Article
Fisheries
Jian-dong Zhang, Eric Amenyogbe, Er-jun Yang, Zhong-liang Wang, Gang Chen, Jian-sheng Huang
Summary: The study found that cobia larvae and juveniles have good feeding capabilities, starting to feed in the early development stage. Feed intake increases with body mass, and digestion time varies with food types. Feeding patterns show circadian rhythm, and feeding rates decrease as age increases.
Article
Fisheries
T. G. Sumithra, S. Gayathri, S. R. Krupesha Sharma, Sanal Ebeneezar, K. K. Anikuttan, K. A. Sajina, G. Iyyapparaja Narasimapallavan, K. J. Reshma, R. Vishnu, G. Tamilmani, M. Sakthivel, P. Rameshkumar, D. Linga Prabu, P. Vijayagopal, A. Gopalakrishnan
Summary: The present study explores the dysbiotic events in the larval and juvenile-gut microbiome of cobia during live transportation. The results demonstrate significant changes in microbial composition and reduction in cultivable load during early life stages, as well as reduced taxonomic diversity in the juvenile gut post transportation. Findings also reveal an increase in potential fish pathogens and decrease in healthy microbiota following transportation. The study highlights the importance of understanding microbial dynamics for effective management practices in cobia aquaculture.
Article
Microbiology
Samira Reinoso, Maria Soledad Gutierrez, Cristobal Dominguez-Borbor, Wilfrido Arguello-Guevara, Milton Bohorquez-Cruz, Stanislaus Sonnenholzner, Daniela Nova-Baza, Claudia Mardones, Paola Navarrete
Summary: This study evaluated the potential probiotic strains from the intestines of cobia, a tropical fish species. Three yeast strains were selected as potential probiotics based on their protective ability and bioactivity towards cobia larvae.
Article
Ecology
Taciana Kramer Pinto, Rodolfo Leandro Nascimento, Rafael Carnauba Ferreira, Washington Azevedo dos Santos, Santiago Hamilton, Ronaldo O. Cavalli
Summary: The study evaluated the impact of a cobia farm on nematode assemblages and found significant changes during the rearing cycle, including increased abundance, low diversity, and changes in trophic group dominance. The research indicated that fish farming in oligotrophic and dynamic tropical regions can lead to alterations in nematode communities.
REGIONAL STUDIES IN MARINE SCIENCE
(2021)
Article
Fisheries
Maria Raquel M. Coimbra, Emilly Benevides, Renata da Silva Farias, Bruno C. N. R. da Silva, Sara Cloux, Vicente Perez-Munuzuri, Manuel Vera, Rodrigo Torres
Summary: In this study, the genetic diversity and structure of cobia populations in the Southwestern Atlantic were analyzed using mitochondrial DNA sequencing and microsatellite genotyping. The results showed high genetic diversity and structure in the Southwestern Atlantic population, with the Indian Ocean identified as the center of origin for this species' diversification. The study also revealed clear genetic differentiation between the Southwestern Atlantic and Northwestern Atlantic populations. These findings have significant implications for the management and conservation of cobia populations in the Atlantic Ocean.
FISHERIES OCEANOGRAPHY
(2023)
Article
Fisheries
Eric Amenyogbe, Jian-dong Zhang, Jian-sheng Huang, Gang Chen
Summary: This study explored the growth performance and immune indices of cobia juveniles after 70 days of feeding with supplementation of viable isolated microbes. The indigenous isolates Bacillus sp. RCS1 and Bacillus cereus strain RCS3 significantly enhanced growth performance and hematological indices, leading to improved antioxidant enzyme activities and enhanced resistance against Vibrio harveyi infection. The addition of indigenous isolates to the diet had the potential to enhance cobia juveniles' growth and immune response regardless of their dosage.
AQUACULTURE REPORTS
(2022)
Article
Agriculture, Dairy & Animal Science
Hairui Yu, Min Li, Leyong Yu, Xuejun Ma, Shuliang Wang, Ziyi Yuan, Lingyao Li
Summary: This study investigated the effects of poultry by-product meal (PBPM) as a substitute for fish meal (FM) on the growth, muscle composition, and tissue biochemical parameters of coho salmon. The results showed that high levels of PBPM negatively affected the growth performance, feed utilization, muscle composition, and liver antioxidant enzyme activities of coho salmon. Based on the evaluation of the specific growth rate, the optimal substitution level of PBPM was determined to be 16.63-17.50% of FM protein.
