700 ±25 g), 45 of Sparus aurata (350 ±25 g)","PeriodicalId":15040,"journal":{"name":"Journal of Applied Veterinary Sciences","volume":"41 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140487716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ginseng Extract can alleviate The Induced-renal Toxicity of Titanium Dioxide Nanoparticles in a Rat Model","authors":"Heba Abuzaied, Dina Bashir, Eman Rashad, Maha Rashad, Hany El-Habback","doi":"10.21608/javs.2024.253254.1296","DOIUrl":"https://doi.org/10.21608/javs.2024.253254.1296","url":null,"abstract":"Titanium dioxide nanoparticles (TiO 2 -NPs) are widely utilized in cosmetics, food, and paintings. Although TiO 2 -NPs may cause toxicity through a variety of routes, oxidative stress is by far the most common. Ginseng is employed in a variety of medical applications because of its potency as an antioxidant. Thus, the purpose of this study is to assess the protective and therapeutic benefits of Panax ginseng against TiO 2 -NPs administration in the kidneys of male rats. Thirty-five mature male albino rats were divided into five groups of seven rats each at random. The experimental groups were as follows: Group I served as the control group; Group II received 200 mg/kg of ginseng orally; Group III received 200 mg/kg of TiO 2 - NPs orally; Group IV served as the protective group; rats were pretreated with ginseng 1 hour before TiO 2 -NPs at a dose similar to GII and GIII, respectively; and Group V served as the treatment group; rats received TiO 2 -NPs for 14 days, then ginseng for another 14 days at a dose identical to GIII and GII, respectively . After 4 weeks, serum samples were collected, and kidney tissues were dissected for biochemical and histopathological examinations. Treatment with TiO 2 -NPs elevated malonaldehyde (MDA), kidney biomarkers, and reduced glutathione (GSH) and glutathione peroxidase (GPx) levels. Furthermore, TiO 2 -NPs induce upregulation of cysteine-aspartic acid protease (caspase3) and cyclooxygenase (COX-2). Histopathologically, TiO 2 -NPs caused degenerative changes in renal tissue, including renal corpuscles, and showed hypertrophy with capillary congestion. Most renal tubules showed marked luminal dilation with epithelial cell flattening. Additionally, there was reduced immunoreactivity of Ki-67 in the kidney sections. Ginseng, on the other hand, substantially mitigated the detrimental impacts that TiO 2 -NPs had on the rat renal tissues by down-regulating the genes for COX-2 and caspase3, restoring these biochemical and molecular parameters, and ameliorating the histological changes. In conclusion, ginseng could potentially be used to alleviate the renal toxicity brought on by TiO 2 -NPs.","PeriodicalId":15040,"journal":{"name":"Journal of Applied Veterinary Sciences","volume":"409 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140490446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of Azolla pinnata in hepatic protection and immunity stimulation in broiler chickens","authors":"Mohamed Hamouda, Huda Mahrous, Hanafy Hamza, Gihan El moghazy, Mohamed Abdel Aal","doi":"10.21608/javs.2023.249784.1293","DOIUrl":"https://doi.org/10.21608/javs.2023.249784.1293","url":null,"abstract":"","PeriodicalId":15040,"journal":{"name":"Journal of Applied Veterinary Sciences","volume":"58 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139165413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}