Article
Fisheries
Aldo Felipe Fava, Gildete de Souza Bezerra, Dacley Hertes Neu, Fabio Bittencourt, Altevir Signor, Kerolay Valadao Carvalho, Ricacio Luan Marques Gomes, Wilson Rogerio Boscolo
Summary: This study assessed the feeding frequency for tilapia fingerlings and found that feeding 5 to 6 times a day resulted in better zootechnical performance and partial revenue.
AQUACULTURE NUTRITION
(2022)
Article
Fisheries
Alison A. Sousa, Luisa Nora, Diogo L. A. Lopes, Tiago G. Petrolli, Valcenir J. M. Furlan, Roger Wagner, Charles M. Giacomelli, Matheus D. Baldissera, Aleksandro S. Da Silva
Summary: The study suggests that supplementation of vegetable choline improves fatty acid profiles in the meat of Nile tilapia raised in a biofloc system. Specifically, the treatments with 800 and 1200 mg kg(-1) led to higher levels of polyunsaturated fatty acids, which are desirable for consumers.
Article
Agriculture, Dairy & Animal Science
Rodrigue Yossa, Alexander M. Greiling, Rose Komugisha Basiita, Masautso E. Sakala, Wes A. Baumgartner, Adam Taylor, Delbert M. Gatlin
Summary: The study found that gradually replacing fishmeal protein with DY-Pro did not significantly impact the weight gain or gut characteristics of Nile tilapia, but did improve feed and nutrient utilization. Additionally, DY-Pro had no negative effects on the gastrointestinal tract and could potentially reduce feed costs by improving feed efficiency.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2021)
Article
Fisheries
Francine Oliveira Souza Duarte, Fernanda Gomes de Paula, Cristiano Sales Prado, Raphael Rodrigues dos Santos, Cintia Silva Minafra-Rezende, Clarice Gebara, Moacir Evandro Lage
Summary: The study evaluated the effects of fish oil supplementation on the fatty acid composition and nutritional quality of Nile tilapia fillets. It was found that fish oil supplementation increased the content of beneficial fatty acids and reduced the thrombogenic index in the fillets, making it a good option for commercial production.
Article
Multidisciplinary Sciences
Rodrigue Yossa, Nurulhuda Ahmad Fatan, Kirthigah Palanivelu
Summary: This study found that the genetic improvement of Nile tilapia led to increased generation and protein requirements. The results showed that the GIFT strain of Nile tilapia, after improvement, required a higher level of methionine compared to conventional strains, highlighting the importance of updating nutrient requirement databases.
Article
Physiology
Asit Kumar Bera, Hemanta Chowdhury, Sandeep Ghatak, Ramesh Chandra Malick, Nabanita Chakraborty, Hirak Jyoti Chakraborty, Himanshu Sekhar Swain, M. A. Hassan, Basanta Kumar Das
Summary: In this study, the gut microbiota of O. niloticus was analyzed, and the effects of polysaccharide-based prebiotics were evaluated. The results showed that higher doses of prebiotics improved certain bacterial groups while decreasing others. Functional analysis indicated that energy, protein, and amino acid synthesis pathways were upregulated only at lower doses of prebiotics. These findings suggest that nutritional interventions with plant-based polysaccharides can optimize the gut microbiota and improve the growth performance of commercial fish.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Environmental Sciences
Alaa El-Din H. Sayed, Shaimaa K. Idriss, Sary Kh. Abdel-Ghaffar, Asmaa A. A. Hussein
Summary: The study examined the DNA damage response in erythrocytes of fish exposed to volatile organic compounds (VOCs), finding evidence of genotoxic effects and potential biomarkers for environmental pollution. Despite the dangers of VOCs, little is known about their hemotoxic, cytotoxic, and genotoxic effects on fish. The research optimized an assay method to measure apoptosis and DNA damage in erythrocytes of tilapia fish exposed to benzene, toluene, and xylene and identified the highest levels of apoptosis, DNA damage, and histopathological alterations in fish exposed to benzene.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Fisheries
Hamid Mohammadiazarm, Yasamin Zehirikia, Saeid Kalantarzadeh, Khaled Etehadi, Amir Parviz Salati, Seyed Mohammad Mousavi, Milad Maniat
Summary: This study found that mixed cell is a beneficial alternative to rectangular raceways in terms of water quality, growth performance, and fish health.
AQUACULTURE REPORTS
(2023)
Article
Agriculture, Dairy & Animal Science
Juliana Rodrigues Gomes, Alex Junio da Silva Cardoso, Hamilton Hisano, Renata Maria Pereira de Freitas, Karina Ventura Boechat Martins, Filipe Silveira Azevedo, Mariella Bontempo Freitas, Pollyanna de Moraes Franca Ferreira, Ana Lucia Salaro, Jener Alexandre Sampaio Zuanon
Summary: The addition of poultry liver protein hydrolysate (PLPH) in aquafeeds may affect the productive performance of Nile tilapia, but its effect on stress responses and redox status is uncertain.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2023)
Article
Fisheries
Izabel Volkweis Zadinelo, Marlise Teresinha Mauerwerk, Lilian Carolina Rosa da Silva, Wilson Rogerio Boscolo, Luciana Maria Curty Machado Peretti, Caio Henrique Nascimento, Natalia Cordeiro, Eduardo Luis Cupertino Ballester
Summary: The study aimed to determine the optimal level of inclusion of protein hydrolysate from cattle residues in diets for Nile tilapia fingerlings. The results showed that adding 10% protein hydrolysate in the diets had no negative effects on the performance, chemical composition, and well-being of Nile tilapia.