Article
Agriculture, Multidisciplinary
Andre B. Souza, Jonas H. S. Motta, Marcelo F. Polese, Henrique D. Lavander, Leonardo S. Gloria, Leonardo S. Silveira, Manuel V. Vidal Junior
Summary: This study aimed to evaluate fasting as a possible feeding strategy for juvenile cobias. The study was conducted in Espirito Santo, Brazil and evaluated the development and wellbeing of the cobias under different feeding protocols. The results showed that continuous fasting had a more severe effect on the cobias compared to intermittent fasting. The study suggests that fasting protocols should not be recommended for juvenile cobias.
SPANISH JOURNAL OF AGRICULTURAL RESEARCH
(2023)
Article
Fisheries
Mir Hamed Sayed Hassani, Akbar Banavreh, Ayoub Yousefi Jourdehi, Mahmoud Mohseni, Maryam Monsef Shokri, Hooshang Yeganeh Rastekenari
Summary: This study investigated the effects of adding poultry by-product to the diet on the growth, metabolic indices, and digestive enzymes of juvenile Huso huso. The results showed that replacing fishmeal with PBM could lead to lower growth rates and affect feed utilization efficiency, but within a certain range of replacement, it maintained digestibility.
AQUACULTURE RESEARCH
(2021)
Article
Immunology
Po-Tsang Lee, Fan-Hua Nan, Po-Yu Chiu, Chung-Chih Tseng, Meng-Chou Lee
Summary: This study examined the effects of Sarcodia suiae water extract (SSWE) on cobia, and found that SSWE treatment can enhance the fish's immune response against pathogens and has the potential to be used as an immunostimulant and vaccine adjuvant for fish.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Fisheries
Jun Wang, Kunpeng Lan, Guangde Wu, Yun Wang, Chuanpeng Zhou, Heizhao Lin, Zhenhua Ma
Summary: In this study, the effects of dietary carbohydrate levels on the growth performance and feed utilization of cobia were investigated. The results showed that increasing dietary carbohydrate levels promoted the growth and feed efficiency of cobia. However, it also led to higher lipid deposition and body indices. Therefore, the inclusion of carbohydrates in the diet of cobia should be carefully evaluated.
AQUACULTURE REPORTS
(2022)
Article
Fisheries
Xuexi Wang, Hongjie Luo, Yunzong Zheng, Dejuan Wang, Yuxin Wang, Weini Zhang, Zhengbang Chen, Xinhua Chen, Jianchun Shao
Summary: An 8-week feeding trial was conducted to evaluate the potential of poultry by-product meal (PBM) replacing fish meal (FM) in the diet of juvenile large yellow croaker. The results showed that when the replacement level of FM exceeded 25%, the weight gain, specific growth rate, and feed efficiency of L. crocea significantly decreased. The feed intake of fish fed PBM was significantly lower, and the muscular thickness in the intestine and villi length were also affected. Therefore, the optimum dietary FM replacement level by PBM was 25% for L. crocea.
AQUACULTURE REPORTS
(2023)
Article
Biochemistry & Molecular Biology
Jian-Dong Zhang, Hong-Juan Li, Eric Amenyogbe, Wei-Zheng Wang, Jian-Sheng Huang, Gang Chen
Summary: This study analyzed the cDNA sequence of the Mn-SOD gene in cobia and found that the expression of Mn-SOD in brain tissue was significantly affected under hypoxia-reoxygenation stress. Additionally, changes in GPx expression/activity in the liver indicated disturbance in antioxidant homeostasis. These results provide valuable information on the role of Mn-SOD regulation in oxidative stress caused by hypoxia.
