Article
Biochemistry & Molecular Biology
Yue Zhang, Peijun Zhang, Xinchi Shang, Yuting Lu, Yuehong Li
Summary: Exposure of carp to lead resulted in alterations of gut microbiota composition and destruction of intestinal structural integrity.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2021)
Article
Ecology
Loreley Castelli, Belen Branchiccela, Hector Romero, Pablo Zunino, Karina Antunez
Summary: Honey bees play a crucial role in food production and biodiversity maintenance through pollination. They have different survival strategies in cold temperate regions and experience lifecycle alterations in tropical or subtropical climates. The gut microbiota of honey bees in subtropical colonies changes seasonally, with environmental variables impacting its composition.
Article
Fisheries
Songhuan Chang, Jiali Wang, Chuanju Dong, Yanliang Jiang
Summary: Common carp is an important freshwater farmed fish species worldwide and is susceptible to pathogen Aeromonas hydrophila. In this study, 16S rDNA sequencing was used to analyze the composition and biodiversity of intestinal microbiota in common carp following A. hydrophila infection. The results showed that the diversity and richness of microbiota decreased after infection, and the relative abundance of specific genera was significantly altered. Further analysis revealed potential correlations between certain genera and host resistance against pathogens. This study contributes to our understanding of the underlying mechanisms of intestinal microbial community in resisting pathogens and may provide strategies for disease control in aquaculture.
AQUACULTURE REPORTS
(2023)
Article
Environmental Sciences
Xulu Chang, Meiru Kang, Yihao Shen, Lili Yun, Guokun Yang, Lei Zhu, Xiaolin Meng, Jianxin Zhang, Xi Su
Summary: The research explores the effects of B. coagulans on Cd2+ bioaccumulation, gut barrier function, oxidative stress, and gut microbiota in common carp. B. coagulans can maintain gut barrier function by reducing Cd2+ bioaccumulation, increasing tight junction protein gene mRNA levels, and decreasing diamine oxidase and D-lactic acid levels in Cd2+-exposed fish. Additionally, B. coagulans can relieve oxidative stress and reverse altered intestinal microbiota diversity and composition in common carp exposed to Cd2+.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Ming-Yan Ouyang, Xiao-Sa Feng, Xin-Xin Li, Bin Wen, Jun-Heng Liu, Jun-Nan Huang, Jian-Zhong Gao, Zai-Zhong Chen
Summary: The study showed that exposure to microplastics did not impact fish growth, but had a delayed effect following their excretion. While intake and excretion of microplastics did not affect isotopic and elemental compositions, it altered the composition of intestinal microbiota. Interestingly, after excretion, the bacterial community structure of fish treated with microplastics showed resilience and grouped together with the control.
Article
Environmental Sciences
Lixia Zhang, Zi Yang, Mengxiao Yang, Fan Yang, Gege Wang, Dandan Liu, Xuejun Li, Lianlian Yang, Zhanqi Wang
Summary: This study investigated the effects of copper toxicity on freshwater fish by studying the oxidative stress, liver transcriptome, intestinal microbiota, and histopathology of common carp exposed to copper. The results showed that copper exposure induced oxidative stress, altered gene expression in the liver, changed bacterial composition in the intestines, and caused tissue damage. These findings contribute to a better understanding of the mechanisms underlying copper toxicity in fish.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Biochemistry & Molecular Biology
Huiyuan Yu, Yue Zhang, Peijun Zhang, Xinchi Shang, Yuting Lu, Yunhe Fu, Yuehong Li
Summary: The study found that exposure to fluorine led to intestinal tissue damage, decreased expression of tight junction proteins, and changes in gut microbiota composition, including a significant increase in the abundance of pathogenic bacterium Plesiomonas and a significant inhibition of critical probiotic Akkermansia.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2021)
Article
Environmental Sciences
Ping Li, Cheng-Zhuang Chen, Xue-Li Zhao, Ling Liu, Zhi-Hua Li
Summary: This study assessed the chronic toxicity of norfloxacin (NOR) on the gut microbiota of juvenile common carp. The results showed that environmental levels of NOR can alter the composition, structure, and abundance of the gut microbiota, as well as enhance antibiotic resistance genes (ARGs), affecting the intestinal health of fish.
