Article
Fisheries
Mai Dang, Tran Duc Dien, Ut Phan Van, Vo Thi Ha, Vu Viet Dung, Nguyen Trinh Duc Hieu, Viet Cuong Hua, Nguyen Thi Kim Hue, Nguyen Thi Thu Giang, Vu Huu Truong, Ha Thanh Dong
Summary: Barramundi, an economically important species in the Asia-Pacific region, has been threatened by various infectious diseases including the newly emerging Lates calcarifer herpes virus (LCHV). This study investigated the histology of LCHV outbreaks and identified a pathognomonic feature, the presence of intra-nuclear inclusion bodies (IIBs), in infected fish. Experimental infection confirmed the presence of IIBs in multiple organs, providing a valuable tool for the histological diagnosis and surveillance of this viral disease in barramundi farming countries.
Article
Genetics & Heredity
Jose A. Domingos, Xueyan Shen, Celestine Terence, Saengchan Senapin, Ha Thanh Dong, Marie R. Tan, Susan Gibson-Kueh, Dean R. Jerry
Summary: Marine farming of barramundi in Southeast Asia is currently affected by viral diseases, with scale drop disease virus and L. calcarifer herpes virus being detected in all sampled fish. Histopathology showed abnormal fat accumulation in the livers of sick fish, inflammation and necrosis in the kidneys, and severe necrosis in the spleen. RNA degradation in the kidney and spleen of sick fish indicated organ failure in advanced stages of scale drop disease.
FRONTIERS IN GENETICS
(2021)
Article
Fisheries
Thanwarat Sukonta, Saengchan Senapin, Watcharachai Meemetta, Thawatchai Chaijarasphong
Summary: A novel detection platform for SDDV based on CRISPR-Cas12a and recombinase polymerase amplification technology has been developed, showing high sensitivity and specificity for rapid and accurate diagnosis of SDDV. This user-friendly method can be completed within an hour at room temperature, potentially serving as a valuable tool for combating large-scale epidemics in fish farming communities.
JOURNAL OF FISH DISEASES
(2022)
Article
Fisheries
Onanong Charoenwai, Saengchan Senapin, Ha Thanh Dong, Molruedee Sonthi
Summary: Non-destructive sampling methods are beneficial for detecting and monitoring viral pathogens in economically important farmed fish. Blood was found to be the best non-destructive sample source for detecting scale drop disease virus in farmed Asian sea bass.
JOURNAL OF FISH DISEASES
(2021)
Article
Fisheries
Yuting Fu, Yong Li, Wenfeng Zhang, Weixuan Fu, Wangdong Li, Zhiming Zhu, Shaoping Weng, Jianguo He, Chuanfu Dong
Summary: A bivalent inactivated vaccine against ISKNV/RSIV and SDDV was developed and evaluated in Asian seabass. The survival rates of immunized fish were between 86.67% and 96.7%. The study also provided important information on the clinical symptoms and pathological changes caused by the viruses, contributing to the prevention and control of megalocytiviruses in Asian seabass.
Article
Fisheries
Celestine Terence, Jose A. Domingos, Joseph Angelo Uichanco, Yann Monteil, Loic Monteil, Emmanuel De Braux, Quyen Q. T. Banh, Susan Gibson-Kueh, Dean R. Jerry
Summary: The study in Singapore found that barramundi farmed in sea cages are undergoing precocious sex change, with a decrease in male individuals and an increase in females as early as 2-3 years old. This phenomenon challenges hatcheries in selecting and maintaining male fish for breeding purposes, and further investigation is needed to understand the causes of this early sex change.
AQUACULTURE REPORTS
(2021)
Article
Fisheries
Kensuke Ichida, Reoto Tani, Somkiat Sreebun, Araya Jangprai, Pailin Pasomboon, Ryosuke Yazawa, Goro Yoshizaki, Surintorn Boonanuntanasarn
Summary: Selective breeding is crucial for sustainable aquaculture, and barramundi is no exception. Developing a germ cell transplantation method is essential for preserving diverse genetic characteristics. Transplanting frozen germ cells into recipients is a powerful tool for obtaining the next generation.