MOLECULAR BIOLOGY REPORTS
(2021)
Article
Agriculture, Dairy & Animal Science
Zongsheng Qiu, Qiyou Xu, Dazhang Xie, Jiantao Zhao, Fernando Y. Yamamoto, Hong Xu, Jianhua Zhao
Summary: Fish meal is widely used in aquaculture, but its availability is decreasing and prices are rising. This study found that substituting fish meal with poultry by-product meal had no adverse effect on the growth of Chinese soft-shelled turtles and even improved their performance and health. Therefore, poultry by-product meal can be a viable protein source to replace fish meal in turtle feed.
Article
Fisheries
Jian-sheng Huang, Eric Amenyogbe, Gang Chen, Wei-zheng Wang
Summary: Cobia embryos undergo changes in biochemical composition, with impacts on protein, lipid, and carbohydrate contents over development. Digestive enzymes, such as pepsin and trypsin, show significant increases, while antioxidant enzymes like glutathione peroxidase and catalase also experience notable activity increases. This research provides valuable insights for improving yolk utilization and understanding cobia embryo development.
AQUACULTURE RESEARCH
(2021)
Article
Fisheries
Hunter S. Bailey, Ashley N. Fincannon, Lee A. Fuiman
Summary: This study investigated the transfer of fatty acids from broodstock diets to eggs and the time needed for the eggs to equilibrate to the diet in Southern flounder. The findings indicate that different diet treatments significantly affect the fatty acid composition of eggs, and it takes 8-16 weeks for the eggs to adapt to changes in the adult diet. These results are important for improving broodstock diets and feeding protocols in stock-enhancement programs.
Article
Fisheries
Yu Liu, Mingtao Lei, Hector Victor, Yan Wang
Summary: This study confirms the feasibility of replacing raw fish diet with a formulated diet in commercial farming of large yellow croaker, which can increase fish survival and yield, and reduce feed cost and body lipid deposition.
Article
Fisheries
Xiaoyan Zhang, Lize San, Yucong Yang, Yuehong Tao, Jiangong Ren, Yufeng Liu, Zhongwei He, Jiashuo Di, Ziteng Pei, Guixing Wang, Jilun Hou
Summary: Gynogenesis is an effective technique for establishing homogeneous lines and confirming potential chromosomal mechanisms of sex determination in fish. This study successfully induced gynogenetic families in Thamnaconus modestus and established a complete method for gynogenesis induction.
Article
Fisheries
Julieta C. Martinelli, Megan Considine, Helen R. Casendino, Carolyn M. Tarpey, Isadora Jimenez-Hidalgo, Jacqueline L. Padilla-Gamino, Teri L. King, Lorenz Hauser, Steven Rumrill, Chelsea L. Wood
Summary: Shell-boring polychaetes have caused significant damage to mariculture operations worldwide, particularly in the US Pacific region. This study provides a comprehensive dataset on the prevalence, species distribution, and environmental associations of these parasites, highlighting the impact of season, culturing methods, and environmental factors on infestation.
Article
Fisheries
Juan Gao, Xueshan Li, Kangle Lu, Kai Song, Jian Zhang, Ling Wang, Chunxiao Zhang
Summary: This study investigated the effects of dietary protein levels on growth performance, antioxidant capacity, digestive enzyme activity, and metamorphosis rate of bullfrog tadpoles. The optimal dietary protein level for bullfrog tadpoles was estimated to be 42.49%-46.50% of the diet.
Article
Fisheries
Qiang Li, Lijun Duan, Dongsheng Jin, Yuxin Chen, Yirong Lou, Qianjin Zhou, Zhongjie Xu, Fangjie Chen, Hongxian Chen, Guizong Xu, Maocang Yan, Guanjun Yang, Jianfei Lu, Yanjun Zhang, Jiong Chen
Summary: This study developed a centrifugal microfluidic chip with on-chip RPA to detect five pathogenic microorganisms. The chip enabled the parallel analysis of six genetic markers from a single sample and allowed for the highly automated detection of multiple samples. Compared with PCR and DNA sequencing, the on-chip RPA assay showed high sensitivity and specificity for detecting multiple pathogens in shrimp aquaculture.
