Article
Fisheries
Min-Soo Joo, Kwang-Min Choi, Gyoungsik Kang, Won-Sik Woo, Kyung-Ho Kim, Min -Young Sohn, Ha-Jeong Son, Hyun-Ja Han, Hye-Sung Choi, Do-Hyung Kim, Chan-Il Park
Summary: IL-1 beta and IL-8 play important roles in the defense against RSIV infection in red sea bream, and their expressions are regulated by the site and severity of infection.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Hayato Nyunoya, Tatsuki Noda, You Kawamoto, Yasuhiro Hayashi, Yohei Ishibashi, Makoto Ito, Nozomu Okino
Summary: The study revealed that cell lines from red sea bream and Japanese flounder lack the ability to synthesize EPA or DHA on their own, possibly due to a lack of specific desaturase activity. Furthermore, a sensitive and reproducible non-radioactive method for evaluating LC-PUFA synthesis in fish cells using stable isotopes and liquid chromatography-mass spectrometry was provided.
MARINE BIOTECHNOLOGY
(2021)
Article
Fisheries
Amal Biswas, Fumiaki Takakuwa, Shinichi Yamada, Asuka Furukawa, Masaru Shiratori, Tomohiko Koshiishi, Hiroyuki Tomokane, Hideki Tanaka
Summary: The study found that approximately 190 g of fishmeal protein per kg can be replaced by bacterial protein meal in the diet of juvenile red sea bream without compromising growth performance or feed efficiency.
AQUACULTURE NUTRITION
(2021)
Article
Agriculture, Dairy & Animal Science
Agung Irawan, Anuraga Jayanegara, Vincent Niderkorn
Summary: Including plants rich in secondary metabolites in grass ensiling has various benefits for ruminants, such as improving productivity, promoting health, and reducing environmental pollution. This meta-analysis examines the inclusion levels of red clover silage (RCS) and sainfoin silage (SS) in the diets of dairy cows and small ruminants. The results show that RCS inclusion had a quadratic effect on neutral detergent fibre digestibility and linearly increased nitrogen intake in dairy cows. The combination of RCS + SS resulted in higher concentrations of conjugated linolenic acid (CLA) and alpha-linolenic acid (ALA) in cow milk and average daily gain (ADG) in small ruminants compared to other diets.
JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION
(2023)
Article
Agriculture, Dairy & Animal Science
Kyung-Ho Kim, Kwang-Min Choi, Min-Soo Joo, Gyoungsik Kang, Won-Sik Woo, Min-Young Sohn, Ha-Jeong Son, Mun-Gyeong Kwon, Jae-Ok Kim, Do-Hyung Kim, Chan-Il Park
Summary: Red sea bream iridoviral disease (RSIVD) causes significant economic losses in the aquaculture industry. This study evaluated the dynamics of RSIV in rock bream under different water temperatures and RSIV inoculation concentrations. High viral copy numbers were observed during the period of fish mortality after RSIV infection at all concentrations in the tanks with high water temperatures. The study also found that the number of viral copies shed into the rearing seawater varied depending on the RSIV infection level in rock bream. These findings highlight the potential of non-invasive virus detection approaches and the quantitative analysis of seawater viruses in understanding and controlling fish diseases.
Article
Fisheries
R. Magalhaes, N. Martins, F. Fontinha, S. Moutinho, R. E. Olsen, H. Peres, A. Oliva-Teles
Summary: The study found limited interactions between arachidonic acid (ARA) or docosahexaenoic acid (DHA) and dietary digestible carbohydrates, while the starch content in the diet had a certain impact on the growth performance and feed utilization of gilthead sea bream.
