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[PMID]:29462137
[Au] Autor:Moore AF; Cassone VM; Alloway KD; Bartell PA
[Ad] Endereço:Department of Biology, University of Kentucky, Lexington, Kentucky, United States of America.
[Ti] Título:The premammillary nucleus of the hypothalamus is not necessary for photoperiodic timekeeping in female turkeys (Meleagris gallopavo).
[So] Source:PLoS One;13(2):e0190274, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In birds, seasonal reproduction is regulated by day length, with long days in the spring activating the hypothalamic-pituitary-gonadal axis and reproductive behaviors. The photoreceptors mediating this process remain unknown, but recently, the premammillary nucleus (PMM) of the hypothalamus has been implicated as the site of photoperiodic signaling in turkeys. We performed electrolytic lesions of the PMM to elucidate its role in the photoactivation and maintenance of egg production in female turkeys. Our results show that ablation of the PMM does not alter the normal lay cycle. No differences were found between lesioned birds and sham controls in the latency to lay following photostimulation, nor in subsequent egg production over a period of 29 weeks. No differences in the incidence of gonadal regression were found, indicating that the PMM is not essential for the termination of breeding. We conclude that any role of the PMM in photoperiodic regulation, if it exists, is redundant with other components of the system.
[Mh] Termos MeSH primário: Hipotálamo/fisiologia
Fotoperíodo
Perus/fisiologia
[Mh] Termos MeSH secundário: Animais
Feminino
Óvulo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180221
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190274


  2 / 9418 MEDLINE  
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[PMID]:28456020
[Au] Autor:Lee DH; Torchetti MK; Killian ML; Swayne DE
[Ad] Endereço:Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, Agricultural Research Service, U.S. Department of Agriculture, Athens, GA, USA.
[Ti] Título:Deep sequencing of H7N8 avian influenza viruses from surveillance zone supports H7N8 high pathogenicity avian influenza was limited to a single outbreak farm in Indiana during 2016.
[So] Source:Virology;507:216-219, 2017 07.
[Is] ISSN:1096-0341
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In mid-January 2016, an outbreak of H7N8 high-pathogenicity avian influenza virus (HPAIV) in commercial turkeys occurred in Indiana. Surveillance within the 10km control zone identified H7N8 low-pathogenicity avian influenza virus (LPAIV) in nine surrounding turkey flocks but no other HPAIV-affected premises. We sequenced four of the H7N8 HPAIV isolated from the single farm and nine LPAIV identified during control zone surveillance. Evaluation included phylogenetic network analysis indicating close relatedness across the HPAIV and LPAIV, and that the progenitor H7N8 LPAIV spread among the affected turkey farms in Indiana, followed by spontaneous mutation to HPAIV on a single premise through acquisition of three basic amino acids at the hemagglutinin cleavage site. Deep sequencing of the available viruses failed to identify subpopulations in either the HPAIV or LPAIV suggesting mutation to HPAIV likely occurred on a single farm and the HPAIV did not spread to epidemiologically linked LPAIV-affected farms.
[Mh] Termos MeSH primário: Vírus da Influenza A/isolamento & purificação
Vírus da Influenza A/patogenicidade
Influenza Aviária/virologia
Doenças das Aves Domésticas/virologia
[Mh] Termos MeSH secundário: Animais
Galinhas/virologia
Surtos de Doenças
Sequenciamento de Nucleotídeos em Larga Escala
Indiana/epidemiologia
Vírus da Influenza A/classificação
Vírus da Influenza A/genética
Influenza Aviária/epidemiologia
Filogenia
Doenças das Aves Domésticas/epidemiologia
Perus/virologia
Virulência
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:171220
[Lr] Data última revisão:
171220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170430
[St] Status:MEDLINE


  3 / 9418 MEDLINE  
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[PMID]:28934330
[Au] Autor:Dalton HA; Wood BJ; Widowski TM; Guerin MT; Torrey S
[Ad] Endereço:Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada.
