19 results on '"Barbero, R."'
Search Results
2. Maturation of critical technologies for the DEMO balance of plant systems
- Author
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Barucca, L., Hering, W., Perez Martin, S., Bubelis, E., Del Nevo, A., Di Prinzio, M., Caramello, M., D'Alessandro, A., Tarallo, A, Vallone, E., Moscato, I., Quartararo, A., D'amico, S, Giannetti, F., Lorusso, P., Narcisi, V., Ciurluini, C., Montes Pita, M.J., Sánchez, C., Rovira, A., Santana, D., Gonzales, P., Barbero, R., Zaupa, M., Szogradi, M., Normann, S., Vaananen, M., Ylatalo, J., Lewandowska, M., Malinowski, L., Martelli, E., Froio, A., Arena, P., and Tincani, A.
- Published
- 2022
- Full Text
- View/download PDF
3. Suplementação na época das águas: revisão
- Author
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RIBEIRO, A. C. C., primary and BARBERO, R. P., additional
- Published
- 2021
- Full Text
- View/download PDF
4. Avaliação visual de bovinos de corte: revisão
- Author
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RIBEIRO, A. C. C., primary and BARBERO, R. P., additional
- Published
- 2021
- Full Text
- View/download PDF
5. P257 Microbiological characterisation of methicillin-resistant Staphylococcus aureus isolates recovered from cystic fibrosis people during two Spanish multicentre studies (2013–2021)
- Author
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Maruri-Aransolo, A., primary, Barbero, R., additional, Del Campo, R., additional, Pastor, M.D., additional, Mondejar-Lopez, P., additional, Solé, A., additional, Selma, M.J., additional, Cantón, R., additional, and Caballero-Pérez, J.D.D., additional
- Published
- 2023
- Full Text
- View/download PDF
6. Nanotrap Particles Improve Nanopore Sequencing of SARS-CoV-2 and Other Respiratory Viruses
- Author
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Andersen, P, primary, Barksdale, S, additional, Barclay, RA, additional, Smith, N, additional, Fernandes, J, additional, Besse, K, additional, Goldfarb, D, additional, Barbero, R, additional, Dunlap, R, additional, Jones-Roe, T, additional, Kelly, R, additional, Miao, S, additional, Ruhunusiri, C, additional, Munns, A, additional, Mosavi, S, additional, Sanson, L, additional, Munns, D, additional, Sahoo, S, additional, Swahn, O, additional, Hull, K, additional, White, D, additional, Kolb, K, additional, Noroozi, F, additional, Seelam, J, additional, Patnaik, A, additional, and Lepene, B, additional
- Published
- 2021
- Full Text
- View/download PDF
7. Maturation of critical technologies for the DEMO balance of plant systems
- Author
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L. Barucca, W. Hering, S. Perez Martin, E. Bubelis, A. Del Nevo, M. Di Prinzio, M. Caramello, A. D'Alessandro, A Tarallo, E. Vallone, I. Moscato, A. Quartararo, S D'amico, F. Giannetti, P. Lorusso, V. Narcisi, C. Ciurluini, M.J. Montes Pita, C. Sánchez, A. Rovira, D. Santana, P. Gonzales, R. Barbero, M. Zaupa, M. Szogradi, S. Normann, M. Vaananen, J. Ylatalo, M. Lewandowska, L. Malinowski, E. Martelli, A. Froio, P. Arena, A. Tincani, Barucca, L., Hering, W., Perez Martin, S., Bubelis, E., Del Nevo, A., Di Prinzio, M., Caramello, M., D'Alessandro, A., Tarallo, A, Vallone, E., Moscato, I., Quartararo, A., D'amico, S, Giannetti, F., Lorusso, P., Narcisi, V., Ciurluini, C., Montes Pita, M.J., Sánchez, C., Rovira, A., Santana, D., Gonzales, P., Barbero, R., Zaupa, M., Szogradi, M., Normann, S., Vaananen, M., Ylatalo, J., Lewandowska, M., Malinowski, L., Martelli, E., Froio, A., Arena, P., and Tincani, A.