Article
Fisheries
Adrien F. Marc, Jarrod L. Guppy, Paige Bauer, Peter Mulvey, Dean R. Jerry, Damien B. B. P. Paris
Summary: This study optimized advanced tools to evaluate the sperm function of barramundi, a tropical finfish species popular in aquaculture. The findings provide insights for future research on male fertility and reproductive constraints in captive-bred broodstock, highlighting the importance of assessing sperm quality for commercial spawns.
Article
Chemistry, Multidisciplinary
Somwang Lekjing, Karthikeyan Venkatachalam, Chutima Wangbenmad
Summary: The study aimed to develop a novel fish essence soup by prolonged boiling and studying various biochemical qualities. It was found that the duration of boiling significantly influenced the color, density, viscosity, and various biochemical components of the fish soup samples, with the best antioxidant potential observed in soup stewed for 9 hours.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Fisheries
Richard Le Boucher, Weiqiang Chung, Jessalin Ng Kai Lin, Lydia Shun En Tan, Zhi Weng Josiah Poon, Co Sin Lee
Summary: Efficient aquaculture management requires optimizing feed intake to balance fish productivity and environmental waste. Automated feeders with daily feed intake (DFI) prediction capabilities are popular for achieving this balance. This study optimized DFI prediction using various learning algorithms and nonlinear functional forms, showing that feed selection, fish characteristics, and environmental factors significantly impact DFI. Nonlinear models demonstrated higher accuracy, and the use of adaptive algorithms facilitated the development of effective DFI prediction models.
Article
Multidisciplinary Sciences
Brien H. Roberts, John R. Morrongiello, David L. Morgan, Alison J. King, Thor M. Saunders, David A. Crook
Summary: The relationship between individual growth rate and the timing of sex change plays a significant role in reproductive output and population productivity. Fast growth is associated with a younger age at sex change, but not necessarily a smaller size at sex change. Individuals that grow faster, particularly as large females, contribute more to population fecundity and ultimately obtain higher fitness.
SCIENTIFIC REPORTS
(2021)
Article
Fisheries
Keng Chin Lim, Fatimah Md. Yusoff, Mohamed Shariff, Mohd Salleh Kamarudin
Summary: Supplementation with astaxanthin significantly improves hematological parameters, serum biochemical profile, and immunological defense mechanisms of the Asian seabass against Vibrio alginolyticus infection, leading to enhanced survival rate.
FISH & SHELLFISH IMMUNOLOGY
(2021)
Article
Engineering, Marine
Alexander Kasumyan, Olga Isaeva, Le T. K. Oanh
Summary: This study examined the taste attractiveness of 21 amino acids and 4 taste substances for barramundi, and investigated their feeding behavior. The results showed that citric acid, cysteine, and alanine were palatable, while sucrose and 7 amino acids had an aversive taste. Barramundi often made repeated grasps and rejections of pellets, leading to the destruction of the pellets.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Fisheries
S. Gibson-Kueh, S. Awate, M. Schrittwieser
Summary: Lates calcarifer herpesvirus (LCHV) is an emerging serious disease causing significant pathology and mortality in aquaculture. Infected juvenile L. calcarifer often experience sudden drops in feed rates and mortality spikes exceeding 40%-50% after transfer into sea cages. The affected fish show various symptoms such as patchy white skin and fins, corneal opacity, and floating at the water surface.
