We evaluated the occurrence of three Campylobacter species--C. jejuni, C. coli, and C. lari--from 333 wild bird fecal samples collected at Tri-State Bird Rescue and Research in Newark, Delaware, in 2008. Using multiplex polymerase chain reaction, we detected C. jejuni from six avian families with an overall prevalence rate of 7.2%. We did not detect any other Campylobacter species. Campylobacter jejuni prevalence ranged widely between different avian families with crows (Corvidae) and gulls (Laridae) having the highest prevalence rates (23% and 25%, respectively).
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http://dx.doi.org/10.7589/0090-3558-47.3.750 | DOI Listing |
Nest sharing by birds, or the phenomenon where multiple individuals of different species contribute genetically and parentally to offspring in a single nest, is a rare form of cooperative breeding that has only occasionally been reported in socially monogamous birds. Here we describe, both behaviorally and genetically, the unique case of two female birds, a western kingbird () and a western kingbird × scissor-tailed flycatcher () hybrid, simultaneously occupying (and likely co-incubating eggs in) a single nest. Both females provisioned nestlings, and they did this in two consecutive years (producing four fledglings each year).
View Article and Find Full Text PDFVet Med Sci
January 2025
Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya, Central, Sri Lanka.
Family poultry farming plays a crucial role in ensuring protein availability and household income, particularly in low-income families. This study investigates the knowledge, attitudes and practices of family poultry farmers regarding poultry diseases, biosecurity and vaccinations. The research involved surveying 150 farmers in a selected area in Sri Lanka's western province, revealing significant knowledge gaps, particularly in understanding poultry diseases, their causes, transmission pathways and potential impacts on humans.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
December 2024
State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China.
Black-bone silky fowls(Gallus gallus domesticus) have a long history of medicinal use, with the origin in Taihe county, Jiangxi province. The unclear family composition, inbreeding rate, and effective population size were inconducive to the resource conservation or breed improvement of black-bone silky fowls. A genome-wide analysis was performed to evaluate the genetic diversity of 80 black-bone silky fowls from random mating in three farms in 2021 in terms of minor allele frequency(MAF), expected heterozygosity(H_e), observed heterozygosity(H_o), effective population size(N_e), and runs of homozygosity(ROH).
View Article and Find Full Text PDFVirus Evol
December 2024
School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia.
The ability of viruses to emerge in new species is influenced by aspects of host biology and ecology, with some taxa harbouring a high diversity and abundance of viruses. However, how these factors shape virus diversity at the ecosystem scale is often unclear. To better understand the pattern and determinants of viral diversity within an ecosystem, and to describe the novel avian viruses infecting an individual avian community, we performed a metagenomic snapshot of the virome from the entire avian community on remote Pukenui/Anchor Island in Aotearoa New Zealand.
View Article and Find Full Text PDFMitochondrial DNA B Resour
January 2025
Negaunee Integrative Research Center, Field Museum, Chicago, IL, USA.
Crimsonwings are estrildid finches found in the understory of montane rainforests of sub-Saharan Africa. The genus includes four species: Sharpe 1902, Sharpe 1902, (Hartlaub 1874), and Reichenow 1892. The first two are endemic to the Albertine Rift, while the latter two are more widespread.
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