- Subjects
Technology ,Balance of plant ,Electric power distribution ,Mechanical Engineering ,HCPB BB ,Steam generator ,Power conversion system ,Power plants -- Design and construction ,Nuclear Energy and Engineering ,Steam-boilers ,General Materials Science ,Power-plants -- Europe ,balance of plant ,DEMO ,power conversion system ,steam generator ,WCLL BB ,ddc:600 ,Settore ING-IND/19 - Impianti Nucleari ,Civil and Structural Engineering - Abstract
The Pre-Concept Design (PCD) of the Balance of Plant (BoP) systems of the EU-DEMO power plant is described in this paper for both breeding blanket (BB) concepts under assessment, namely the Water Cooled Lithium Lead (WCLL) BB and the Helium Cooled Pebble Bed (HCPB) BB. Moreover, the results of a preliminary evaluation of a number of BoP variants are discussed. This paper outlines the steps of the BoP design development, highlighting the project objectives and the strategy for their achievement under the very challenging requirements which include, among others, the intermittent nature of the DEMO plasma heat source. The main achievements during the PCD Phase will be reported together with the development plan for the Concept Design (CD) Phase to reach a mature (feasible) BoP concept for DEMO., peer-reviewed
- Published
- 2022
8. Modulation of Antioxidant Defense in Farmed Rainbow Trout (Oncorhynchus mykiss) Fed with a Diet Supplemented by the Waste Derived from the Supercritical Fluid Extraction of Basil (Ocimum basilicum)
- Author
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Gabriele Magara, Marino Prearo, Cristina Vercelli, Raffaella Barbero, Marco Micera, Alfonso Botto, Christian Caimi, Barbara Caldaroni, Cinzia Margherita Bertea, Giuseppe Mannino, Damià Barceló, Monia Renzi, Laura Gasco, Giovanni Re, Alessandro Dondo, Antonia Concetta Elia, Paolo Pastorino, Magara, G., Prearo, M., Vercelli, C., Barbero, R., Micera, M., Botto, A., Caimi, C., Caldaroni, B., Bertea, C. M., Mannino, G., Barcelo, D., Renzi, M., Gasco, L., Re, G., Dondo, A., Elia, A. C., and Pastorino, P.
- Subjects
Polyphenol ,Antioxidants ,Circular economy ,Enzymatic activity ,Gas chromatography ,Polyphenols ,Pro-oxidants ,Proanthocyanidins ,Volatile compounds ,Physiology ,circular economy ,volatile compounds ,antioxidants ,pro-oxidants ,enzymatic activity ,gas chromatography ,proanthocyanidins ,polyphenols ,Clinical Biochemistry ,Pro-oxidant ,Cell Biology ,Biochemistry ,Proanthocyanidin ,Antioxidant ,Molecular Biology - Abstract
Phytotherapy is based on the use of plants to prevent or treat human and animal diseases. Recently, the use of essential oils and polyphenol-enriched extracts is also rapidly increasing in the aquaculture sector as a means of greater industrial and environmental sustainability. Previous studies assessed the antibacterial and antiparasitic effects of these bioactive compounds on fish. However, studies on the modulation of oxidative stress biomarkers are still scant to date. Thus, in this study, the modulation of antioxidant defense against oxidative stress exerted by fish diets supplemented with a basil supercritical extract (F1-BEO) was assessed in rainbow trout Oncorhynchus mykiss. The F1-BEO extracted with supercritical fluid extraction was added to the commercial feed flour (0.5, 1, 2, 3% w/w) and mixed with fish oil to obtain a suitable compound for pellet preparation. Fish were fed for 30 days. The levels of stress biomarkers such as superoxide dismutase, catalase, glutathione peroxidase, glutathione S-transferase, glutathione reductase, glyoxalase I, glyoxalase II, lactate dehydrogenase, glutathione and malondialdehyde showed a boost in the antioxidant pathway in fish fed with a 0.5% F1-BEO-supplemented diet. Higher F1-BEO supplementation led to a failure of activity of several enzymes and the depletion of glutathione levels. Malondialdehyde concentration suggests a sufficient oxidative stress defense against lipid peroxidation in all experimental groups, except for a 3% F1-BEO-supplemented diet (liver 168.87 ± 38.79 nmol/mg prot; kidney 146.86 ± 23.28 nmol/mg prot), compared to control (liver 127.76 ± 18.15 nmol/mg prot; kidney 98.68 ± 15.65 nmol/mg prot). Our results suggest supplementing F1-BEO in fish diets up to 0.5% to avoid potential oxidative pressure in farmed trout., This research was funded by Italian Ministry of Health, Ricerca Finalizzata, grant number GR-2013-02355796.
