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https://www.readbyqxmd.com/read/28495225/detection-and-molecular-status-of-isospora-sp-from-the-domestic-pigeon-columba-livia-domestica
#1
Ryuma Matsubara, Yasuhiro Fukuda, Fumi Murakoshi, Osamu Nomura, Toru Suzuki, Chika Tada, Yutaka Nakai
The domestic pigeon, Columba livia domestica, is reared for meat production, as a pet, or for racing. Few reports have characterized the parasitic protists from the genus Isospora isolated from Columbiformes. We detected Isospora-like oocysts from C. livia reared for racing. The oocyst contained two sporocysts, and each sporocyst included four sporozoites. The sporulated oocysts (n=4) were spherical; their mean diameters were 25.6 (24.0-27.2)×24.7 (23.4-26.0) μm. Micropyles, polar granules, and oocyst residuum were absent...
May 8, 2017: Parasitology International
https://www.readbyqxmd.com/read/28417958/widespread-patterns-of-sexually-dimorphic-gene-expression-in-an-avian-hypothalamic-pituitary-gonadal-hpg-axis
#2
Matthew D MacManes, Suzanne H Austin, Andrew S Lang, April Booth, Victoria Farrar, Rebecca M Calisi
The hypothalamic-pituitary-gonadal (HPG) axis is a key biological system required for reproduction and associated sexual behaviors to occur. In the avian reproductive model of the rock dove (Columba livia), we characterized the transcript community of each tissue of the HPG axis in both sexes, thereby significantly expanding our mechanistic insight into HPG activity. We report greater sex-biased differential expression in the pituitary as compared to the hypothalamus, with multiple genes more highly expressed in the male pituitary being related to secretory function, and multiple genes more highly expressed in the female pituitary being related to reproduction, growth, and development...
April 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28316429/pseudomalaria-in-a-domestic-pigeon-a-case-report
#3
B R Maharana, Binod Kumar
Microscopic examination of thin blood smear of a domestic pigeon brought to Teaching Veterinary Clinical Complex, Junagadh, Gujarat revealed mature and immature halter shaped gametocytes of Haemoproteus columbae encircling the nucleated erythrocytes. The disease was diagnosed as acute infection of pigeon malaria more notably known as pseudomalaria. The parasitic infection was further confirmed by polymerase chain reaction assay targeting the Cytochrome b (cyt b) gene fragment amplifying 207 base pair (bp) fragment...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28316016/complete-genome-sequence-and-evolution-analysis-of-a-columbid-herpesvirus-type-1-from-feral-pigeon-in-china
#4
Ying Guo, Siwen Li, Xiao Sun, Ying He, Hongjing Zhao, Yu Wang, Panpan Zhao, Mingwei Xing
Here, we report the genome sequence of a feral pigeon alphaherpesvirus (columbid herpesvirus type 1, CoHV-1), strain HLJ, and compare it with other avian alphaherpesviruses. The CoHV-1 strain HLJ genome is 204,237 bp in length and encodes approximately 130 putative protein-coding genes. Phylogenetically, CoHV-1 complete genome resides in a monophyletic group with the falconid herpesvirus type 1 (FaHV-1) genome, distant from other alphaherpesviruses. Interestingly, the evolutionary analysis of partial genes of CoHV-1 isolated from different organisms and areas (currently accessible on GenBank) indicates that the CoHV-1 HLJ strain isolated from pigeon (Columba livia) is closely related to the strains isolated from peregrine falcon (Falco peregrinus) in Poland and owl (Bubo virginianus) in USA...
March 18, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28093116/captive-and-free-living-urban-pigeons-columba-livia-from-brazil-as-carriers-of-multidrug-resistant-pathogenic-escherichia-coli
#5
Clarissa A Borges, Renato P Maluta, Lívia G Beraldo, Marita V Cardozo, Elisabete A L Guastalli, Subhashinie Kariyawasam, Chitrita DebRoy, Fernando A Ávila
Thirty Escherichia coli isolates from captive and free-living pigeons in Brazil were characterised. Virulence-associated genes identified in pigeons included those which occur relatively frequently in avian pathogenic E. coli (APEC) from commercial poultry worldwide. Eleven of 30 E. coli isolates from pigeons, belonging mainly to B1 and B2 phylogenetic groups, had high or intermediate pathogenicity for 1-day-old chicks. The frequency of multi-drug resistant (MDR) E. coli in captive pigeons was relatively high and included one isolate positive for the extended-spectrum β-lactamase (ESBL) gene blaCTX-M-8...