Article
Fisheries
Xingchen Huo, Pengxu Wang, Fengxia Zhao, Qian Liu, Qingqing Tian, Lingjie Tang, Maolin Lv, Zhaohui Wei, Chunrong Yang, Jianguo Su
Summary: Bacterial diseases in aquaculture ponds have negative effects on sustainable development. The use of composite I20 biotherapy has been shown to effectively treat bacterial diseases in bullfrog ponds, providing a new strategy for controlling bacterial diseases in aquaculture.
Article
Fisheries
Peng Yin, Takaya Saito, Per Gunnar Fjelldal, Bjorn Tharandur Bjornsson, Sofie Charlotte Remo, Sandeep Sharma, Rolf Erik Olsen, Kristin Hamre
Summary: This study aims to investigate the effect of seasonal changes in temperature and photoperiod on the redox metabolism of Atlantic salmon at the molecular level. The research findings suggest that the changing photoperiod and temperature influenced the redox metabolism of Atlantic salmon, highlighting the importance of oxidative status in the ecological implications.
Article
Fisheries
Nicholas Oppong Mensah, Jeffery Kofi Asare, Emmanuel Tetteh-Doku Mensah, Ernest Christlieb Amrago, Frank Osei Tutu, Anthony Donkor
Summary: This study investigates aquaculture farmers' preference for climate-smart aquaculture insurance products, the challenges they face, and their preferred insurance coverage. The results show that farmers prefer Climate-Induced Aquaculture Stock Mortality Insurance and the most significant constraint is the delay in claim settlement.
Article
Fisheries
Qiu-Ping Chai, Pei Wu, Wei-Dan Jiang, Yang Liu, Hong-Mei Ren, Xiao-Wan Jin, Lin Feng, Xiao-Qiu Zhou
Summary: The study found that appropriate levels of potassium diformate (KDF) can enhance the immune defense and mediate the inflammatory process in fish, possibly through the regulation of T cell differentiation via JAK-STAT and NF-kappa B signaling pathways.
Article
Fisheries
Tian Zhu, Haomin Jia, Haopeng Zhang, Yujing Xiao, Cui Han, Jiaxin Yang
Summary: Chicken manure has significant effects on the cultivation of Chlorella and rotifers. The optimal amount of chicken manure extract for continuous cultivation is 10 mLL-1. Chicken manure can promote the growth of Chlorella and improve the fatty acid composition, indirectly enhancing the growth condition and fatty acid content of rotifers.
Article
Fisheries
Zheng Luo, Yang Yu, Zhenning Bao, Fuhua Li
Summary: This study analyzed the heritability and genetic correlation of two growth traits in Pacific white shrimp and evaluated the genomic prediction using different genomic selection models. The results showed that the NeuralNet model had the highest prediction accuracy and better prospects for predicting shrimp growth traits.
Article
Fisheries
Alberto Ruiz, Ignasi Sanahuja, Karl B. Andree, Dolors Furones, Paul G. Holhorea, Josep A. Calduch-Giner, Jose J. Pastor, Marc Vinas, Jaume Perez-Sanchez, Sofia Morais, Enric Gisbert
Summary: Supplementing diets with a combination of spice oleoresins can reduce lipid accumulation and inflammation in farmed fish. The combination of spice oleoresins also has an immunomodulatory effect on the fish's intestinal immune system, potentially offering anti-inflammatory benefits.
Article
Fisheries
Beibei Zhao, Renhui Mei, Le Li, Di Hu, Lei Li
Summary: This study reveals that JfCXCL8_L1a and JfCXCL8_L1b have different immune pathways, and JfCXCL8_L1b plays a significant role in enhancing the adaptive immunity of T cell-dependent antigen.
Article
Fisheries
Yuhang Liu, Danying Cao, Nan Wu, Xuyang Zhao, Qingsong Zhu, Lian Su, Fatima Altaf, Qianqian Zhang, Haokun Liu, Yongming Li, Bruno Hamish Unger, Yingyin Cheng, Wanting Zhang, Aihua Li, Yaping Wang, Xiao-Qin Xia
Summary: Based on previous research, sinomenine has been found to protect mucosal immunity in farmed fish species by preventing intestinal pathological changes and regulating gene expression related to inflammation. It also enhances immune homeostasis and controls the growth of pathogenic bacteria.