- Published
- 2022
9. Impact of antibiotics, corticosteroids, and microbiota on immunotherapy efficacy in patients with non-small cell lung cancer.
- Author
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Zapata-García M, Moratiel-Pellitero A, Isla D, Gálvez E, Gascón-Ruiz M, Sesma A, Barbero R, Galeano J, Del Campo R, Ocáriz M, Quílez E, Cruellas M, Remírez-Labrada A, Pardo J, Martínez-Lostao L, Domingo MP, Esteban P, Torres-Ramón I, Yubero A, Paño JR, and Lastra R
- Abstract
Lung cancer is a leading cause of morbidity and mortality globally, with its high mortality rate attributed mainly to non-small cell lung cancer (NSCLC). Although immunotherapy with immune checkpoint inhibitors (ICI) has revolutionized its treatment, patient response is highly variable and lacking predictive markers. We conducted a prospective study on 55 patients with NSCLC undergoing ICI therapy to identify predictive markers of both response and immune-related adverse events (IrAEs) in the airway microbiota. We also analyzed the clinical evolution and overall survival (OS) with respect to treatments that affect the integrity of the microbiota, such as antibiotics and corticosteroids. Our results demonstrated that respiratory microbiota differ significantly in ICI responders: they have higher alpha diversity values and lower abundance of the Firmicutes phylum and the Streptococcus genus. Employing a logistic regression model, the abundance of Gemella was the major predictor of non-ICI response, whereas Lachnoanaerobaculum was the best predictor of a positive response to ICI. The most relevant results were that antibiotic consumption is linked to a lower ICI response, and the use of corticosteroids correlated with poorer overall survival. Whereas previous studies have focused on gut microbiota, our findings highlight the importance of the respiratory microbiota in predicting the treatment response. Future research should explore microbiota modulation strategies to enhance immunotherapy outcomes. Understanding the impact of antibiotics, corticosteroids, and microbiota on NSCLC immunotherapy will help personalize treatment and improve patient outcomes., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Authors.)
- Published
- 2024
- Full Text
- View/download PDF
10. Resistome, Virulome, and Clonal Variation in Methicillin-Resistant Staphylococcus aureus (MRSA) in Healthy Swine Populations: A Cross-Sectional Study.