[Ti] Título:An analysis of beak shape variation in two ages of domestic turkeys (Meleagris gallopavo) using landmark-based geometric morphometrics.
[So] Source:PLoS One;12(9):e0185159, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The objective of this study was to assess beak shape variation in domestic turkeys (Meleagris gallopavo) and determine the effects of age, sex, and beak size on beak shape variation using geometric morphometrics. Dorsal and right lateral images were taken of 2442 turkeys at 6 and 18.5 weeks of age. Landmarks were digitized in tpsDig in three analyses of the dorsal upper mandible, lateral upper mandible, and lateral lower mandible shape of each turkey at both ages. The coordinate data were then subjected to a principal components analysis (PCA), multivariate regression, and a canonical variates analysis (CVA) with a Procrustes ANOVA in MorphoJ. For the dorsal images, three principal components (PCs) showed beak shape variation ranged from long, narrow, and pointed to short, wide, and blunt upper mandibles at both ages (6 weeks: 95.36%, 18.5 weeks: 92.21%). Three PCs showed the lateral upper mandible shape variation ranged from long, wide beaks with long, curved beak tips to short, narrow beaks with short, pointed beak tips at both ages (6 weeks: 94.91%, 18.5 weeks: 94.33%). Three PCs also explained 97.80% (6 weeks) and 97.11% (18.5 weeks) of the lateral lower mandible shape variation ranging from wide and round to narrow and thin lower mandibles with superior/inferior beak tip shifts. Beak size accounted for varying proportions of the beak shape variation (0.96-54.76%; P < 0.0001) in the three analyses of each age group. For all the analyses, the CVA showed sexual dimorphism in beak shape (P < 0.0001) with female upper mandibles appearing wider and blunter dorsally with long, curved beak tips laterally. Whereas male turkey upper mandibles had a narrow, pointed dorsal appearance and short, pointed beak tips laterally. Future applications of beak shape variability could have a genetic and welfare value by incorporating beak shape variation to select for specific turkey beak phenotypes as an alternative to beak treatment.
[Mh] Termos MeSH primário: Bico/anatomia & histologia
Perus/anatomia & histologia
[Mh] Termos MeSH secundário: Animais
Feminino
Masculino
Mandíbula/anatomia & histologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171024
[Lr] Data última revisão:
171024
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170922
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185159


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[PMID]:28934313
[Au] Autor:Dolka B; Chrobak-Chmiel D; Czopowicz M; Szeleszczuk P
[Ad] Endereço:Department of Pathology and Veterinary Diagnostics, Faculty of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Warsaw, Poland.
[Ti] Título:Characterization of pathogenic Enterococcus cecorum from different poultry groups: Broiler chickens, layers, turkeys, and waterfowl.
[So] Source:PLoS One;12(9):e0185199, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Enterococcus cecorum (EC) is known as a commensal in the intestines of mammals and birds. However, it has been described as an emerging pathogen in poultry industry worldwide. The aim of this study was to analyze and compare EC isolated from clinical material collected from poultry groups with different production purposes. The genetic diversity among pathogenic EC in relation to each specific poultry type was examined. In total, 148 isolates from independent infection outbreaks (2011-2016) were used: 76 broiler chickens (CB), 37 broiler breeders (BB), 23 layers (CL), 7 waterfowl (W) and 5 turkey (T) flocks (1 isolate/1 flock). We provided age ranges at diagnosis of EC-infection for 5 poultry groups. Isolates obtained from CB were significantly more frequently retrieved from bone marrow, joints, spine, and contrary to BB, CL less frequently retrieved from respiratory system. The study showed differences between EC of various poultry types in relation to 10/32 (31.3%) biochemical parameters. EC isolates from CB were significantly more often positive for ßGAL, ßNAG, MLZ, and less often positive for PAL and ßMAN than isolates from other poultry types. However, BB and W isolates showed higher ability to metabolise mannitol than CB, CL, and T. CB isolates showed lower ability to survive at 60°C. Only chicken EC-isolates harbored virulence genes: CB (8.1%) > BB (3.4%) > CL (2%). No specific pulsotype of EC was associated with a specific poultry. One or several various (up to 6) genetic types of EC may be involved in outbreaks in CB flocks within one year in one region. Outbreaks reported in following years in the same region were usually caused by a distinct set of EC-genetic types. PFGE results indicated at the genetic heterogeneity among pathogenic isolates involved in outbreaks in relation to each poultry type. To our best knowledge, this is the first study which provides a comparison between clinical EC from 5 poultry groups. The study provides a new insight into EC as pathogen of different bird species. The obtained data may be useful in further studies on EC-infections more focused on a specific type of poultry.