Article
Environmental Sciences
Peng Tan, Pian Zhang, Lei Zhang, Wenliang Zhu, Ligai Wang, Ruiyi Chen, Qihui Zhu, Dongdong Xu
Summary: This study investigates the effects of dietary soybean lecithin (SL) inclusion on the growth performance, liver metabolism, resistance to hypoxia stress, and potential molecular mechanisms in rock bream larvae. The results show that dietary SL inclusion promotes growth performance, survival rate, stress resistance, and improves intestinal structure. Additionally, a high SL inclusion diet increases the activity of lipolysis-related enzymes in liver tissue but decreases the activity of amino acid catabolism-related enzymes.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Xinshu Li, Xin Sun, Lin Gao, Juntian Xu, Guang Gao
Summary: The study revealed the interactive effects of periodical dehydration and salinity on biomass yield and biochemical composition in Pyropia yezoensis. Salinity of 25 psu was optimal, with dehydration altering the optimal conditions for cultivation.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Microbiology
Yasuhiko Kawato, Tohru Mekata, Mari Inada, Takafumi Ito
Summary: Red sea bream iridoviral disease (RSIVD) causes significant economic damage in mariculture in Asian countries. The study monitored the dynamics of RSIV in a fish farm over 3 years and found that outbreaks in juveniles originated from asymptomatically virus-infected broodstocks, highlighting the potential of using eDNA monitoring as a tool for controlling fish diseases in aquaculture.
MICROBIOLOGY SPECTRUM
(2021)
Article
Fisheries
Chalermkwan Eurlaphan, Reiko Nozaki, Motohiko Sano, Keiichiro Koiwai, Ikuo Hirono, Hidehiro Kondo
Summary: This study investigated the kinetics of red sea bream iridovirus and host gene expression during infection in rock bream (Oplegnathus fasciatus). The results showed that viral gene transcripts were detected at 3 and 5 days post-injection, and certain host genes were differentially expressed during the infection process. The downregulation of certain inflammation-related genes may contribute to the increased susceptibility of this fish to the virus.
JOURNAL OF FISH DISEASES
(2023)
Article
Biochemistry & Molecular Biology
Kyung-Ho Kim, Gyoungsik Kang, Won-Sik Woo, Min-Young Sohn, Ha-Jeong Son, Chan-Il Park
Summary: Red sea bream iridovirus (RSIV) is a significant aquatic virus causing high mortality in marine fish. A viability qPCR assay based on PMAxx was developed, which effectively differentiated between infectious and inactive viruses and detected infectious RSIV more efficiently than conventional methods. This method can prevent overestimation of red sea bream iridoviral disease caused by RSIV.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Agriculture, Dairy & Animal Science
Amal Biswas, Yuta Takahashi, Kota Isaka, Fumiaki Takakuwa, Hideki Tanaka, Kenji Takii
Summary: A series of studies found that fish residue meal (FRM) can be used as a complete replacement for fish meal (FM) in the diet of red sea bream without compromising growth performance and health status. This research has important implications for achieving sustainability in the aquaculture industry.
Article
Fisheries
Amal Biswas, Yuta Takahashi, Hideo Araki, Tetsuo Sakata, Toshihiro Nakamori, Kenji Takii
Summary: The study showed that reducing TI activity in SPC from soymilk to <= 21 TIU/mg sample (<= 9.66 TIU/mg diet) allowed replacement of 80% of FM protein without affecting growth performance and health status. Additionally, a significant decrease in phosphorus discharge suggests ecological benefits through improving diet utility by lowering TI activity in SPCs from soymilk.
Article
Environmental Sciences
Shaoyi Xu, Wenbo Chai, Rui Xiao, Barth F. Smets, Alejandro Palomo, Huijie Lu
Summary: This study identified Candidatus Nitrospira nitrosa-like comammox bacteria as the predominant ammonia oxidizers in a lab-scale BNR system, with the potential to use acetate and propionate, stimulate ammonia oxidation rate, and interact metabolically with heterotrophs. Comammox bacteria have shown to provide vitamins/cofactors to heterotrophs and receive amino acids in return, contributing to their survival in the system and outcompeting ammonia oxidizing bacteria. Systems with comammox bacteria as the major nitrifiers have great potential for superior performance with low aeration cost and N2O emission at full-scale plants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Fisheries
Min -Soo Joo, Kwang-Min Choi, Gyoungsik Kang, Won-Sik Woo, Kyung-Ho Kim, Min -Young Sohn, Ha-Jeong Son, Jeong-Ho Lee, Chan-Il Park
Summary: In this study, PmIRF3 and PmIRF7 were identified in red sea bream and were found to have antiviral activity against red sea bream iridovirus (RSIV) by inducing type I interferon (IFN).
AQUACULTURE REPORTS
(2022)