- Author
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Silva V, Silva A, Barbero R, Romero M, Del Campo R, Caniça M, Cordeiro R, Igrejas G, and Poeta P
- Subjects
- Animals, Swine, Cross-Sectional Studies, Microbial Sensitivity Tests, Portugal epidemiology, Whole Genome Sequencing, Virulence Factors genetics, Prevalence, Drug Resistance, Multiple, Bacterial genetics, Methicillin-Resistant Staphylococcus aureus genetics, Methicillin-Resistant Staphylococcus aureus drug effects, Methicillin-Resistant Staphylococcus aureus pathogenicity, Staphylococcal Infections veterinary, Staphylococcal Infections microbiology, Staphylococcal Infections epidemiology, Staphylococcal Infections drug therapy, Swine Diseases microbiology, Swine Diseases epidemiology, Anti-Bacterial Agents pharmacology
- Abstract
This cross-sectional study investigates the methicillin-resistant Staphylococcus aureus (MRSA): its prevalence, antimicrobial resistance, and molecular characteristics in healthy swine populations in central Portugal. A total of 213 samples were collected from pigs on twelve farms, and MRSA prevalence was assessed using selective agar plates and confirmed via molecular methods. Antimicrobial susceptibility testing and whole genome sequencing (WGS) were performed to characterize resistance profiles and genetic determinants. Among the 107 MRSA-positive samples (83.1% prevalence), fattening pigs and breeding sows exhibited notably high carriage rates. The genome of 20 isolates revealed the predominance of the ST398 clonal complex, with diverse spa types identified. Antimicrobial susceptibility testing demonstrated resistance to multiple antimicrobial agents, including penicillin, cefoxitin, and tetracycline. WGS analysis identified a diverse array of resistance genes, highlighting the genetic basis of antimicrobial resistance. Moreover, virulence gene profiling revealed the presence of genes associated with pathogenicity. These findings underscore the significant prevalence of MRSA in swine populations and emphasize the need for enhanced surveillance and control measures to mitigate zoonotic transmission risks. Implementation of prudent antimicrobial use practices and targeted intervention strategies is essential to reducing MRSA prevalence and safeguarding public health. Continued research efforts are warranted to elucidate transmission dynamics and virulence potential, ultimately ensuring food safety and public health protection.
- Published
- 2024
- Full Text
- View/download PDF
11. Reply to: Satellite artifacts modulate FireCCILT11 global burned area.
- Author
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Cardil A, Rodrigues M, Barbero R, Ramírez J, Stoof C, Silva CA, Mohan M, Gelabert P, Ortega M, and de-Miguel S
- Published
- 2024
- Full Text
- View/download PDF
12. Comparison of Nanotrap ® Microbiome A Particles, membrane filtration, and skim milk workflows for SARS-CoV-2 concentration in wastewater.
- Author
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Liu P, Guo L, Cavallo M, Cantrell C, Hilton SP, Nguyen A, Long A, Dunbar J, Barbero R, Barclay R, Sablon O 3rd, Wolfe M, Lepene B, and Moe C
- Abstract
Introduction: Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) RNA monitoring in wastewater has become an important tool for Coronavirus Disease 2019 (COVID-19) surveillance. Grab (quantitative) and passive samples (qualitative) are two distinct wastewater sampling methods. Although many viral concentration methods such as the usage of membrane filtration and skim milk are reported, these methods generally require large volumes of wastewater, expensive lab equipment, and laborious processes., Methods: The objectives of this study were to compare two workflows (Nanotrap
® Microbiome A Particles coupled with MagMax kit and membrane filtration workflows coupled with RNeasy kit) for SARS-CoV-2 recovery in grab samples and two workflows (Nanotrap® Microbiome A Particles and skim milk workflows coupled with MagMax kit) for SARS-CoV-2 recovery in Moore swab samples. The Nanotrap particle workflow was initially evaluated with and without the addition of the enhancement reagent 1 (ER1) in 10 mL wastewater. RT-qPCR targeting the nucleocapsid protein was used for detecting SARS-CoV-2 RNA., Results: Adding ER1 to wastewater prior to viral concentration significantly improved viral concentration results ( P < 0.0001) in 10 mL grab and swab samples processed by automated or manual Nanotrap workflows. SARS-CoV-2 concentrations in 10 mL grab and Moore swab samples with ER1 processed by the automated workflow as a whole showed significantly higher ( P < 0.001) results than 150 mL grab samples using the membrane filtration workflow and 250 mL swab samples using the skim milk workflow, respectively. Spiking known genome copies (GC) of inactivated SARS-CoV-2 into 10 mL wastewater indicated that the limit of detection of the automated Nanotrap workflow was ~11.5 GC/mL using the RT-qPCR and 115 GC/mL using the digital PCR methods., Discussion: These results suggest that Nanotrap workflows could substitute the traditional membrane filtration and skim milk workflows for viral concentration without compromising the assay sensitivity. The manual workflow can be used in resource-limited areas, and the automated workflow is appropriate for large-scale COVID-19 wastewater-based surveillance., Competing Interests: RBarb, BL, RBarc, and CC were employed by Ceres Nanosciences, Inc. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Liu, Guo, Cavallo, Cantrell, Hilton, Nguyen, Long, Dunbar, Barbero, Barclay, Sablon, Wolfe, Lepene and Moe.)- Published