[Mh] Termos MeSH primário: Enterococcus/fisiologia
Aves Domésticas/microbiologia
[Mh] Termos MeSH secundário: Animais
Anseriformes/microbiologia
Proteínas de Bactérias/genética
Galinhas/microbiologia
Enterococcus/classificação
Enterococcus/genética
Variação Genética
Especificidade de Órgãos
Fenótipo
Especificidade da Espécie
Perus/microbiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bacterial Proteins)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171024
[Lr] Data última revisão:
171024
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170922
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185199


  5 / 9418 MEDLINE  
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[PMID]:28910392
[Au] Autor:Ortega MT; Foote DJ; Nees N; Erdmann JC; Bangs CD; Rosenfeld CS
[Ad] Endereço:Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America.
[Ti] Título:Karyotype analysis and sex determination in Australian Brush-turkeys (Alectura lathami).
[So] Source:PLoS One;12(9):e0185014, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Sexual differentiation across taxa may be due to genetic sex determination (GSD) and/or temperature sex determination (TSD). In many mammals, males are heterogametic (XY); whereas females are homogametic (XX). In most birds, the opposite is the case with females being heterogametic (ZW) and males the homogametic sex (ZZ). Many reptile species lack sex chromosomes, and instead, sexual differentiation is influenced by temperature with specific temperatures promoting males or females varying across species possessing this form of sexual differentiation, although TSD has recently been shown to override GSD in Australian central beaded dragons (Pogona vitticeps). There has been speculation that Australian Brush-turkeys (Alectura lathami) exhibit TSD alone and/or in combination with GSD. Thus, we sought to determine if this species possesses sex chromosomes. Blood was collected from one sexually mature female and two sexually mature males residing at Sylvan Heights Bird Park (SHBP) and shipped for karyotype analysis. Karyotype analysis revealed that contrary to speculation, Australian Brush-turkeys possess the classic avian ZW/ZZ sex chromosomes. It remains a possibility that a biased primary sex ratio of Australian Brush-turkeys might be influenced by maternal condition prior to ovulation that result in her laying predominantly Z- or W-bearing eggs and/or sex-biased mortality due to higher sensitivity of one sex in environmental conditions. A better understanding of how maternal and extrinsic factors might differentially modulate ovulation of Z- or W-bearing eggs and hatching of developing chicks possessing ZW or ZZ sex chromosomes could be essential in conservation strategies used to save endangered members of Megapodiidae.
[Mh] Termos MeSH primário: Cariotipagem/métodos
Cromossomos Sexuais/genética
Perus/genética
[Mh] Termos MeSH secundário: Animais
Feminino
Masculino
Processos de Determinação Sexual
Diferenciação Sexual
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171012
[Lr] Data última revisão:
171012
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170915
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185014


  6 / 9418 MEDLINE  
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[PMID]:28865218
[Au] Autor:Jasiecka-Mikolajczyk A; Jaroszewski JJ
[Ad] Endereço:.
[Ti] Título:Determination of tigecycline in turkey plasma by LC-MS/MS: validation and application in a pharmacokinetic study.
