Article
Fisheries
H. Peres, J. M. A. Freitas, P. L. P. Carvalho, W. M. Furuya, M. M. P. Satori, A. Oliva-Teles, L. E. Pezzato, M. M. Barros
Summary: The study revealed that a dietary DP/DE ratio of 16.5-17.2 mg kJ(-1) promoted the maximum growth performance of Nile tilapia juveniles. With an increase in dietary DP/DE ratio, feed intake and energy retention decreased linearly, while feed efficiency increased linearly.
Article
Fisheries
Milena Souza dos Santos Sanchez, Mariana Lins-Rodrigues, Jhonis Ernzen Pessini, Fabio Bittencourt, Wilson Rogerio Boscolo, Altevir Signor
Summary: This study evaluated the effects of dietary supplementation with L-carnitine on growth performance, gut and muscle histological parameters, blood hematology, plasma biochemical parameters, and antioxidant enzymes in Nile tilapia juveniles. Results showed that supplementation with L-carnitine improved growth performance and reduced lipid content in the filet, while also increasing the activity of the enzyme catalase in the liver. Different inclusion levels of L-carnitine had varying effects on weight gain, fat deposition, and triacylglycerol in the fish.
Article
Chemistry, Applied
Amalia Ferreira, Thiago Cahu, Jinchuan Xu, Andreas Blennow, Ranilson Bezerra
Summary: A raw starch digesting ?-amylase, AMY-T, was identified in the intestine of Nile tilapia. It showed high catalytic efficiency and adsorption towards various carbohydrates, with stable endo-activity under a wide range of pH and solvent conditions. Characterization revealed the end products of raw starch hydrolysis and the catalytic attack pattern on starch granules, suggesting high potential for industrial use.
Article
Biology
Felipe R. Blasco, Edwin W. Taylor, Cleo A. C. Leite, Diana A. Monteiro, F. Tadeu Rantin, David J. McKenzie
Summary: Research suggests that larger individuals within fish species may be more sensitive to global warming due to limitations in their capacity to provide oxygen for aerobic metabolic activities. The tolerance of acute warming declined significantly with mass, indicating potential consequences for population productivity and the survival and fitness of larger individuals in a warmer world.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Genetics & Heredity
Binglin Chen, Wei Xiao, Zhiying Zou, Jinglin Zhu, Dayu Li, Jie Yu, Hong Yang
Summary: Metabolic analysis of Nile tilapia with superior growth performance revealed significant differences in biochemical parameters and gene expression in key metabolic pathways, such as the tricarboxylic acid cycle, fatty acid biosynthesis and metabolism, and cholesterol biosynthesis and metabolism.
FRONTIERS IN GENETICS
(2022)
Article
Marine & Freshwater Biology
Rui-Xin Li, Ling-Yun Chen, Samwel M. M. Limbu, Yu-Cheng Qian, Wen-Hao Zhou, Li-Qiao Chen, Yuan Luo, Fang Qiao, Mei-Ling Zhang, Zhen-Yu Du
Summary: This study investigated the metabolic responses to high dietary cholesterol intake in Nile tilapia. The results showed that high cholesterol intake led to increased body weight, impaired liver function, reduced mitochondria number, and altered gut microbiome composition in fish. High cholesterol intake also inhibited lipid and protein catabolism, leading to metabolic disorders in fish. This study provides new insights into the systemic metabolic response to high cholesterol intake in fish.
MARINE LIFE SCIENCE & TECHNOLOGY
(2023)
Article
Fisheries
Mariel Gullian-Klanian, Mercedes Quintanilla-Mena, Carlos Puch Hau
Summary: High-throughput sequencing was used to study bacterial diversity in a Biofloc aquaculture system and its effect on digestive enzyme activity in Nile tilapia. The study found that the biofloc group had higher bacterial diversity and a different composition compared to the control group. Certain bacterial genera correlated significantly with enzyme activity. The biofloc microbiota provided enzymes that improved digestion and nutrient assimilation in the fish.