- 2023
- Full Text
- View/download PDF
13. Climate teleconnections modulate global burned area.
- Author
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Cardil A, Rodrigues M, Tapia M, Barbero R, Ramírez J, Stoof CR, Silva CA, Mohan M, and de-Miguel S
- Subjects
- Ecosystem, Weather, Biomass, Climate Change, Climate, Fires
- Abstract
Climate teleconnections (CT) remotely influence weather conditions in many regions on Earth, entailing changes in primary drivers of fire activity such as vegetation biomass accumulation and moisture. We reveal significant relationships between the main global CTs and burned area that vary across and within continents and biomes according to both synchronous and lagged signals, and marked regional patterns. Overall, CTs modulate 52.9% of global burned area, the Tropical North Atlantic mode being the most relevant CT. Here, we summarized the CT-fire relationships into a set of six global CT domains that are discussed by continent, considering the underlying mechanisms relating weather patterns and vegetation types with burned area across the different world's biomes. Our findings highlight the regional CT-fire relationships worldwide, aiming to further support fire management and policy-making., (© 2023. The Author(s).)
- Published
- 2023
- Full Text
- View/download PDF
14. Improved Detection of Herpesviruses from Diluted Vitreous Specimens Using Hydrogel Particles.
- Author
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Belanger NL, Barbero R, Barclay R, Lepene B, Sobrin L, and Bispo PJM
- Abstract
Infectious uveitis is a sight-threatening infection commonly caused by herpesviruses. Vitreous humor is often collected for molecular confirmation of the causative agent during vitrectomy and mixed in large volumes of buffered saline, diluting the pathogen load. Here, we explore affinity-capture hydrogel particles (Nanotrap
® ) to concentrate low abundant herpesviruses from diluted vitreous. Simulated samples were prepared using porcine vitreous spiked with HSV-1, HSV-2, VZV and CMV at 105 copies/mL. Pure undiluted samples were used to test capturing capability of three custom Nanotrap particles (red, white and blue) in a vitreous matrix. We found that all particles demonstrated affinity to the herpesviruses, with the Red Particles having both good capture capability and ease of handling for all herpesviruses. To mimic diluted vitrectomy specimens, simulated-infected vitreous were then serially diluted in 7 mL TE buffer. Diluted samples were subjected to an enrichment protocol using the Nanotrap Red particles. Sensitivity of pathogen detection by qPCR in diluted vitreous increased anywhere between 2.3 to 26.5 times compared to non-enriched specimens. This resulted in a 10-fold increase in the limit of detection for HSV-1, HSV-2 and VZV. These data demonstrated that Nanotrap particles can capture and concentrate HSV-1, HSV-2, VZV and CMV in a vitreous matrix.- Published