[So] Source:Pol J Vet Sci;20(2):241-249, 2017 Mar 01.
[Is] ISSN:1505-1773
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Tigecycline (TIG), a novel glycylcycline antibiotic, plays an important role in the management of complicated skin and intra-abdominal infections. The available data lack any description of a method for determination of TIG in avian plasma. In our study, a selective, accurate and reversed-phase high performance liquid chromatography-tandem mass spectrometry method was developed for the determination of TIG in turkey plasma. Sample preparation was based on protein precipitation and liquid-liquid extraction using 1,2-dichloroethane. Chromatographic separation of TIG and minocycline (internal standard, IS) was achieved on an Atlantis T3 column (150 mm × 3.0 mm, 3.0 µm) using gradient elution. The selected reaction monitoring transitions were performed at 293.60 m/z → 257.10 m/z for TIG and 458.00 m/z → 441.20 m/z for IS. The developed method was validated in terms of specificity, selectivity, linearity, lowest limit of quantification, limit of detection, precision, accuracy, matrix effect, carry-over effect, extraction recovery and stability. All parameters of the method submitted to validation met the acceptance criteria. The assay was linear over the concentration range of 0.01-100 µg/ml. This validated method was successfully applied to a TIG pharmacokinetic study in turkey after intravenous and oral administration at a dose of 10 mg/kg at various time-points.
[Mh] Termos MeSH primário: Cromatografia Líquida/métodos
Minociclina/análogos & derivados
Espectrometria de Massas em Tandem/métodos
Perus/sangue
[Mh] Termos MeSH secundário: Animais
Antibacterianos/sangue
Antibacterianos/farmacocinética
Limite de Detecção
Minociclina/sangue
Minociclina/farmacocinética
Reprodutibilidade dos Testes
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 70JE2N95KR (tigecycline); FYY3R43WGO (Minocycline)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171106
[Lr] Data última revisão:
171106
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170903
[St] Status:MEDLINE


  7 / 9418 MEDLINE  
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[PMID]:28829595
[Au] Autor:Wu H; Yin J; Zhang J; Richards MP
[Ad] Endereço:National Center of Meat Quality, Safety Control, Jiangsu Innovation Center of Meat Production, Processing, College of Food Science, Technology, Nanjing Agricultural University , Nanjing 210095, P. R. China.
[Ti] Título:Factors Affecting Lipid Oxidation Due to Pig and Turkey Hemolysate.
[So] Source:J Agric Food Chem;65(36):8011-8017, 2017 Sep 13.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Turkey hemolysate promoted lipid oxidation in washed muscle more effectively than pig hemolysate, which was partly attributed to the greater ability of H O that formed during auto-oxidation to oxidize the avian hemoglobin (Hb). Turkey and pig hemolysate (2.5 µM Hb) exposed to 10 µM H O oxidized to 48% and 4% metHb, respectively. Catalase activity, which converts H O to water, was elevated in the pig hemolysate. The larger difference in Hb oxidation when comparing turkey and pig hemolysate in washed muscle (relative to their auto-oxidation rates) suggested that lipid oxidation products facilitated formation of metHb. Turkey metHb released hemin more readily than pig metHb, which coincided with turkey metHb promoting lipid oxidation more effectively than pig metHb. Ferryl Hb was not detected during storage of turkey or pig hemolysate in washed muscle, which suggested a minor role for hypervalent forms of Hb in the oxidation of the lipids.