Article
Fisheries
Kunming Li, Jiahua Zhu, Kang Li, Wei Liang, Jiansong Zhang, Qian Zhang, Xinying Jiao, Xiaodan Wang, Xiumei Wei, Jialong Yang
Summary: High-fat diet impairs lymphocyte homeostasis and T-cell-mediated adaptive immune response in tilapia, which may be associated with abnormal lipid metabolism in lymphocytes.
DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Kang Li, Xiumei Wei, Xinying Jiao, Wenhai Deng, Jiaqi Li, Wei Liang, Yu Zhang, Jialong Yang
Summary: This study in Nile tilapia models suggests that T cells play a critical role in resisting Edwardsiella piscicida infection via cytotoxicity and are essential for IgM(+) B cell response. The functional similarity of T cells between tilapia and mammals is speculated to be due to transcriptional networks and metabolic reprogramming triggered by mTORC1 and MAPK/ERK pathways. This study provides important insights into T cell evolution and potential interventions for human immunodeficiency.
Article
Biochemistry & Molecular Biology
Jose Andres Galeana-Lopez, Cynthia E. Lizarraga-Velazquez, Crisantema Hernandez, Nayely Leyva-Lopez, J. Basilio Heredia
Summary: The study showed that CHM dietary supplementation in Nile tilapia exposed to hypoxia can promote antioxidant response through CAT modulation, with no significant effects on growth and feed efficiency.
Review
Fisheries
Gauthier D. P. Konnert, Walter J. J. Gerrits, Sander W. S. Gussekloo, Johan W. Schrama
Summary: This study challenges the idea of an optimal P:E ratio in Nile tilapia feeds, and quantitatively describes the effects of protein and energy intake on nutrient partitioning, feed efficiency, and growth. The results suggest that there is no physiological basis for an optimal P:E, contradicting previous beliefs.
REVIEWS IN AQUACULTURE
(2022)
Article
Fisheries
Sevdan Yilmaz, Sebahattin Ergun, Tolga Sahin, Ekrem Sanver Celik, Hany M. R. Abdel-Latif
Summary: In this study, it was found that supplementing diets with reishi mushroom powder improved growth parameters and gene expression responses related to growth, digestion, and lipid metabolism in Nile tilapia. The highest improvement in weight, weight gain, and specific growth rate was observed in the group fed with a 10.0 g/kg inclusion dose of reishi mushroom powder. These findings highlight the prebiotic effects of reishi mushroom powder in aquafeed and its potential for enhancing tilapia culture sustainability.
Article
Environmental Sciences
Shaoying Xing, Ping Li, Shuwen He, Zhihan Cao, Xu Wang, Xuqian Cao, Bin Liu, Chengzhuang Chen, Hong You, Zhi-Hua Li
Summary: This study investigated the effects of TPT exposure on osmoregulation and energy metabolism in gill under different salinity. The results showed that TPT exposure caused changes in gill tissue morphology and affected the expression of related genes. Furthermore, TPT exposure at different salinity levels also influenced the activities of Na+- K+-ATPase, Ca2+-Mg2+-ATPase, succinate dehydrogenase, and lactate dehydrogenase in the fish.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Agriculture, Dairy & Animal Science
Jiahua Zhu, Fan Zhang, Yuxing Huang, Jingyu Pan, Erchao Li, Jian G. Qin, Liqiao Chen, Xiaodan Wang
Summary: This research explores the influence of myo-inositol on the hypertonic stress adaptation of Nile tilapia by increasing lipid utilization and improving osmotic regulation ability. It was found that myo-inositol supplementation improved growth performance, promoted protein deposition, reduced fat accumulation, and alleviated liver lipid accumulation. Additionally, it reduced serum lipids and upregulated the expression of ion transporter-related genes. The findings suggest that dietary supplementation with myo-inositol can regulate lipid metabolism and improve the physiological response of Nile tilapia to hypertonic stress.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Malachy N. O. Ajima, Kundan Kumar, Nalini Poojary, Pramod K. Pandey
Summary: This study found that long-term exposure to diclofenac can induce oxidative imbalance, neurotoxicity, and alterations in gene expression related to stress in Nile tilapia. These biomarkers could potentially be used to monitor the adverse effects of pharmaceuticals on organisms in aquatic ecosystems.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)