- 2022
- Full Text
- View/download PDF
15. Development of Atypical Reading at Ages 5 to 9 Years and Processing of Speech Envelope Modulations in the Brain.
- Author
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Granados Barbero R, Ghesquière P, and Wouters J
- Abstract
Different studies have suggested that during speech processing readers with dyslexia present atypical levels of neural entrainment as well as atypical functional hemispherical asymmetries in comparison with typical readers. In this study, we evaluated these differences in children and the variation with age before and after starting with formal reading instruction. Synchronized neural auditory processing activity was quantified based on auditory steady-state responses (ASSRs) from EEG recordings. The stimulation was modulated at syllabic and phonemic fluctuation rates present in speech. We measured the brain activation patterns and the hemispherical asymmetries in children at three age points (5, 7, and 9 years old). Despite the well-known heterogeneity during developmental stages, especially in children and in dyslexia, we could extract meaningful common oscillatory patterns. The analyses included (1) the estimations of source localization, (2) hemispherical preferences using a laterality index, measures of neural entrainment, (3) signal-to-noise ratios (SNRs), and (4) connectivity using phase coherence measures. In this longitudinal study, we confirmed that the existence of atypical levels of neural entrainment and connectivity already exists at pre-reading stages. Overall, these measures reflected a lower ability of the dyslectic brain to synchronize with syllabic rate stimulation. In addition, our findings reinforced the hypothesis of a later maturation of the processing of beta rhythms in dyslexia. This investigation emphasizes the importance of longitudinal studies in dyslexia, especially in children, where neural oscillatory patterns as well as differences between typical and atypical developing children can vary in the span of a year., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Granados Barbero, Ghesquière and Wouters.)
- Published
- 2022
- Full Text
- View/download PDF
16. Impact of Disaster Research on the Development of Early Career Researchers: Lessons Learned from the Wastewater Monitoring Pandemic Response Efforts.
- Author
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Delgado Vela J, McClary-Gutierrez JS, Al-Faliti M, Allan V, Arts P, Barbero R, Bell C, D'Souza N, Bakker K, Kaya D, Gonzalez R, Harrison K, Kannoly S, Keenum I, Li L, Pecson B, Philo SE, Schneider R, Schussman MK, Shrestha A, Stadler LB, Wigginton KR, Boehm A, Halden RU, and Bibby K
- Subjects
- Wastewater, Disasters, Pandemics
- Published
- 2022
- Full Text
- View/download PDF
17. Modulation of Antioxidant Defense in Farmed Rainbow Trout ( Oncorhynchus mykiss ) Fed with a Diet Supplemented by the Waste Derived from the Supercritical Fluid Extraction of Basil ( Ocimum basilicum ).
- Author
-
Magara G, Prearo M, Vercelli C, Barbero R, Micera M, Botto A, Caimi C, Caldaroni B, Bertea CM, Mannino G, Barceló D, Renzi M, Gasco L, Re G, Dondo A, Elia AC, and Pastorino P
- Abstract
Phytotherapy is based on the use of plants to prevent or treat human and animal diseases. Recently, the use of essential oils and polyphenol-enriched extracts is also rapidly increasing in the aquaculture sector as a means of greater industrial and environmental sustainability. Previous studies assessed the antibacterial and antiparasitic effects of these bioactive compounds on fish. However, studies on the modulation of oxidative stress biomarkers are still scant to date. Thus, in this study, the modulation of antioxidant defense against oxidative stress exerted by fish diets supplemented with a basil supercritical extract (F1-BEO) was assessed in rainbow trout Oncorhynchus mykiss . The F1-BEO extracted with supercritical fluid extraction was added to the commercial feed flour (0.5, 1, 2, 3% w / w ) and mixed with fish oil to obtain a suitable compound for pellet preparation. Fish were fed for 30 days. The levels of stress biomarkers such as superoxide dismutase, catalase, glutathione peroxidase, glutathione S-transferase, glutathione reductase, glyoxalase I, glyoxalase II, lactate dehydrogenase, glutathione and malondialdehyde showed a boost in the antioxidant pathway in fish fed with a 0.5% F1-BEO-supplemented diet. Higher F1-BEO supplementation led to a failure of activity of several enzymes and the depletion of glutathione levels. Malondialdehyde concentration suggests a sufficient oxidative stress defense against lipid peroxidation in all experimental groups, except for a 3% F1-BEO-supplemented diet (liver 168.87 ± 38.79 nmol/mg prot; kidney 146.86 ± 23.28 nmol/mg prot), compared to control (liver 127.76 ± 18.15 nmol/mg prot; kidney 98.68 ± 15.65 nmol/mg prot). Our results suggest supplementing F1-BEO in fish diets up to 0.5% to avoid potential oxidative pressure in farmed trout.
