Article
Fisheries
Ying Hang, You Fu, Chenxu Jin, Xueming Hua
Summary: The study showed that enzymatically hydrolysed soybean meal reduced growth performance in rainbow trout but improved liver health, decreased lipid content and increased protein content in fish muscle. The addition of amino acids and bile acid significantly improved growth performance and protein content, with different effects on fish growth performance and fatty acid content depending on the combination of additives.
AQUACULTURE RESEARCH
(2022)
Article
Fisheries
Henrike Seibel, Elvis Chikwati, Carsten Schulz, Alexander Rebl
Summary: This study evaluated the welfare of rainbow trout under inadequate husbandry conditions by assessing a diverse range of feeding stress markers. Soybean meal-induced enteritis was observed in rainbow trout, along with changes in blood parameters and gene expression. The findings provide valuable information for monitoring feeding regimens and developing detection devices in aquaculture.
Article
Fisheries
T. W. O. Staessen, M. C. J. Verdegem, J. W. Schrama
Summary: This study investigated the effects of dietary bile acid supplementation on digestibility and metabolism in rainbow trout. The results showed that bile acids are a limiting factor for fat digestion in trout and that supplementation can improve fat digestibility. Additionally, dietary bile acids effectively participate in enterohepatic circulation and are absorbed in the intestine.
Article
Agriculture, Dairy & Animal Science
Miranda L. Elling-Staats, Arie K. Kies, Myrthe S. Gilbert, Rene P. Kwakkel
Summary: Poorly digestible proteins can lead to increased protein fermentation and the production of harmful metabolites in the ceca of broilers. In this study, a model was developed to create a contrast in protein fermentation by increasing the prececal flow of protein within ingredients. The results showed that toasting dRSM is a suitable model to increase protein flows into the hind-gut and evaluate the effects of protein fermentation.
Article
Agriculture, Dairy & Animal Science
Nicole Verdile, Rolando Pasquariello, Gloriana Cardinaletti, Emilio Tibaldi, Tiziana A. L. Brevini, Fulvio Gandolfi
Summary: Aquaculture is expanding due to high demand for fish consumption, prompting efforts to find sustainable alternative feeds and understand intestinal morphology and physiology. Research on intestinal stem-cell niches in fish species and the role of telocytes in intestinal homeostasis has potential to improve sustainability and growth performance in trout farming.
Article
Agriculture, Multidisciplinary
Hao Ma, Lei Wang, Haojie Yu, Weiwei Wang, Guofang Wu, Guangyong Qin, Zhongfang Tan, Yanping Wang, Huili Pang
Summary: This study aimed to screen lactic acid bacteria with excellent growth and fermentation characteristics and evaluate their potential as probiotics for fermenting soybean meal. The selected strains showed good physiological and biochemical characteristics, as well as inhibitory effects against various harmful bacteria. The addition of lactic acid bacteria improved fermentation quality and reduced harmful bacteria, especially after 30 days of fermentation.
CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE
(2022)
Article
Biochemistry & Molecular Biology
Julieta S. De Anna, Flavia Bieczynski, Juan Guillermo Carcamo, Andres Venturino, Carlos M. Luquet
Summary: Chlorpyrifos, a widely detected organophosphorus pesticide, affected the transport activity of Abcc proteins and enzyme activities in rainbow trout fish in North Patagonia, Argentina. However, exposure to chlorpyrifos did not influence the expression levels of studied genes.
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Francisco J. Toledo-Solis, Ana M. Larran, Blanca Martin, Pedro Lopez de la Cuesta, Immaculada Mateos-Aparicio, Valentin Perez, Francisco J. Moyano, Ignacio Fernandez
Summary: The search for and use of alternative raw materials to replace fish meal and soybean meal is crucial for the sustainable growth of aquaculture. Narbonne vetch meal has been identified as a potential alternative to soybean meal, and previous studies have shown that its use does not compromise fish growth performance. However, further research has revealed that high replacement of soybean meal with narbonne vetch meal can have negative physiological effects on rainbow trout, including decreased enzyme activity, cell shrinkage in hepatocytes, and reduced plasma triglycerides and hepatic vitamin E levels. The study also found that even a lower replacement ratio of soybean meal with narbonne vetch meal can have minor effects on fish physiology. This study provides insights for improving the utilization of narbonne vetch meal as an alternative raw material in aquafeeds.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2023)
Article
Biology
Francisco Javier Toledo-Solis, Ana M. Larran, Juan B. Ortiz-Delgado, Carmen Sarasquete, Jorge Dias, Sofia Morais, Ignacio Fernandez
Summary: To ensure food security and nutrition, sustainable aquafeeds with reduced fish meal content should be used in fish farming. Soybean meal is commonly used as an alternative raw material, but its high content can affect fish growth and physiology. This study found that the expression of six microRNAs in blood plasma was associated with high soybean meal content and related physiological consequences. These findings contribute to our understanding of the physiological impact of soybean meal content in farmed fish and suggest that circulating microRNAs may be suitable biomarkers for fish physiology monitoring.
