Monitoring of Dermanyssus gallinae in free-range poultry farms

2009 ◽  
pp. 157-166 ◽  
Author(s):  
L. Zenner ◽  
G. Bon ◽  
C. Chauve ◽  
C. Nemoz ◽  
S. Lubac
Keyword(s):  
Dermanyssus Gallinae ◽  
Free Range ◽  
Poultry Farms

Monitoring of Dermanyssus gallinae in free-range poultry farms

2009 ◽  
Vol 48 (1-2) ◽  
pp. 157-166 ◽  
Author(s):  
L. Zenner ◽  
G. Bon ◽  
C. Chauve ◽  
C. Nemoz ◽  
S. Lubac
Keyword(s):  
Dermanyssus Gallinae ◽  
Free Range ◽  
Poultry Farms

scholarly journals Importance and Impact of the Poultry Red Mite (Dermanyssus Gallinae) in Layer Farms - Analysis of Farmers’ Perception

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Miroslav Kjosevski ◽  
Danijela Horvatek Tomić ◽  
Aleksandar Dodovski
Keyword(s):  
Crude Oil ◽  
Pest Management ◽  
Descriptive Statistics ◽  
Dermanyssus Gallinae ◽  
Bayes Classifier ◽  
Poultry Red Mite ◽  
Monitoring Method ◽  
Poultry Farms ◽  
And Control ◽  
The Impact

Abstract Poultry red mite (PRM), Dermanyssus gallinae, causes egg drop production, anemia and can be a vector in transmitting diseases. The PRM control mainly focuses on usage of the conventional chemical biocides. The objective of this study was to analyze the farmers’ perception regarding the impact, management and control of PRM in Macedonian layer farms. The data were collected with direct on-site visits using a unified questionnaire. In total, 29 poultry farms (28% of farms in the country), all with conventional cages, were part of this study. The data were analyzed by descriptive statistics, inferential statistics and Naïve Bayes Classifier technique. In 30% of the poultry farms the farmers had observed that the flock was infested with PRM. In total, 32 different treatments against PRM were reported from the farmers, and three of them were non-biocide treatments. The most used biocides (17% of the farms) were crude oil, Formalin, Neopitroid® and disinfectants. The highest agreement regarding biocides application among the farms (38%) was before the production starts. Most of the farmers applied biocides routinely, before the infestation is evident (75%). The median costs for PRM treatment were 175€ per flock, higher in the infested farms 493±677€ compared to non - infested 100±71€, p<0.05. None of the Macedonian farmers included in the study was using monitoring method for PRM infestation, contributing to poor data records. This study highlights the need of developing unified strategy for PRM control included in the Integrated Pest Management in poultry layer farms.

scholarly journals Resistance Development of Dermanyssus gallinae Against Commercial Acaricides in Poultry Farms in Japan

2015 ◽  
Vol 68 (8) ◽  
pp. 509-514 ◽  
Author(s):  
Takako MURANO ◽  
Kazuo NAMIKI ◽  
Koichi SHIINA ◽  
Hisashi YASUKAWA
Keyword(s):  
Dermanyssus Gallinae ◽  
Resistance Development ◽  
Poultry Farms

Dermanyssus gallinae in Dutch poultry farms: Results of a questionnaire on severity, control treatments, cleaning, and biosecurity

2010 ◽  
pp. 513-516
Author(s):  
Monique F. Mul ◽  
Thea G. C. M. van Niekerk ◽  
Berry F. J. Reuvekamp ◽  
Rick A. van Emous
Keyword(s):  
Dermanyssus Gallinae ◽  
Poultry Farms

scholarly journals DERMANYSSUS GALLINAE - OVERVIEW: LIFE CYCLE, MORPHOLOGY, PREVALENCE AND CONTROL MEASURES IN POULTRY FARMS

2017 ◽  
Vol 10 (2) ◽  
pp. 53-62
Author(s):  
Slobodan Knežević ◽  
Marko Pajić ◽  
Aleksandra Petrović ◽  
Suzana Vidaković ◽  
Jelena Babić ◽  
...  
Keyword(s):  
Life Cycle ◽  
Pasteurella Multocida ◽  
Egg Laying ◽  
Control Measures ◽  
Alternative Methods ◽  
Dermanyssus Gallinae ◽  
Salmonella Spp ◽  
Poultry Red Mite ◽  
Antimicrobial Resistance Genes ◽  
Poultry Farms