- Published
- 2022
- Full Text
- View/download PDF
18. Atypical processing in neural source analysis of speech envelope modulations in adolescents with dyslexia.
- Author
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Granados Barbero R, de Vos A, Ghesquière P, and Wouters J
- Subjects
- Acoustic Stimulation, Adolescent, Brain, Humans, Speech, Auditory Cortex, Dyslexia, Speech Perception
- Abstract
Different studies have suggested that language and developmental disorders such as dyslexia are associated with a disturbance of auditory entrainment and of the functional hemispheric asymmetries during speech processing. These disorders typically result from an issue in the phonological component of language that causes problems to represent and manipulate the phonological structure of words at the syllable and/or phoneme level. We used Auditory Steady-State Responses (ASSRs) in EEG recordings to investigate the brain activation and hemisphere asymmetry of theta, alpha, beta and low-gamma range oscillations in typical readers and readers with dyslexia. The aim was to analyse whether the group differences found in previous electrode level studies were caused by a different source activation pattern or conversely was an effect that could be found on the active brain sources. We could not find differences in the brain locations of the main active brain sources. However, we observed differences in the extracted waveforms. The group average of the first DSS component of all signal-to-noise ratios of ASSR at source level was higher than the group averages at the electrode level. These analyses included a lower alpha synchronisation in adolescents with dyslexia and the possibility of compensatory mechanisms in theta, beta and low-gamma frequency bands. The main brain auditory sources were located in cortical regions around the auditory cortex. Thus, the differences observed in auditory EEG experiments would, according to our findings, have their origin in the intrinsic oscillatory mechanisms of the brain cortical sources related to speech perception., (© 2021 Federation of European Neuroscience Societies and John Wiley & Sons Ltd.)
- Published
- 2021
- Full Text
- View/download PDF
19. Black soldier fly and yellow mealworm live larvae for broiler chickens: Effects on bird performance and health status.
- Author
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Bellezza Oddon S, Biasato I, Imarisio A, Pipan M, Dekleva D, Colombino E, Capucchio MT, Meneguz M, Bergagna S, Barbero R, Gariglio M, Dabbou S, Fiorilla E, Gasco L, and Schiavone A
- Subjects
- Animal Feed analysis, Animals, Chickens, Diet veterinary, Health Status, Larva, Male, Diptera, Tenebrio
- Abstract
The commercial broiler chicken strains are the result of successful selection programmes. Most of the problems related to welfare arise from the high growth rate and body weight. The use of environmental enrichments in intensive farming could have a positive effect on birds by increasing animal welfare. The aim of the study was to evaluate the effects of Hermetia illucens (HI) and Tenebrio molitor (TM) live larvae in the diets of broiler chickens on growth performance, carcass yield and health status. A total of 180 four-day-old male broiler chickens (Ross 308) were randomly allotted to 18 pens. Each pen was assigned to one of the three dietary treatments (6 replicates/treatment, 10 birds/replicate) as follows: (i) control diet (C): commercial feed (two feeding phases: starter [4-11 days] and grower [12-38 days]), (ii) HI: C + 5% of the expected daily feed intake (DFI) HI live larvae (calculated on dry matter [DM]) and (iii) TM: C + 5% of DFI TM live larvae (DM). At 39 days of age, birds were slaughtered. Growth performance parameters were overall not affected by dietary treatments, except for the grower phase feed conversion ratio (FCR) and the overall FCR being better in the TM broilers than the others (p < 0.01). No differences were observed for slaughtering performance and haematological and serum parameters, except for the spleen relative weight being higher (p < 0.01) in the birds administered with larvae when compared to the C group. Gut morphometric indexes and histopathological alterations were not influenced by insect larvae administration. In conclusion, the administration in limited quantities of HI and TM live larvae as environmental enrichment has no negative effects on broiler chicken growth performance and health status. A behavioural study could confirm that live insect larvae represent a novel natural environmental enrichment in broiler farming., (© 2021 The Authors. Journal of Animal Physiology and Animal Nutrition published by Wiley-VCH GmbH.)
- Published
- 2021
- Full Text
- View/download PDF
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