JOURNAL OF FISH DISEASES
(2023)
Article
Environmental Sciences
Zhengyi Fu, Shengjie Zhou, Gang Yu, Rui Yang, Mingyang Han, Zhenhua Ma
Summary: High lipid diet can enhance hepatic lipid metabolism and growth performance of barramundi, but may lead to increase in useless adipose tissue; High carbohydrate diet may result in hepatic glycogen accumulation, without significant improvement in growth performance or metabolic abnormalities.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Fisheries
B. R. LaFrentz, J. C. Garcia, H. T. Dong, G. C. Waldbieser, C. Rodkhum, F. S. Wong, S. F. Chang
JOURNAL OF FISH DISEASES
(2017)
Article
Microbiology
Benjamin R. LaFrentz, Julio C. Garcia, Geoffrey C. Waldbieser, Jason P. Evenhuis, Thomas P. Loch, Mark R. Liles, Fong S. Wong, Siow F. Chang
FRONTIERS IN MICROBIOLOGY
(2018)
Article
Virology
P. F. Dixon, G. -H. Ngoh, D. M. Stone, S. F. Chang, K. Way, S. L. F. Kueh
ARCHIVES OF VIROLOGY
(2008)
Article
Multidisciplinary Sciences
Junhui Jiang, Masato Miyata, Candy Chan, Si Yan Ngoh, Woei Chang Liew, Jolly M. Saju, Kah Sing Ng, Fong Sian Wong, Yeng Sheng Lee, Siow Foong Chang, Laszlo Orban
Article
Veterinary Sciences
D. X. Khor, C. J. Fernandez, D. M. Chee, X. H. Teo, Z. Y. Han, J. H. Jiang, H. S. Neo, S. F. Chang, H. H. Yap
REVUE SCIENTIFIQUE ET TECHNIQUE-OFFICE INTERNATIONAL DES EPIZOOTIES
(2019)
Article
Infectious Diseases
Kelvin Lim, Alwyn Tan, Kelvin Ho, Wendy Sng, Hwee Ping Lim, Cathy Chan, Xinyu Toh, Jasmine Ong, Siow Foong Chang, Charlene Judith Fernandez
Summary: The outbreak of RHD in Singapore involved both inter- and intra-household transmission as well as transmission from veterinary clinics to households. This incident highlighted the importance of biosecurity measures and timely vaccine dissemination, and showed that even without a wild lagomorph population, Singapore could still face risks of disease transmission.
TRANSBOUNDARY AND EMERGING DISEASES
(2022)
Article
Behavioral Sciences
Paul Z. Chen, Stacy Q. Y. Chong, Qiai Chong, Amy H. J. Chan, Charlene J. Fernandez, Audrey G. Chen, Siow Foong Chang, Him Hoo Yap, Kenneth B. H. Er
Summary: Singapore's trap-neuter-release-management program aims to rehome free-roaming dogs, and the adaptability of dogs to shelter conditions can be evaluated using canine fecal samples. The study found that recently sheltered dogs had higher fecal cortisol metabolite (FCM) levels and the levels continued to rise, indicating a lack of adaptation. The difference in FCM levels between newly sheltered individuals and pet dogs was influenced by sex. Surprisingly, dogs with a good prognosis had higher average FCM levels than those with a poor prognosis, with sex and state of the fecal samples as important covariates.
JOURNAL OF VETERINARY BEHAVIOR-CLINICAL APPLICATIONS AND RESEARCH
(2022)
Article
Immunology
Yifan Wang, Jasmine Ong, Oi Wing Ng, Tapanut Songkasupa, Eileen Y. Koh, Jeslyn P. S. Wong, Kanokwan Puangjinda, Charlene Judith Fernandez, Taoqi Huangfu, Lee Ching Ng, Siow Foong Chang, Him Hoo Yap
Summary: This article describes a real-time reverse transcription PCR-based assay for rapid characterization of the African horse sickness virus strain. The method helps differentiate between vaccinated and non-vaccinated horses and can be used to determine the epidemiology of the virus in future outbreaks.
EMERGING INFECTIOUS DISEASES
(2022)
Review
Medicine, General & Internal
Hon Keong Leong, Cheryl S. Goh, Siang Thai Chew, Chee Wee Lim, Yueh Nuo Lin, Siow Foong Chang, Him Hoo Yap, Sin Bin Chua
ANNALS ACADEMY OF MEDICINE SINGAPORE
(2008)
Article
Pathology
S Gibson-Kueh, P Netto, GH Ngoh-Lim, SF Chang, LL Ho, QW Qin, FHC Chua, ML Ng, HW Ferguson
JOURNAL OF COMPARATIVE PATHOLOGY
(2003)
Article
Fisheries
QW Qin, SF Chang, GH Ngoh-Lim, S Gibson-Kueh, C Shi, TJ Lam
DISEASES OF AQUATIC ORGANISMS
(2003)
Article
Fisheries
EK Seng, Q Fang, SF Chang, GH Ngoh, QW Qin, TJ Lam, YM Sin
Article
Veterinary Sciences
SF Chang, GH Ngoh-Lim, LFS Kueh, QW Qin, EK Seng, YM Sin
Article
Biochemical Research Methods
QW Qin, TJ Lam, YM Sin, H Shen, SF Chang, GH Ngoh, CL Chen
JOURNAL OF VIROLOGICAL METHODS
(2001)