Dermanyssus gallinae or the poultry red mite is currently the most im-portant ectoparasite aff ecting egg-laying hens in several countries causing reduced poultry welfare, mortality and even allergic reactions in poultry farms workers. Its short life cycle, which in optimal conditions can be com-pleted within 7 days, and ability to survive in extreme circumstances with-out a blood meal up to 13 months, and the ability to infest new fl ock, makes it even more diffi cult to eradicate. Dermanyssus gallinae prevalence rates in diff erent European countries, including Serbia, can reach up to 80-90%. Also, the poultry red mite is responsible in vector transmission of several bacterial and viral avian diseases, including Salmonella spp, Chlamydia spp., Escherichia coli, Staphylococcus spp., Pasteurella multocida, Newcas-tle disease and Fowl poxvirus. Besides that, the poultry red mite can also transfer antimicrobial resistance genes by carrying pathogenic bacterial fl ora. Control of Dermanyssus gallinae can be divided into conventional and alternative methods. Conventional methods are mostly focused on pre-venting infestations and/or killing Dermanyssus gallinae, while alternative methods include the use of essential oils, vaccines, light, odors, predatory mites, fungi, nematodes and bacterial endosymbionts, and temperature in order to eliminate the poultry red mite. Nevertheless, this small ectopara-site still makes millions worth damage to global poultry industry.

scholarly journals Assessment of Fluralaner Treatment in Eliminating Dermanyssus Gallinae Infestation From Commercial Layer Farms, and the Potential for Derived Benefits of Improved Bird Welfare and Productivity.

2020 ◽  
Author(s):  
Ivo Petersen ◽  
Katharina Johannhörster ◽  
Eric Pagot ◽  
Damian Escribano ◽  
Eva Zschiesche ◽  
...  
Keyword(s):  
Blood Feeding ◽  
Post Treatment ◽  
Stress Factors ◽  
Dermanyssus Gallinae ◽  
Poultry Red Mite ◽  
Night Time ◽  
Free Range ◽  
Welfare Benefits ◽  
Production Parameters ◽  
Cell Counts

Abstract Background. Infestations with the poultry red mite (PRM), Dermanyssus gallinae, can result in anaemia, stress-related behaviours linked to reduced laying hen welfare, and impaired productivity. A study was conducted to investigate the potential welfare benefits of PRM elimination following fluralaner treatment.MethodsA single poultry house was selected on each of two layer farms, one free-range, one aviary, containing 5,400 Lohmann LSL hens and 42,400 Lohmann Brown hens, respectively. Fluralaner (Exzolt®; 0.5 mg/kg body weight) was administered twice, seven days apart (Weeks 0 and 1). Mite populations were regularly monitored by traps left in place for one to two days. Infra-red cameras monitored night-time hen behaviours weekly, beginning five weeks pre-treatment, continuing for five and six weeks post-treatment on the free-range and aviary farms, respectively. Weekly daytime behaviours were recorded on the free-range farm. On the aviary farm, blood samples were collected from 50 randomly selected hens during Weeks -3, -1 and 5. On the free-range farm, eggs were randomly collected for corticosterone analysis during Weeks -6, 0 and 6, and on the aviary farm during Weeks -3, -1 and 5. Production parameters were assessed using farm records.ResultsFluralaner efficacy on the free-range farm was >99% following the first administration, and on the aviary farm was 100% at Week 1 and at all subsequent mite counts. On both farms, treatment was followed by significant reductions in night-time preening, head scratching, head shaking, and activity, and on the aviary farm in vertical wing shaking and gentle feather pecking. On the free-range farm there were significant daytime reductions in head scratching, head shaking and preening. Post-treatment increases in egg and plasma corticosterone were suggestive of stress factors extra to mite infestation. Red blood cell counts and haematocrit increased following treatment. On the free range farm, relative to standard production parameters for LSL hens, the decline in laying rate with increasing bird age was less than expected, and the increase in egg weight greater than expected. ConclusionFluralaner treatment eliminated mite challenge, leading to improved hen welfare and health, based on reductions in stress-related behaviours, and restoration of the anaemia-inducing effects of mite blood feeding.

scholarly journals Detection of a novel enterotropic Mycoplasma gallisepticum-like in European Starling (Sturnus vulgaris) around poultry farms in France

2021 ◽  
Author(s):  
Chloé Le Gall-Ladevèze ◽  
Laurent-Xavier Nouvel ◽  
Marie Souvestre ◽  
Guillaume Croville ◽  
Marie-Claude Hygonenq ◽  
...  
Keyword(s):  
Close Contact ◽  
Pcr Primers ◽  
Distinct Species ◽  
Mycoplasma Gallisepticum ◽  
Sturnus Vulgaris ◽  
Wild Birds ◽  
Free Range ◽  
Apparent Prevalence ◽  
Domestic Bird ◽  
Poultry Farms