[Mh] Termos MeSH primário: Lipídeos/química
Músculos/química
[Mh] Termos MeSH secundário: Animais
Hemina/química
Hemoglobinas/química
Hemólise
Peróxido de Hidrogênio/química
Carne/análise
Mioglobina/química
Oxirredução
Suínos
Perus
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Hemoglobins); 0 (Lipids); 0 (Myoglobin); 743LRP9S7N (Hemin); BBX060AN9V (Hydrogen Peroxide)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170925
[Lr] Data última revisão:
170925
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170823
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.7b02764


  8 / 9418 MEDLINE  
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[PMID]:28807213
[Au] Autor:Kadar A; Thoreson AR; Reisdorf RL; Amadio PC; Moran SL; Zhao C
[Ad] Endereço:Department of Orthopedic Surgery, Orthopedic Biomechanics Laboratory, Mayo Clinic, Rochester, Minnesota; Division of Orthopaedic Surgery, Department of Orthopedic Surgery, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
[Ti] Título:Turkey model for flexor tendon research: in vitro comparison of human, canine, turkey, and chicken tendons.
[So] Source:J Surg Res;216:46-55, 2017 Aug.
[Is] ISSN:1095-8673
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Flexor tendon injuries are one of the most common hand injuries and remain clinically challenging for functional restoration. Canine and chicken have been the most commonly used animal models for flexor tendon-related research but possess several disadvantages. The purpose of this study was to explore a potential turkey model for flexor tendon research. METHODS: The third digit from human cadaveric hands, canine forepaws, turkey foot, and chicken foot were used for this study. Six digits in each of four species were studied in detail, comparing anatomy of the flexor apparatus, joint range of motion tendon excursion, tendon cross-sectional area, work of flexion, gliding resistance at the level of the A2 pulley, modulus of elasticity, suture retention strength, and histology across species. RESULTS: Anatomically, the third digit in the four species displayed structural similarities; however, the tendon cross-sectional area of the turkey and human were similar and larger than canine and chicken. Furthermore, the turkey digit resembles the human's finger with the lack of webbing between digits, similar vascularization, tendon excursion, work of flexion, gliding resistance, mechanical properties, and suture holding strength. More importantly, human and turkey tendons were most similar in histological appearance. CONCLUSIONS: Turkey flexor tendons have many properties that are comparable to human flexor tendons which would provide a clinically relevant, economical, nonhuman companion large animal model for flexor tendon research.
[Mh] Termos MeSH primário: Galinhas/anatomia & histologia
Cães/anatomia & histologia
Modelos Animais
Tendões/anatomia & histologia
Perus/anatomia & histologia
[Mh] Termos MeSH secundário: Animais
Galinhas/fisiologia
Galinhas/cirurgia
Cães/fisiologia
Cães/cirurgia
Traumatismos da Mão/cirurgia
Seres Humanos
Técnicas In Vitro
Traumatismos dos Tendões/cirurgia
Tendões/fisiologia
Tendões/cirurgia
Perus/fisiologia
Perus/cirurgia
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171003
[Lr] Data última revisão:
171003
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170816
[St] Status:MEDLINE


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[PMID]:28796824
[Au] Autor:Shehata HR; Li J; Chen S; Redda H; Cheng S; Tabujara N; Li H; Warriner K; Hanner R
[Ad] Endereço:Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada.
[Ti] Título:Droplet digital polymerase chain reaction (ddPCR) assays integrated with an internal control for quantification of bovine, porcine, chicken and turkey species in food and feed.
[So] Source:PLoS One;12(8):e0182872, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Food adulteration and feed contamination are significant issues in the food/feed industry, especially for meat products. Reliable techniques are needed to monitor these issues. Droplet Digital PCR (ddPCR) assays were developed and evaluated for detection and quantification of bovine, porcine, chicken and turkey DNA in food and feed samples. The ddPCR methods were designed based on mitochondrial DNA sequences and integrated with an artificial recombinant plasmid DNA to control variabilities in PCR procedures. The specificity of the ddPCR assays was confirmed by testing both target species and additional 18 non-target species. Linear regression established a detection range between 79 and 33200 copies of the target molecule from 0.26 to 176 pg of fresh animal tissue DNA with a coefficient of determination (R2) of 0.997-0.999. The quantification ranges of the methods for testing fortified heat-processed food and feed samples were 0.05-3.0% (wt/wt) for the bovine and turkey targets, and 0.01-1.0% (wt/wt) for pork and chicken targets. Our methods demonstrated acceptable repeatability and reproducibility for the analytical process for food and feed samples. Internal validation of the PCR process was monitored using a control chart for 74 consecutive ddPCR runs for quantifying bovine DNA. A matrix effect was observed while establishing calibration curves with the matrix type under testing, and the inclusion of an internal control in DNA extraction provides a useful means to overcome this effect. DNA degradation caused by heating, sonication or Taq I restriction enzyme digestion was found to reduce ddPCR readings by as much as 4.5 fold. The results illustrated the applicability of the methods to quantify meat species in food and feed samples without the need for a standard curve, and to potentially support enforcement activities for food authentication and feed control. Standard reference materials matching typical manufacturing processes are needed for future validation of ddPCR assays for absolute quantification of meat species.
