scholarly journals Collecting and Monitoring for Northern Fowl Mite (Acari: Macronyssidae) and Poultry Red Mite (Acari: Dermanyssidae) in Poultry Systems

2020 ◽  
Vol 20 (6) ◽  
Author(s):  
Amy C Murillo ◽  
Bradley A Mullens
Keyword(s):  
Decision Making ◽  
Sampling Methods ◽  
Dermanyssus Gallinae ◽  
Poultry Red Mite ◽  
Future Directions ◽  
Ornithonyssus Sylviarum ◽  
Northern Fowl Mite ◽  
Basic Biology

Abstract The two most economically important poultry ectoparasites are the northern fowl mite, Ornithonyssus sylviarum (Canestrini and Fanzago), and the poultry red mite, Dermanyssus gallinae (De Geer). Both mites are obligate blood feeders but differ in where they reside. Sampling methods thus focus on-host, especially the vent feathers, for northern fowl mite and off-host, especially cracks and crevices near the nighttime roosting areas, for poultry red mite. Much remains unknown, however, about the basic biology and ecology of both mites. Here we discuss mite detection, quantification, and decision making and provide thoughts on future directions for research.

scholarly journals De novo transcriptome sequencing of the northern fowl mite, Ornithonyssus sylviarum, shed light into parasitiform poultry mites evolution and its chemoreceptor repertoires

2021 ◽  
Author(s):  
Biswajit Bhowmick ◽  
Huaqing Chen ◽  
Jesus Lozano-Fernandez ◽  
Joel Vizueta ◽  
Rickard Ignell ◽  
...  
Keyword(s):  
De Novo ◽  
Functional Characterization ◽  
Dermanyssus Gallinae ◽  
Gene Repertoire ◽  
Transcriptome Data ◽  
Poultry Red Mite ◽  
Additional Species ◽  
Ornithonyssus Sylviarum ◽  
Northern Fowl Mite ◽  
Parasitic Lifestyle

The poultry red mite (PRM), Dermanyssus gallinae (De Geer), and the northern fowl mite (NFM), Ornithonyssus sylviarum (Canestrini and Fanzago), are the most serious pests of poultry, both of which have an expanding global prevalence. Research on NFM has been constrained by a lack of genomic and transcriptomic data. Here, we report and analyze the first transcriptome data for this species. A total of 28,999 unigenes were assembled, of which 19,750 (68.10%) were annotated using seven functional databases. The biological function of these unigenes was predicted using the GO, KOG, and KEGG databases. To gain insight into the chemosensory receptor-based system of parasitiform mites, we furthermore assessed the gene repertoire of gustatory receptors (GRs) and ionotropic receptors (IRs), both of which encode putative ligand-gated ion channel proteins. While these receptors are well characterized in insect model species, our understanding of chemosensory detection in mites and ticks is in its infancy. To address this paucity of data, we identified 9 IR/iGluRs and 2 GRs genes by analyzing transcriptome data in the NFM, while 9 GRs and 41 IR/iGluRs genes were annotated in the PRM genome. Taken together, the transcriptomic and genomic annotation of these two species provide a valuable reference for studies of parasitiform mites, and also helps to understand how chemosensory gene family expansion/contraction events may have been reshaped by an obligate parasitic lifestyle compared with their free-living closest relatives. Future studies should include additional species to validate this observation, and functional characterization of the identified proteins as a step forward in identifying tools for controlling these poultry pests.

PENGARUH KUALITAS PRODUK DAN PROMOSI TERHADAP KEPUTUSAN PEMBELIAN BUAH MELON PT. SYAFINA NIAGA

2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Iwan Kurniawan Subagja, SE., MM. ◽  
Slamet Istoto
Keyword(s):  
Decision Making ◽  
Product Quality ◽  
Sampling Methods ◽  
Marketing Mix ◽  
Sampling Techniques ◽  
Purchasing Decisions ◽  
Individual Activity ◽  
A Company ◽  
Melon Fruit