Recent outbreaks of highly pathogenic avian influenza in southwest France have raised questions regarding the role of commensal wild birds in the introduction and dissemination of pathogens between poultry farms. To assess possible infectious contacts at the wild-domestic bird interface, the presence of Mycoplasma gallisepticum (MG) was studied in the two sympatric compartments in southwest France. Among various peridomestic wild birds (n=385), standard PCR primers targeting the 16S rRNA of MG showed a high apparent prevalence (up to 45%) in cloacal swabs of European starlings (Sturnus vulgaris, n=108), while the MG-specific mgc2 gene was not detected. No tracheal swab of these birds tested positive, and no clinical sign was observed in positive birds, suggesting commensalism in the digestive tract of starlings. A mycoplasma strain was then isolated from a starling swab and its whole genome was sequenced using both Illumina and Nanopore technologies. Phylogenetic analysis showed that it was closely related to MG and M. tullyi, although it was a distinct species. A pair of specific PCR primers targeting the mgc2-like gene of this MG-like strain was designed and used to screen again the same avian populations and a wintering urban population of starlings (n=50). Previous PCR results obtained in starlings were confirmed to be mostly due to this strain (20/22 positive pools). In contrast, the strain was not detected in fresh faeces of urban starlings. Furthermore, it was detected in one tracheal pool of cattle egrets and one cloacal pool of white wagtails, suggesting infectious transmissions between synanthropic birds with similar feeding behaviour. As the new starling mycoplasma was not detected in free-range ducks (n=80) in close contact with positive starlings, nor in backyard (n=320) and free-range commercial (n=720) chickens of the area, it might not infect poultry. However, it could be involved in mycoplasma gene transfer in such multi-species contexts.

scholarly journals Assessment of fluralaner as a treatment in controlling Dermanyssus gallinae infestation on commercial layer farms and the potential for resulting benefits of improved bird welfare and productivity

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Ivo Petersen ◽  
Katharina Johannhörster ◽  
Eric Pagot ◽  
Damian Escribano ◽  
Eva Zschiesche ◽  
...  
Keyword(s):  
Blood Feeding ◽  
Plasma Corticosterone ◽  
Post Treatment ◽  
Stress Factors ◽  
Dermanyssus Gallinae ◽  
Poultry Red Mite ◽  
Potential Health ◽  
Free Range ◽  
Production Parameters ◽  
Cell Counts

Abstract Background Poultry red mite (PRM) (Dermanyssus gallinae) infestations are a cause of anaemia, impaired productivity and stress-related behaviours linked to reduced hen welfare. A study investigated the potential health, welfare and productivity benefits following fluralaner treatment to eliminate PRM from infested hens. Methods A PRM-infested layer house was selected on a free-range farm (5400 hens) and an aviary farm (42,400 hens). Fluralaner (Exzolt®; 0.5 mg/kg body weight) was administered twice, 7 days apart (Weeks 0 and 1), via drinking water. Mite populations were monitored by traps. Cameras recorded nighttime hen behaviours weekly, pre- and post-treatment. On the free-range farm, daytime behaviours were also recorded weekly. For pre- and post-treatment corticosterone assessments, eggs were randomly collected on both farms, and blood samples were collected from 50 randomly selected aviary farm hens. Production parameters were assessed using farm records. Results Throughout the post-treatment period, fluralaner efficacy against PRM was > 99% on both farms. On the aviary and free-range farms, treatment was followed by significant nighttime increases in the proportion of resting hens (P < 0.0001; P = 0.0175, respectively). Significant post-treatment versus pre-treatment nighttime reductions were observed in head shaking (aviary, P < 0.0001; free-range P = 0.0233) and preening (P = 0.0032; P = 0.0018) and on the aviary farm in bouts of body shaking (P = 0.0108), vertical wing shaking (P = 0.0002), head scratching (P = 0.0335), and gentle feather pecking (P < 0.0001). On the free-range farm there were significant daytime reductions in head scratching (P < 0.0001), head shaking (P = 0.0492) and preening (P = 0.0012). Relative to standard production parameters, no differences were detected on the aviary farm, but on the free-range farm the laying rate decline with increasing age was less than expected and the increase in egg weight greater than expected. Post-treatment increases in egg and plasma corticosterone were suggestive of stress factors in addition to mite infestation. Red blood cell counts and haematocrit increased following treatment. Conclusion Fluralaner treatment eliminated mite challenge, leading to improved hen welfare and health, based on reductions in stress-related behaviours and restoration of the anaemia-inducing effects of mite blood feeding.

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