[Mh] Termos MeSH primário: Ração Animal/análise
DNA Mitocondrial/análise
Contaminação de Alimentos/análise
Produtos da Carne/análise
Reação em Cadeia da Polimerase/métodos
[Mh] Termos MeSH secundário: Animais
Bovinos
Galinhas
Suínos
Perus
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Mitochondrial)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171009
[Lr] Data última revisão:
171009
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170811
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0182872


  10 / 9418 MEDLINE  
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[PMID]:28665731
[Au] Autor:Mulatti P; Zecchin B; Monne I; Vieira JT; Dorotea T; Terregino C; Lorenzetto M; Piccolomini LL; Santi A; Massi P; Bonfanti L; Marangon S
[Ad] Endereço:A Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Padua, Italy.
[Ti] Título:H7N7 Highly Pathogenic Avian Influenza in Poultry Farms in Italy in 2016.
[So] Source:Avian Dis;61(2):261-266, 2017 Jun.
[Is] ISSN:1938-4351
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:After the H7N7 highly pathogenic (HP) avian influenza (AI) outbreak in 2013, and a single case of H5N8 HPAI in 2014, in April 2016, a H7N7 HPAI virus was detected in northeastern Italy. The case occurred in an organic free-range laying hen farm located in proximity with one of the highest densely populated poultry areas (DPPAs) in Italy. Control measures provided by the Council of the European Union in directive 2005/94/CE were promptly applied, and enhanced surveillance activities were implemented in the DPPAs. On May 16, 2016, a second case was confirmed in a fattening turkey farm within the protection zone of the previous outbreak. Following an epidemiologic inquiry, another turkey farm was considered at risk of transmission and was subjected to preemptive culling. Epidemiologic data and phylogenetic analyses indicated that the virus was likely introduced from wild birds as a low pathogenicity AI strain, through direct contact. The rapid containment of the outbreak proves the level of preparedness of the veterinary public health sector in Italy. Nevertheless, the recurrent introductions from wild birds indicate the need of improving both the biosecurity levels in the DPPA and the surveillance activities in wild birds to quickly detect the presence of AI in the territory.
[Mh] Termos MeSH primário: Vírus da Influenza A Subtipo H7N7/isolamento & purificação
Influenza Aviária/virologia
Doenças das Aves Domésticas/virologia
[Mh] Termos MeSH secundário: Animais
Animais Selvagens/virologia
Galinhas/crescimento & desenvolvimento
Galinhas/virologia
Surtos de Doenças
Fazendas
Vírus da Influenza A Subtipo H7N7/classificação
Vírus da Influenza A Subtipo H7N7/genética
Vírus da Influenza A Subtipo H7N7/patogenicidade
Influenza Aviária/epidemiologia
Itália/epidemiologia
Filogenia
Doenças das Aves Domésticas/epidemiologia
Perus/crescimento & desenvolvimento
Perus/virologia
Virulência
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170823
[Lr] Data última revisão:
170823
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170701
[St] Status:MEDLINE
[do] DOI:10.1637/11540-112516-Case.1



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