AQUACULTURE RESEARCH
(2022)
Article
Environmental Sciences
Abul Bashar, Neaz A. Hasan, Mohammad Mahfujul Haque, Md Fazle Rohani, Md Sazzad Hossain
Summary: The use of silica nanoparticles in tilapia feed improved growth performance and feed efficiency, with the most optimum level being at 2 mg/kg in the diet. Blood glucose levels and kidney histology indicated stress in fish fed with 3 mg/kg silica nanoparticles, while 2 mg/kg silica nanoparticles increased gut surface area and goblet cell number significantly.
FRONTIERS IN MARINE SCIENCE
(2021)
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
Fisheries
Leonardo Tachibana, Guilherme Silveira Telli, Danielle de Carla Dias, Giovani Sampaio Goncalves, Mateus Cardoso Guimaraes, Carlos Massatoshi Ishikawa, Raissa Bertoncello Cavalcante, Mariene Miyoko Natori, Miguel Frederico Fernandez Alarcon, Silvana Tapia-Paniagua, Miguel Angel Morinigo, Francisco Javier Moyano, Maria Jose T. Ranzani-Paiva
Summary: This study aimed to verify the positive effects of feeding the commercial probiotic Bioplus 2BC(R) to Nile tilapia. The results showed that the inclusion of 0.04% and 0.08% probiotics led to higher weight gain and thrombocyte counts in the fish, as well as beneficial changes in the gut microbiota.
AQUACULTURE RESEARCH
(2021)
Article
Veterinary Sciences
Everton Andre de Oliveira, Yslla Fernanda Fitz Balo Merigueti, Isabella Braghin Ferreira, Isabele Santos Garcia, Alini Soriano Pereira, Rosemeire de Souza Santos, Louise Bach Kmetiuk, Andrea Pires dos Santos, Alexander Welker Biondo, Rogerio Giuffrida, Vamilton Alvares Santarem
Summary: The study experimentally assessed Nile tilapia as a potential paratenic host for Toxocara spp. It was found that despite shedding viable eggs through the gastrointestinal tract, tilapias may not play a role as a suitable paratenic host. Therefore, the risk of zoonotic transmission through fish meat consumption is low.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Environmental Sciences
Samah S. Oda, El-Sayed M. El-Manakhly, Mohamed A. Abou-Srag, Hossam G. Tohamy
Summary: The study revealed that carbofuran and copper sulfate have a negative impact on the reproductive function of male Nile tilapia, with their combination showing a stronger harmful effect. Exposure to these chemicals led to testicular damage, reduced sperm quality and quantity in male Nile tilapia.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Nutrition & Dietetics
Rita Teodosio, Sofia Engrola, Miguel Cabano, Rita Colen, Karthik Masagounder, Claudia Aragao
Summary: This study evaluated the effect of two methionine sources on the metabolism and growth of Nile tilapia. The results showed that dl-Met supplementation significantly improved the body weight, feed conversion ratio, and protein efficiency ratio of the fish. Additionally, the absorption and utilization of methionine were influenced by the dietary source.
BRITISH JOURNAL OF NUTRITION
(2022)
Article
Fisheries
Antonio Marcos Jaques Ramos, Debora Machado Fracalossi, Luiz Eduardo Lima de Freitas, Viviane Rodrigues Verdolin dos Santos, Ana Paula Oeda Rodrigues
Summary: This study optimized the sedimentation method for stool collection in digestibility tests in pirarucu and found the optimal stool collection time to be 30 minutes after evacuation, with ADC stabilizing between days 8 and 10.
AQUACULTURE RESEARCH
(2022)
Article
Agriculture, Dairy & Animal Science
G. D. P. Konnert, E. Martin, W. J. J. Gerrits, S. W. S. Gussekloo, K. Masagounder, J. Mas-Munoz, J. W. Schrama
Summary: The study investigated the impact of changes in dietary protein and non-protein energy content on fish growth and found that non-protein energy intake has a modest protein-sparing potential, while protein gain is limited by both protein and energy intake in Nile tilapia.
Article
Fisheries
Antonio Marcos Jaques Ramos, Ana Paula Oeda Rodrigues, Luiz Eduardo Lima Freitas, Viviane Rodrigues Verdolin Santos, Bruna Mattioni, Debora Machado Fracalossi
Summary: The study found that corn and broken rice were the most digestible starch sources for juvenile pirarucu, providing the highest levels of digestible starch and energy. The digestibility of starch was inversely related to starch content and directly related to fiber content of the tested ingredients.