January 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28024872/molecular-and-functional-characterization-of-pigeon-columba-livia-tumor-necrosis-factor-receptor-associated-factor-3
#6
Yingying Zhou, Xilong Kang, Dan Xiong, Shanshan Zhu, Huijuan Zheng, Ying Xu, Yaxin Guo, Zhiming Pan, Xinan Jiao
Tumor necrosis factor receptor-associated factor 3 (TRAF3) plays a key antiviral role by promoting type I interferon production. We cloned the pigeon TRAF3 gene (PiTRAF3) according to its predicted mRNA sequence to investigate its function. The 1704-bp full-length open reading frame encodes a 567-amino acid protein. One Ring finger, two TRAF-type Zinc fingers, one Coiled coil, and one MATH domain were inferred. RT-PCR showed that PiTRAF3 was expressed in all tissues, with relatively weak expression in the heart and liver...
December 23, 2016: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/27993101/detection-and-partial-genetic-characterisation-of-novel-avi-and-siadenoviruses-in-racing-and-fancy-pigeons-columba-livia-domestica
#7
Mónika Z Ballmann, Balázs Harrach
Up to now, only a single adenovirus (AdV) isolate seemingly specific for pigeons, hence named pigeon AdV-1 (PiAdV-1), has been characterised at DNA sequence level. In the present work, the prevalence and diversity of AdVs occurring in domestic pigeon were examined by a survey performed on randomly collected samples using a very efficient, consensus nested PCR targeting the viral DNA polymerase gene. The newly detected viruses were characterised by sequencing and phylogeny analysis. Amplification of additional genome fragments was attempted by the use of several other PCR methods aiming at the hexon gene...
December 2016: Acta Veterinaria Hungarica
https://www.readbyqxmd.com/read/27697452/identification-of-a-novel-aviadenovirus-designated-pigeon-adenovirus-2-in-domestic-pigeons-columba-livia
#8
L Teske, D Rubbenstroth, M Meixner, K Liere, H Bartels, S Rautenschlein
The young pigeon disease syndrome (YPDS) affects mainly young pigeons of less than one year of age and leads to crop stasis, vomitus, diarrhea, anorexia and occasionally death. This disease is internationally a major health problem because of its seasonal appearance during competitions such as homing pigeon races or exhibitions of ornamental birds. While the etiology of YPDS is still unclear, adenoviruses are frequently discussed as potential causative agents. Electron microscopy of feces from a YPDS outbreak revealed massive shedding of adenovirus-like particles...
January 2, 2017: Virus Research
https://www.readbyqxmd.com/read/27498962/microbacterium-faecale-sp-nov-isolated-from-the-faeces-of-columba-livia
#9
Xiu Chen, Gui-Ding Li, Qin-Yuan Li, Fang-Ji Xu, Cheng-Lin Jiang, Li Han, Xue-Shi Huang, Yi Jiang
A novel, yellow, aerobic strain, YIM 101168T, isolated from the faeces of a dove (Columba livia), was studied to determine its taxonomic position. Cells were Gram-stain-positive, short rod-shaped, oxidase-negative, catalase-positive and non-motile. The strain could grow at 7-37 °C, at pH 6-10 and in the presence of 0-13 % (w/v) NaCl. The strain had a 16S rRNA gene sequence similarity and DNA-DNA hybridization relatedness value with Microbacteriumgubbeenense NCIMB 30129T of 97.8 % and 41.5±8.7 %, respectively...
November 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27466433/molecular-cloning-characterization-and-expression-analysis-of-ghrelin-and-cholecystokinin-in-the-pigeon-columba-livia
#10
P Xie, X P Wan, Z Bu, X T Zou
Ghrelin and cholecystokinin (CCK) are multifunctional peptides. In the current study, complete sequences of ghrelin (800 bp) and CCK (739 bp) were firstly cloned in Columba livia by using rapid amplification of cDNA ends (RACE) method. The open reading frames of ghrelin (351bp) and CCK (393bp) encoded 116 amino acids and 130 amino acids, respectively. Sequence comparison indicated that pigeon ghrelin and CCK shared high identity with those reported in other avian species. Quantitative real-time PCR analysis found that ghrelin and CCK mRNAs expressed in three intestinal segments of pigeon during development...