Article
Immunology
Jules Petit, Irene de Bruijn, Mark R. G. Goldman, Erik van den Brink, Wilbert F. Pellikaan, Maria Forlenza, Geert F. Wiegertjes
Summary: Dietary supplementation of fish with beta-glucans has been found to have immunomodulatory effects, but the exact mechanisms are still unclear. In this study, the researchers identified the active naive microbiota in the intestine of common carp and found that certain bacteria are capable of fermenting dietary beta-glucans. They also observed fermentation of two different beta-glucan preparations in vitro, resulting in the production of distinct short-chain fatty acids (SCFA). Additionally, they demonstrated the potential immunomodulatory effects of SCFAs on head kidney leukocytes, suggesting a possible role in beta-glucan-induced immunomodulation.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Fisheries
Xiaolin Meng, Shengkui Wu, Wenpan Hu, Zhengxiang Zhu, Guokun Yang, Yanmin Zhang, Chaobin Qin, Liping Yang, Guoxing Nie
Summary: This study found that supplementing the diet with Clostridium butyricum can enhance the intestinal immunity of common carp by regulating the intestinal microbiota and improving the defense function of the intestinal barrier.
Article
Fisheries
Yeke Wang, Feng Chen, Jun He, Jun Chen, Ge Xue, Yan Zhao, Yanghui Peng, Ping Xie
Summary: This study reveals significant differences in the structure and protein composition of the egg envelopes of common carp adhesive eggs and grass carp semi-buoyant eggs, with common carp eggs having a thicker egg envelope and adhesive layer. Proteomic changes in common carp adhesive eggs after fertilization suggest a role in cell and fish egg morphology maintenance. Proteins upregulated in common carp adhesive eggs after fertilization, such as coagulation factor XIII A, zona pellucida proteins, and cystatin, may play a role in egg envelope hardening and embryonic development protection. Additionally, higher levels of alpha-2-macroglobulin-like protein in fertilized common carp eggs indicate potential for effective immune defense.
Article
Multidisciplinary Sciences
Marcel Martinez-Porchas, Aranza Preciado-Alvarez, Francisco Vargas-Albores, Martina Hilda Gracia-Valenzuela, Francesco Cicala, Luis Rafael Martinez-Cordova, Diana Medina-Felix, Estefania Garibay-Valdez
Summary: Through a meta-analysis of several projects studying the gut microbiota of tilapia exposed to feed additives, it was found that probiotics and other additives did not show significant differentiation patterns in the tilapia gut microbiota. The study also revealed that the tilapia gut microbiota is a dynamic microbial community, capable of plastically responding to feed additives.
Article
Fisheries
Lan Zhang, Lei Wang, Jintai Huang, Zhan Jin, Junxiang Guan, Hang Yu, Meng Zhang, Miao Yu, Hongxia Jiang, Zhigang Qiao
Summary: In this study, the effects of A. hydrophila infection on the intestinal microbiota, transcriptome, and metabolome of Cyprinus carpio were investigated. The results showed significant changes in the intestinal microbiota, with a decrease in beneficial bacteria and an increase in pathogenic bacteria. The transcriptome analysis revealed altered expression of immune-related genes, and the metabolomic analysis indicated disturbances in amino acid metabolism. This study provides insight into the underlying mechanisms of the intestinal microbiota, immunity, and metabolism involved in the response of carp to A. hydrophila infection.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Zhiruo Miao, Zhiying Miao, Min Liu, Shiwen Xu
Summary: This study investigated the intestinal injury caused by the pesticide IMI in common carps and whether the hormone melatonin (MT) can attenuate this injury. The results showed that IMI altered the composition and function of the intestinal microbiota, disrupted the integrity of the intestinal structure, and increased intestinal permeability. It was found that IMI increased intestinal tight junction permeability through the induction of peptidoglycan (PGN) secretion. However, the addition of MT significantly reduced IMI-induced intestinal toxicity by inhibiting PGN synthesis and restoring tight junction permeability, thereby reducing intestinal injury.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Fisheries
Bing-Yao Sun, Hui-Xing Yang, Wen He, Dan-Yang Tian, Hai-Yan Kou, Kang Wu, Cai-Gen Yang, Zhong-Qin Cheng, Xue-Hong Song
Summary: The study aimed to develop a reliable grass carp model with disrupted intestinal microbiota using different concentrations of antibiotics. The effects of various antibiotic regimens on microbiota composition, growth, health status, and histology in different organs were compared. The highest antibiotic concentration was found to significantly disrupt microbiota composition without substantial negative effects on growth and health in grass carp, suggesting this regimen as a suitable option for disrupting intestinal microbiota.
Article
Food Science & Technology
Simon J. Davies, Eric Roderick, Thomas Brudenell-Bruce, Charles D. Bavington, Finnian Hartnett, John Hyland, Cecilia de Souza Valente, Alex H. L. Wan
Summary: The study found that enriching farmed tilapia with a high omega-3 (n-3) Thraustochytrids protist oil source before harvesting can significantly increase the n-3 content of the fillet. Docosahexaenoic acid (DHA) is the main attributing fatty acid for the n-3 increase and can improve the lipid composition of tilapia. This technique could provide consumers with more nutritional benefits beyond high-quality protein.
EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY
(2022)
Article
Fisheries
Fawzy Magouz, Hasnaa Abu-Ghanima, Amr Zaineldin, Mahmoud S. Gewaily, Ali Soliman, Asem A. Amer, Eman M. Moustafa, Elsayed M. Younis, Abdel-Wahab A. Abdel-Warith, Simon J. Davies, Hien Van Doan, Wanaporn Tapingkae, Mahmoud A. O. Dawood
Summary: In this study, it was found that Bacillus subtilis can alleviate the negative effects of mycotoxins on Mullet performance, while ochratoxin A reduces performance. Additionally, dietary supplementation of Bacillus subtilis can improve fish growth, immune system function, and reduce pathological effects, while ochratoxin A has adverse effects on fish health.
AQUACULTURE REPORTS
(2022)
Correction
Fisheries
Bjorn Kok, Wesley Malcorps, Michael F. Tlusty, Mahmoud M. Eltholth, Neil A. Auchterlonie, David C. Little, Robert Harmsen, Richard W. Newton, Simon J. Davies
Article
Fisheries
Sadia Nazir, Noor Khan, Hamda Azmat, Saima Naveed, Malik Muhammad Ramzan, Simon J. Davies
Summary: This study investigated the artificial breeding response, embryonic and larval development of giant snakehead fish using different dosages of stimulatory hormones. The results showed that T-3 dosage had the highest fecundity rate and survival rate.
JOURNAL OF THE WORLD AQUACULTURE SOCIETY
(2023)
Article
Fisheries
Ramasamy Harikrishnan, Gunapathy Devi, Paramaraj Balamurugan, Abdel-Wahab A. Abdel-Warith, Elsayed M. Younis, Hien Van Doan, Chellam Balasundaram, Simon J. Davies, Ehab El-Haroun
Summary: The current study investigated the effects of dietary mannan-oligosaccharides (MOS) on growth, hemato-biochemical changes, digestive-antioxidant enzyme activity, immune response, and disease resistance in milkfish. The results showed that milkfish fed MOS diets had significant impacts on growth parameters, feed conversion ratio (FCR), and protein efficiency ratio (PER). The inclusion of 2g or 3g MOS in the diet resulted in higher levels of total protein (TP), globulin (GB), glucose (GLU) levels, as well as increased enzyme activity. The addition of MOS also increased gut microflora and enhanced antioxidative enzyme activity.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Review
Fisheries
Stefanie M. Colombo, Koushik Roy, Jan Mraz, Alex H. L. Wan, Simon J. Davies, Sean M. Tibbetts, Margareth Overland, David S. Francis, Melissa M. Rocker, Laura Gasco, Emma Spencer, Marc Metian, Jesse T. Trushenski, Giovanni M. Turchini
Summary: This review describes the role and importance of 'blue-food production' in a circular bioeconomy, particularly in improving the sustainability and resilience of aquaculture. It also discusses emerging nutrient sources for fed-aquaculture species.
REVIEWS IN AQUACULTURE
(2023)
Article
Multidisciplinary Sciences
Sadia Nazir, Noor Khan, Mahroze Fatima, Hamda Azmat, Saima Naveed, Malik Muhammad Ramzan, Muhammad Asghar, Sheeza Bano, Ayesha Khizer, Alex H. L. Wan, Simon John Davies
Summary: A three-month feeding trial was conducted to determine the protein requirement of bullseye snakehead. The results showed that diets with 55% crude protein had the highest growth performance and nutrient profile. However, the study also highlighted the presence of an upper protein constraint and suggested further quantitative studies.
Article
Agriculture, Dairy & Animal Science
Shimaa. A. A. Amer, Mahmoud Farahat, Ahmed Gouda, Ahmed A. A. Abdel-Wareth, Abdel-Wahab A. Abdel-Warith, Elsayed. M. M. Younis, Gehad Elsaid Elshopakey, Weam Mohamed Baher, Gehan. K. K. Saleh, Simon. J. J. Davies, Ghadeer. A. A. Attia
Summary: This study evaluated the effects of adding microbial enzymes to broiler chicken diets. The results showed that although the enzymes did not have a positive impact on growth performance, they improved the fatty acid profile, immune status, and blood biochemistry of the chickens.