AQUACULTURE RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Karine Pinel, Cecile Heraud, Guillaume Morin, Karine Dias, Annaelle Marce, Linda Beauclair, Stephanie Fontagne-Dicharry, Karthik Masagounder, Martina Klunemann, Iban Seiliez, Florian Beaumatin
Summary: This study investigated the metabolism of synthetic methionine (MET) sources DL-MET and DL-Methionine Hydroxy Analog (MHA) in rainbow trout (RT) cells. The results demonstrated that DL-MET was absorbed and metabolized more efficiently than MHA, and both synthetic MET sources exhibited similar effects in RT liver.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Fisheries
L. T. T. Phan, J. Kals, K. Masagounder, J. Mas-Munoz, J. W. Schrama
Summary: This study evaluated the effect of dietary macronutrient composition on the energy utilization efficiency for growth in African catfish using both the digestible energy (DE) and net energy (NE) approaches. The results suggested that the NE approach is more suitable for energy evaluation of feed/ingredients for African catfish.
AQUACULTURE REPORTS
(2022)
Article
Agriculture, Dairy & Animal Science
Shiwei Xie, Juyun He, Karthik Masagounder, Yongjian Liu, Lixia Tian, Beiping Tan, Jin Niu
Summary: The effects of different dietary lysine levels on growth performance, lipid metabolism, antioxidant capacity, mitochondrial biogenesis, and immune response of grass carp were evaluated in a 10-week experiment. The results showed that suitable lysine levels promoted growth and mitochondrial biogenesis, and increased antioxidant capacity in the liver. The mRNA levels of certain genes in the liver and intestine were also affected by dietary lysine levels.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2022)
Article
Fisheries
Xinyue Tao, Juyun He, Jingjing Lu, Zhongjie Chen, Min Jin, Lefei Jiao, Karthik Masagounder, Weijian Liu, Qicun Zhou
Summary: This study investigated the effects of Bacillus subtilis DSM 32315 (Gutcare (R)) supplementation on the growth performance, antioxidant status, immune ability, and intestinal function of juvenile Litopenaeus vannamei fed with high/low-fishmeal diets. The results showed that Gutcare (R) supplementation could improve the growth performance, antioxidant capacity, and immune response of the shrimp, as well as enhance intestinal function. Additionally, Gutcare (R) supplementation also altered the composition of the intestinal bacterial community.
AQUACULTURE REPORTS
(2022)
Letter
Fisheries
Karthik Masagounder
Article
Engineering, Marine
Stef Claessens, Claudia Aragao, Flavia Bandero Hoffling, Isabela Pinheiro, Debora Machad O. Fracalossi, Felipe Nascimento Vieira
Summary: The study evaluated the addition of mussel meal as a feed additive for whiteleg shrimp to improve growth and cold resistance. The results showed that adding 3% or 4% mussel meal had similar effects as the control group, while adding 1% or 2% mussel meal significantly improved final weight, weight gain, and relative growth rate, and reduced feed conversion ratio. Furthermore, there were no differences in thermal shock resistance and survival among the treatment groups.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Agriculture, Multidisciplinary
Maria Fernanda Oliveira da Silva, Rafael de Souza Romaneli, Luis Felipe Mussoi, Karthik Masagounder, Debora Machado Fracalossi
Summary: Protein quality depends on amino acid composition and digestibility. Assessing the apparent digestibility coefficients (ADCs) of nutrients in commonly used feedstuffs is crucial for formulating efficient aquafeed. In this study, ADCs of soybean meal (SBM) and poultry by-product meal (PBM) were evaluated for juvenile Nile tilapia using different types of reference diets. The results showed that Nile tilapia had a high capacity to digest SBM and PBM, with most ADCs exceeding 90%. The type of reference diet affected the ADCs, with the practical reference diet providing the highest ADC, particularly for SBM.
Article
Agriculture, Multidisciplinary
Luiz Eduardo Lima de Freitas, Tarcila Souza de Castro Silva, Debora Machado Fracalossi
Summary: The study suggests that the ratio of digestible protein to energy in feed significantly influences the growth and economic performance of jundia juveniles, with the optimal DP:DE ratio being 25 g MJ(-1).
Article
Fisheries
Penelope Bastos, Pedro Gallardo, Carlos Rosas, Felipe do N. Vieira, Carlos P. Silva, Gabriel B. Oliveira, Fernando D. Brignol, Luciana Guzella, Bruna Mattioni, Debora M. Fracalossi
Summary: The study found that compared to the semi-moist diet, the pelleted diet was more stable in water and had lower leaching. Both diets had similar effects on the growth, survival, feed efficiency and conversion rates of octopuses, but the semi-moist diet had higher protein and energy intake rates. The pelleted diet also stimulated higher digestive enzyme activity, promoting nutrient absorption and utilization.
AQUACULTURE RESEARCH
(2021)