Decision making is an individual activity that is directly involved in obtaining and using the goods offered. Promotion is one of the variables in a marketing mix that is very important to be implemented by a company in marketing its products or services, thus influencing consumers to make purchasing decisions. The quality of the product can also affect consumers in making purchasing decisions. This study aims to analyze the effect of product quality and promotion on purchasing decision of Melon fruit. Population and sample of research is purchasing or buyer from consumer of PT. Syafina Niaga as many as 30 companies and sampling methods using saturated sampling techniques as well as analysis used with regression analysis. The results showed that there is a significant influence between product quality and promotion of purchasing decisions.

scholarly journals Case of Human Infestation with Dermanyssus gallinae (Poultry Red Mite) from Swallows (Hirundinidae)

Pathogens ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 299
Author(s):  
Georgios Sioutas ◽  
Styliani Minoudi ◽  
Katerina Tiligada ◽  
Caterina Chliva ◽  
Alexandros Triantafyllidis ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Cytochrome C ◽  
Cytochrome C Oxidase ◽  
Clinical Symptoms ◽  
Skin Lesions ◽  
Coi Gene ◽  
Dermanyssus Gallinae ◽  
Poultry Red Mite ◽  
Human Form ◽  
Bayesian Phylogenetic Analysis

Dermanyssus gallinae (the poultry red mite, PRM) is an important ectoparasite in the laying hen industry. PRM can also infest humans, causing gamasoidosis, which is manifested as skin lesions characterized by rash and itching. Recently, there has been an increase in the reported number of human infestation cases with D. gallinae, mostly associated with the proliferation of pigeons in cities where they build their nests. The human form of the disease has not been linked to swallows (Hirundinidae) before. In this report, we describe an incident of human gamasoidosis linked to a nest of swallows built on the window ledge of an apartment in the island of Kefalonia, Greece. Mites were identified as D. gallinae using morphological keys and amplifying the Cytochrome C oxidase subunit I (COI) gene by PCR. Bayesian phylogenetic analysis and median-joining network supported the identification of three PRM haplogroups and the haplotype isolated from swallows was identical to three PRM sequences isolated from hens in Portugal. The patient was treated with topical corticosteroids, while the house was sprayed with deltamethrin. After one week, the mites disappeared and clinical symptoms subsided. The current study is the first report of human gamasoidosis from PRM found in swallows’ nest.

Emerging communication technology research: Theoretical and methodological variables in the last 16 years and future directions

2015 ◽  
Vol 19 (4) ◽  
pp. 616-636 ◽  
Author(s):  
Porismita Borah
Keyword(s):  
Communication Technology ◽  
Social Networking Sites ◽  
Sampling Methods ◽  
Scientific Information ◽  
Research Literature ◽  
Future Directions ◽  
Frequent Use ◽  
Key Word ◽  
Empirical Research Methods ◽  
The Common

It is beneficial to reflect on the research literature of emerging communication technology and what has been studied so far, given the rapid growth of this area of research. This study conducted a content analysis of the published literature related to emerging communication technology over a period of 16 years from 1998 to 2013. An exhaustive sample was gathered using two methods of sampling: all Institute for Scientific Information (ISI)-listed communication journals and key word searches. The study examined the common patterns in theoretical, methodological, and technological variables. The primary findings reveal a lack of theory, fuzziness in the conceptualization of the research, growth in empirical research methods, frequent use of nonprobability sampling methods, and growth in studies on blogs, social networking sites (SNS), and mobile technology. Implications and future directions are discussed.

scholarly journals Shared decision-making in the People’s Republic of China: current status and future directions

2015 ◽  
pp. 1129 ◽  
Author(s):  
Rongchong Huang ◽  
Michael R. Gionfriddo ◽  
Aaron Leppin ◽  
Henry H. Ting ◽  
Lizhi Zhang ◽  
...  
Keyword(s):  
Decision Making ◽  
Shared Decision Making ◽  
Current Status ◽  
Shared Decision ◽  
Future Directions ◽  
Republic Of China ◽  
The People

Endosymbiotic bacteria living inside the poultry red mite (Dermanyssus gallinae)

2009 ◽  
Vol 48 (1-2) ◽  
pp. 105-113 ◽  
Author(s):  
Carlos J. De Luna ◽  
Claire Valiente Moro ◽  
Jonathan H. Guy ◽  
Lionel Zenner ◽  
Olivier A. E. Sparagano
Keyword(s):  
Dermanyssus Gallinae ◽  
Poultry Red Mite ◽  
Endosymbiotic Bacteria
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