November 1, 2016: Poultry Science
https://www.readbyqxmd.com/read/27328070/chicken-cathelicidins-as-potent-intrinsically-disordered-biocides-with-antimicrobial-activity-against-infectious-pathogens
#11
Haitham A Yacoub, Ahmed M Elazzazy, Maged M Mahmoud, Mohamed Nabih Baeshen, Omar A Al-Maghrabi, Saleh Alkarim, Ekram S Ahmed, Hussein A Almehdar, Vladimir N Uversky
This study was performed to identify the expression patterns of the cathelicidin genes in a local chicken breed and to evaluate the antimicrobial activities of the cathelicidin peptides against pathogenic bacteria. This analysis revealed that the coding regions of CATH-1, -2, and -3 genes contain 447 bp, 465 bp, and 456 bp, respectively, and encode proteins of 148, 154, 151 amino acids, respectively. The complete amino acid sequences of the cathelicidin peptides are similar to those found in Meleagris gallopavo, Phasianus colchicus, and Coturnix coturnix, and show high sequence identity to their Columba livia and Anas platyrhynchos counterparts...
December 2016: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/27180898/association-of-myf5-and-klf15-gene-polymorphisms-with-carcass-traits-in-domestic-pigeons-columba-livia
#12
Z Z Yin, X Y Dong, D J Dong, Y Z Ma
Single nucleotide polymorphisms (SNPs) in the exons of the myogenic factor 5 (MYF5) and Kruppel-like factor 15 (KLF15) genes were identified and analysed by using DNA sequencing methods in 60 female domestic pigeons (Columba livia). Five SNPs (T5067A, C5084T, C5101T, T5127A and C5154G) were detected in exon 3 of MYF5 and 6 SNPs (C1398T, C1464T, G1542A, C1929T, G1965A and A2355G) were found in exon 2 of KLF15, respectively. The analysis revealed three genotypes, in which the AA genotype was dominant and the A allele showed a dominant advantage...
October 2016: British Poultry Science
https://www.readbyqxmd.com/read/27175180/molecular-phylogeny-of-some-avian-species-using-cytochrome-b-gene-sequence-analysis
#13
A Awad, S R Khalil, Y M Abd-Elhakim
Veritable identification and differentiation of avian species is a vital step in conservative, taxonomic, forensic, legal and other ornithological interventions. Therefore, this study involved the application of molecular approach to identify some avian species i.e. Chicken (Gallus gallus), Muskovy duck (Cairina moschata), Japanese quail (Coturnix japonica), Laughing dove (Streptopelia senegalensis), and Rock pigeon (Columba livia). Genomic DNA was extracted from blood samples and partial sequence of the mitochondrial cytochrome b gene (358 bp) was amplified and sequenced using universal primers...
2015: Iranian journal of veterinary research
https://www.readbyqxmd.com/read/27175015/transcriptomic-analysis-identifies-candidate-genes-related-to-intramuscular-fat-deposition-and-fatty-acid-composition-in-the-breast-muscle-of-squabs-columba
#14
Manhong Ye, Bin Zhou, Shanshan Wei, MengMeng Ding, Xinghui Lu, Xuehao Shi, Jiatong Ding, Shengmei Yang, Wanhong Wei
Despite the fact that squab is consumed throughout the world because of its high nutritional value and appreciated sensory attributes, aspects related to its characterization, and in particular genetic issues, have rarely been studied. In this study, meat traits in terms of pH, water-holding capacity, intramuscular fat content, and fatty acid profile of the breast muscle of squabs from two meat pigeon breeds were determined. Breed-specific differences were detected in fat-related traits of intramuscular fat content and fatty acid composition...
2016: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/27107929/morphological-and-molecular-characterization-of-isospora-neochmiae-n-sp-in-a-captive-bred-red-browed-finch-neochmia-temporalis-latham-1802
#15
Rongchang Yang, Belinda Brice, Una Ryan
A new Isospora (Apicomplexa: Eimeriidae) species is described from a single red-browed finch (Neochmia temporalis) (subspecies N. temporalis temporalis), that was part of a captive population in Western Australia. Sporulated oocysts of this isolate are spherical, 18.3 (18.2-18.9) × 18.2 (18.2-18.6) μm, with a shape index (length/width) of 1.0; and a smooth and bilayered oocyst wall, 1.2 μm thick (outer layer 0.9 μm, inner 0.3 μm). A polar granule is present, but the oocyst residuum and a micropyle are absent...