Article
Agriculture, Dairy & Animal Science
Shimaa A. Amer, Ahmed Gouda, Gehan K. Saleh, Arwa H. Nassar, Abdel-Wahab A. Abdel-Warith, Elsayed M. Younis, Dalia E. Altohamy, Maha S. Kilany, Simon J. Davies, Anaam E. Omar
Summary: The expanding knowledge of risks posed by antibiotic resistance has led to an increase in the search for alternatives to antibiotic growth stimulants. This study assessed the effects of dietary frankincense resin oil on the performance and immune status of broiler chickens. Results showed that frankincense oil supplementation had positive effects on growth, intestinal histology, fatty acid composition, and immunity in broilers.
Article
Biology
Shimaa A. Amer, Amany Behairy, Ahmed Gouda, Abdel-Wahab A. Abdel-Warith, Elsayed M. Younis, Elshimaa M. Roushdy, Amr A. Moustafa, Noura A. Abd-Allah, Rehab Reda, Simon J. Davies, Seham M. Ibrahim
Summary: This study evaluated the potential use of 1,3-beta-glucans as antibiotic alternatives and their effects on the growth performance and immune response of broiler chickens. The results showed that dietary inclusion of 1,3-beta-glucans had no adverse effects on the growth and internal organs of chickens. In fact, it improved antioxidant activity, immune response, and enriched the breast muscle with polyunsaturated fatty acids.
Article
Fisheries
Medhat S. S. Shakweer, Gehad E. E. Elshopakey, Abdelwahab A. A. Abdelwarith, Elsayed M. M. Younis, Simon John Davies, Samia Elbahnaswy
Summary: The outbreaks caused by Vibrio spp. pose a significant threat to the potential growth of the penaeid culture industry, which currently relies on antibiotic administration. Our study aimed to determine the immune response of L. vannamei during Vibrio spp. infection in Egyptian hatcheries and after antibiotic medication. The results showed that florfenicol in medicated feed could effectively control vibriosis and improve shrimp's immune response.
Article
Fisheries
Afaf N. Abdel Rahman, Shimaa A. Amer, Shimaa R. Masoud, Mahmoud M. El-Saber, Ali Osman, Elsayed M. Younis, Abdelwahab A. Abdelwarith, Simon J. Davies, Tarek Khamis, Rowida E. Ibrahim
Summary: The potential of neem seed protein hydrolysate (NSPH) as a replacement for fishmeal (FM) in the Nile tilapia diet was studied. The results showed that NSPH can promote fish's growth, immune competence, digestive and absorptive capability, and disease resistance.
Article
Marine & Freshwater Biology
Rowida E. Ibrahim, Mohamed A. Elbealy, Gamal A. Salem, Abdelwahab A. Abdelwarith, Elsayed M. Younis, Eman Wagih, Ahmed Asaid Elkady, Simon J. Davies, Afaf N. Abdel Rahman
Summary: An acute exposure study of the fungicide mancozeb (MAZ) was conducted on Oreochromis niloticus for 96 hours. The study found that MAZ significantly affected the behavior, clinical symptoms, and mortality of the fish, as well as causing changes in hematological, biochemical, immunological, and oxidant/antioxidant parameters. The study demonstrates the toxicity of MAZ to fish and its physiological disruption.
AQUATIC TOXICOLOGY
(2023)
Article
Veterinary Sciences
Doaa Ibrahim, Hassainen I. El-sayed, Elsabbagh R. Mahmoud, Ghada I. Abd El-Rahman, Shefaa M. Bazeed, Abdelwahab A. Abdelwarith, Aya Elgamal, Samah S. Khalil, Elsayed M. Younis, Asmaa T. Y. Kishawy, Simon J. Davies, Abdallah E. Metwally
Summary: The efficient utilization of raw feed ingredients is important in poultry farming. This study investigated the use of fermented and enzymatically treated barley as an alternative to corn in poultry feed. The results showed that the inclusion of fermented and enzymatically treated barley improved feed utilization efficiency, modified intestinal barrier functions, and upregulated the expression of nutrient-transport-related genes. The study suggests that fermented and enzymatically treated barley has potential as a promising alternative to corn in achieving poultry production targets.
VETERINARY SCIENCES
(2023)
Article
Agriculture, Dairy & Animal Science
Naglaa Z. Eleiwa, Ahmed A. El-Shabrawi, Doaa Ibrahim, Abdelwahab A. Abdelwarith, Elsayed M. Younis, Simon J. Davies, Mohamed M. M. Metwally, Ehsan H. Abu-Zeid
Summary: Birds, especially broiler chickens, are vulnerable to the toxic effects of imidacloprid (IMI) insecticide. This study investigated the potential protective role of curcumin (CUR) supplementation against IMI-induced detrimental effects in broilers. The results showed that CUR supplementation improved growth performance, immunity, and antioxidant status while reducing oxidative stress in broiler chickens exposed to IMI.