A5030075556- Aquaculture Nutrition and Growth
- Reproductive biology and impacts on aquatic species
- Marine Bivalve and Aquaculture Studies
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Fish Ecology and Management Studies
- Marine and fisheries research
- Coral and Marine Ecosystems Studies
- Antioxidant Activity and Oxidative Stress
- Algal biology and biofuel production
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Aquaculture disease management and microbiota
- Physiological and biochemical adaptations
- Aquatic life and conservation
- Vibrio bacteria research studies
- Proteins in Food Systems
- Effects of Environmental Stressors on Livestock
- Sperm and Testicular Function
- Microencapsulation and Drying Processes
- Rock Mechanics and Modeling
- Marine and Coastal Ecosystems
- Cultural Differences and Values
- Pelvic and Acetabular Injuries
- Social and Intergroup Psychology
- Echinoderm biology and ecology
Nha Trang University
2012-2024
University of Massachusetts Amherst
2019-2022
University of Economics Ho Chi Minh City
2014
Acute hepatopancreatic necrosis disease (AHPND) of shrimp is caused by Vibrio parahaemolyticus isolates (VPAHPND isolates) that harbor a pVA plasmid encoding toxins PirA Vp and PirB These are released from VPAHPND colonize the stomach produce pathognomonic AHPND lesions (massive sloughing tubule epithelial cells). PCR results indicated V. isolate XN87 lacked pirAVp but carried pirBVp Unexpectedly, Western blot analysis proteins culture broth revealed absence both toxins, lack was further...
This study investigated the possibility of using a phase separation, mixing, and enzymatic gelation approach to construct seafood analogs from plant protein-polysaccharide mixtures with properties mimicking real seafood. Heat-denatured pea protein (10%,
Organizational identification (OID) can be developed out of social exchange practices within an organizational setting. Drawing on theory, we propose that the effect perceived support (POS) OID is stronger for employees with ideology. We further argue employee investment in organization may also create a process positively influences OID. expect moderates not only POS OID, but enhancing ideology Specifically, has positive when high and low. When high, weaker regardless employees' These...
Shallow, tropical marine ecosystems provide essential ecosystem goods and services, but it is unknown how these will respond to the increased exposure temperature extremes that are likely become more common as climate change progresses. To address this issue, we tracked fitness productivity of a key zooplankton species, copepod Pseudodiaptomus annandalei, acclimated at two temperatures (30 34 °C) over three generations. 30 °C mean in shallow water coastal regions Southeast Asia, while...
Predictive and reliable parameters of reproductive status are integral aspects sustainable fisheries aquaculture management. These also important for an accurate evaluation the effects different treatments on sexual maturation in fish farming. In present study, we have characterized seasonal reproduction profile described changes sex steroids relation to gonadal development female male Waigieu seaperch (Psammoperca waigiensis). The experimental period covered a full calendar year...
The importance of microalgal lipids for the survival and growth shrimp postlarvae has been recognized in a range studies. Microalgae with fast rates high levels polyunsaturated fatty acids (PUFA) are considered vital to maximise production minimise cost larviculture. lipid content acid composition microalgae used varies substantially between algal classes species being Vietnam. This study aims characterise (FA) profiles evaluate most promising under conditions that suitable aquaculture....
The seasonal changes in hepatosomatic index (HSI), gonadosomatic (GSI) and plasma estradiol-17β (E2) level female rabbit fish (Siganus guttatus) were investigated. relationship between E2 levels with these indices ovarian growth was also evaluated. Each month, at least 10 broodfish sacrificed to collect liver, ovary blood for HSI, GSI E2, respectively. HSI calculated as percentage (%) of relative weight gonad liver total body weight, Plasma measured using enzyme-linked immunosorbent assay...
Abstract Thyroxin ( T 4 ) is proven to have various functions in fish reproduction. In this study, we investigated oocyte maturation and spawning performance the rabbit fish, Siganus guttatus , orally exposed different doses of (0.05, 0.25, 0.5 mg/kg fish) during vitellogenesis. No statistically significant differences reproductive characteristics were observed among treatments. However, group that was dose spawned after receiving a hormone injection. The findings suggest feeding...
Abstract The objectives of this study were to evaluate the effects varying dilutions, pH , temperature, osmolality, and cations on sperm motility parameters in waigieu seaperch, Psammoperca waigiensis . maximum velocity average path ( VAP ), percentage motile cells MOT duration DSM ) observed when semen was diluted artificial seawater ASW at a ratio 1:100 (144.9 ± 0.6 µm/sec, 95.6 0.4%, 230.3 2.3 sec, respectively), 30 C (142.0 93.6 238.3 0.9 8 (144.8 93.3 234.0 1.5 respectively). Maximum...
This study aimed at evaluating the effect of natural astaxanthin extracted from shrimp shells on growth and skin pigmentation Orange clownfish, Amphiprion percula. Astaxanthin diets (with serial concentrations 0–150 mg kg−1 feed) supplemented to clownfish were set up improve their performance. Our data revealed that feed did significantly affect pigmentation. After 8 weeks 75–150 μg g−1 concentration diet, high redness (a*) value was measured 14.40–14.95 (Minolta, CR400), while control group...
In this study we investigated embryonic and larval development of rabbit fish (Siganus guttatus) in captivity. Embryonic lasted 18-19 hours at 28-30oC, pH: 7.6-8.0, salinity: 30-32‰. Average total length larvae day 1 after hatching (DAH) was 1.58 mm, average yolk sac 0.35 mm containing one ellipsoid (0.92±0.146 0.54±0.107 width) dorsal lateral views. At 2 increased to 2.16 pigmented eyes, mouth, caudal-fin rays developed. Day 3 2.25 the completely absorbed. Our findings provide fundamental...
Abstract Milt quality of Waigieu seaperch was sampled at the beginning, middle, and end spawning season to assess if sampling has an effect on milt parameters. The volume total sperm production were higher middle while concentration in significantly beginning season. Sperm morphology major parameters seminal plasma (pH, protein, Mg 2+ , or Ca concentrations) did not differ throughout concentrations Na + osmolality increased percentage motile cells during duration motility (swimming duration)...
Sea cucumber Holothuria nobilis is an economically important species for livelihoods in many countries. However, increase demand this has led to the depletion of wild stocks. The introduction aquaculture necessary reduce fishing pressure. This study was taken establish breeding and larval rearing techniques development H. aquaculture. broodstock collected from were induced spawn by using thermal stimulation combination algal methods. larvae obtained spawning reared different diets (mixed...