July 2016: Experimental Parasitology
https://www.readbyqxmd.com/read/27080159/morphological-and-molecular-characterization-of-eimeria-labbeana-like-apicomplexa-eimeriidae-in-a-domestic-pigeon-columba-livia-domestica-gmelin-1789-in-australia
#16
Rongchang Yang, Belinda Brice, Aileen Elloit, Una Ryan
An Eimeria species is described from a domestic pigeon (Columba livia domestica). Sporulated oocysts (n = 35) were subspherical, with a smooth bi-layered oocyst wall (1.0 μm thick). Oocysts measured 20.2 × 16.1 (22.0-18.9 × 15.7-18.9) μm, oocyst length/width (L/W) ratio, 1.38. Oocyst residuum and a polar granule were present. The micropyle was absent. Sporocysts are elongate-ovoid, 13.0 × 6.1 (14.5-12.5 × 5.5-7.0) μm, sporocyst L/W ratio, 2.13 (2.0-2.2), sporocyst residuum was present, composed of numerous granules in a spherical or ovoid mass...
July 2016: Experimental Parasitology
https://www.readbyqxmd.com/read/27007521/detection-of-chlamydia-psittaci-in-feral-pigeons-columba-livia-domestica-in-slovakia-and-their-characterisation
#17
Lenka Čechová, Monika Halánová, Zuzana Kalinová, Lýdia Čisláková, Miloš Halán, Alexandra Valenčáková
INTRODUCTION AND OBJECTIVES: Chlamydia psittaci, an obligate intracellular bacterium, which is the etiologic agent of avian chlamydiosis in birds and ornithosis/psittacosis in humans, has been reported to be one of the most common pathogens found in feral pigeons worldwide, and thus constitutes a zoonotic risk. The aim of the study was to investigate pigeons in Slovakia living in areas in close proximity to humans for the presence of C. psittaci, using pharyngeal and cloacal swabs. MATERIAL AND METHODS: 122 clinically healthy pigeons from different geographical regions of Slovakia were examined for the presence of C...
2016: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/26957627/effect-of-egg-weight-on-composition-embryonic-growth-and-expression-of-amino-acid-transporter-genes-in-yolk-sac-membranes-and-small-intestines-of-the-domestic-pigeon-columba-livia
#18
M X Chen, X G Li, H C Yan, X Q Wang, C Q Gao
The objective of this study was to investigate the effect of egg weight on the composition of the egg, the growth of the embryo, and the expression of amino acid transporter genes in the yolk sac membranes and small intestines of the domestic pigeon (Columba livia). A total of 240 fertilized eggs were collected and divided into two groups based on the weight of the eggs, light (LE) and heavy (HE). The composition of 20 eggs from each group was measured, and the remaining eggs were weighed and placed in an incubator...
June 1, 2016: Poultry Science
https://www.readbyqxmd.com/read/26809976/trace-metals-melanin-based-pigmentation-and-their-interaction-influence-immune-parameters-in-feral-pigeons-columba-livia
#19
M Chatelain, J Gasparini, A Frantz
Understanding the effects of trace metals emitted by anthropogenic activities on wildlife is of great concern in urban ecology; yet, information on how they affect individuals, populations, communities and ecosystems remains scarce. In particular, trace metals may impact survival by altering the immune system response to parasites. Plumage melanin is assumed to influence the effects of trace metals on immunity owing to its ability to bind metal ions in feathers and its synthesis being coded by a pleiotropic gene...
April 2016: Ecotoxicology
https://www.readbyqxmd.com/read/26787925/growth-curves-and-age-related-changes-in-carcass-characteristics-organs-serum-parameters-and-intestinal-transporter-gene-expression-in-domestic-pigeon-columba-livia
#20
C Q Gao, J X Yang, M X Chen, H C Yan, X Q Wang
Two experiments were conducted to fit growth curves, and determine age-related changes in carcass characteristics, organs, serum biochemical parameters, and gene expression of intestinal nutrient transporters in domestic pigeon (Columba livia). In experiment 1, body weight (BW) of 30 pigeons was respectively determined at 1, 3, 7, 14, 21, 28, and 35 days old to fit growth curves and to describe the growth of pigeons. In experiment 2, eighty-four 1-day-old squabs were grouped by weight into 7 groups. On d 1, 3, 7, 14, 21, 28, and 35, twelve birds from each group were randomly selected for slaughter and post-slaughter analysis...
April 2016: Poultry Science
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