Article
Fisheries
Francesco Bordignon, Laura Gasco, Marco Birolo, Angela Trocino, Christian Caimi, Cristina Ballarin, Martina Bortoletti, Carlo Nicoletto, Carmelo Maucieri, Gerolamo Xiccato
Summary: The study evaluated the effects of replacing fishmeal with partially defatted Hermetia illucens meal on the growth and fillet quality of rainbow trout in a low-tech aquaponic system. There were minimal effects on growth and fillet quality, but certain impacts on gut histology and fillet color and nutritional characteristics were observed at higher replacement rates, warranting further investigation.
Article
Marine & Freshwater Biology
Julio C. Painefilu, Carolina Gonzalez, Juan G. Carcamo, Virginia A. Bianchi, Carlos M. Luquet
Summary: Global climate change leads to explosive population growth of phytoplanktonic species, which often produce toxic compounds. This study investigated the toxic effects of microcystin-LR (MCLR) on rainbow trout and found that it modulates the activity and expression of certain proteins in the fish's middle intestine. The effects of MCLR varied at different time points, indicating the complex interactions between the toxin and the fish.
AQUATIC TOXICOLOGY
(2022)
Article
Food Science & Technology
Martina Magnani, Anna Claret, Enric Gisbert, Luis Guerrero, Rifat Ullah Khan, Shabana Naz
Summary: This research compared the effects of different levels of yellow mealworm beetle larvae meal in feed on the sensory quality of rainbow trout fillets and assessed the acceptability of this protein source to consumers. The findings showed that adding yellow mealworm beetle larvae meal did not affect the sensory quality of the trout fillets, but consumers still had some level of rejection towards this alternative protein.
Article
Cell Biology
Takashi Nakanishi, Hirokazu Fukui, Xuan Wang, Shin Nishiumi, Haruka Yokota, Yutaka Makizaki, Yoshiki Tanaka, Hiroshi Ohno, Toshihiko Tomita, Tadayuki Oshima, Hiroto Miwa
Summary: High-fat diet-induced dysbiosis in the small intestine leads to pathological changes in the luminal environment, disruption of small-intestinal mucosal integrity, and minimal inflammation in the gut-liver axis, ultimately resulting in the development of steatohepatitis in mice.
Article
Cell Biology
Nicole Verdile, Federica Camin, Radmila Pavlovic, Rolando Pasquariello, Milda Stuknyte, Ivano De Noni, Tiziana A. L. Brevini, Fulvio Gandolfi
Summary: A culture platform that efficiently promotes cell differentiation into mature enterocytes was developed and compared with three other options. The presence of fibroblasts in the platform was found to be particularly effective in enhancing the differentiation of epithelial cells and closely recreating the complexity of the intestinal mucosa.
Article
Food Science & Technology
Yiwen Wu, Manman Zhao, Yuting Xia, Weiqing Sun, Guangquan Xiong, Liu Shi, Yu Qiao, Wenjing Wu, Anzi Ding, Lang Chen, Lan Wang, Sheng Chen
Summary: In order to study the deterioration of rainbow trout muscle quality caused by ammonia exposure, experiments with different concentrations of ammonia stress were conducted. The results showed that higher ammonia exposure led to increased bitterness and decreased umami and sweetness of the muscle, as well as decreased polyunsaturated fatty acids (PUFA) content. The expression of lipid metabolism-related genes was also affected, inhibiting lipid synthesis and promoting lipid oxidation. These findings are important for understanding the relationship between muscle quality, lipid metabolism, and environmental adaptability of rainbow trout (O. mykiss).
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.