scholarly journals Mite fauna (Acari) associated with the poultry industry in different laying hen management systems in Southern Brazil: a species key

Acarologia ◽  
2018 ◽  
Vol 58 (1) ◽  
pp. 140-158
Author(s):  
Tamara Bianca Horn ◽  
Juliana Granich ◽  
Júlia Horn Körbes ◽  
Guilherme Liberato Da Silva ◽  
Noeli Juarez Ferla
Keyword(s):  
Biological Control ◽  
Wild Bird ◽  
Laying Hen ◽  
Management Systems ◽  
Dichotomous Key ◽  
Poultry Farms ◽  
Hen Feathers ◽  
Cheyletus Malaccensis ◽  
Cheyletus Eruditus ◽  
Blattisocius Dentriticus

This study is based on results from a large project on the mite diversity in commercial laying hen systems in Brazil. It aims to identify potential biocontrol agents amongst mites present in poultry farms, with a focus on one feather mite pest Megninia ginglymura. A secondary goal is to provide an operational identification tool to help the development of biological control in poultry farms. Sampling was conducted from August 2013 to August 2014, with 43 sampling events, in three different laying hen management systems. We used traps, laying hen feathers, and abandoned wild bird nests to collect the mites. A total of 38,862 mites belonging to 23 families and 39 species were found, including 17 species exclusively found in traps, six in wild bird nests, and one in feathers. The most abundant and frequent ectoparasitic species was M. ginglymura (76.3%; observed in all management systems). Amongst other mites, Tydeidae showed the highest richness with five species (Brachytydeus argentinensis (Baker, 1970), Brachytydeus australensis (Baker, 1970), Brachytydeus obnoxia (Kuznetzov and Zapletina, 1972), Brachytydeus oregonensis (Baker, 1970), and Brachytydeus tuttlei (Baker, 1965)), followed by Cheyletidae with four species (Chelacheles bipanus Summers and Price, 1970, Cheyletus eruditus (Schrank, 1781), Cheyletus malaccensis (Oudemans, 1903), and Cheletomimus (Hemicheyletia) wellsi (Baker, 1949)). Potential predatory species for biological control were C. malaccensis (9.4%), Typhlodromus transvaalensis (Nesbitt, 1951) (0.8%), Blattisocius keegani (Fox, 1947) (0.7%), and Blattisocius dentriticus (Berlese, 1918) (0.4%). A dichotomous key is provided to identify 48 species dwelling in Brazilian layer farms.

scholarly journals Characterization of Egg Laying Hen and Broiler Fecal Microbiota in Poultry Farms in Croatia, Czech Republic, Hungary and Slovenia

PLoS ONE ◽  
2014 ◽  
Vol 9 (10) ◽  
pp. e110076 ◽  
Author(s):  
Petra Videnska ◽  
Md. Masudur Rahman ◽  
Marcela Faldynova ◽  
Vladimir Babak ◽  
Marta Elsheimer Matulova ◽  
...  
Keyword(s):  
Czech Republic ◽  
Fecal Microbiota ◽  
Laying Hen ◽  
Egg Laying ◽  
Poultry Farms

scholarly journals Development of Cheyletus eruditus (Schrank) (Acarina: Cheyletidae) at low temperature

1999 ◽  
Vol 35 (No. 1) ◽  
pp. 14-16 ◽  
Author(s):  
E. Ždarková ◽  
P. Horák
Keyword(s):  
Biological Control ◽  
Low Temperature ◽  
Predatory Mite ◽  
Temperature Threshold ◽  
Acarus Siro ◽  
Cheyletus Eruditus

Development of the predatory mite C. eruditus was examined at 12, 14 and 25°C and 75% r.h. 12°C is the low temperature threshold for development of this species where development lasts 164 days, compared with 47 days of its prey Acarus siro under the same conditions. Since repressive biological control cannot be successful under those circumstances, the predators can only be used preventively in empty stores.

Influence of laying hen systems on the mite fauna (Acari) community of commercial poultry farms in southern Brazil

2015 ◽  
Vol 115 (1) ◽  
pp. 355-366 ◽  
Author(s):  
Tamara Bianca Horn ◽  
Júlia Horn Körbes ◽  
Juliana Granich ◽  
Malena Senter ◽  
Noeli Juarez Ferla
Keyword(s):  
Laying Hen ◽  
Southern Brazil ◽  
Poultry Farms ◽  
Commercial Poultry

scholarly journals Progress towards development and adoption of integrated management systems against flystrike and lice in sheep

1999 ◽  
pp. 37-42 ◽  
Author(s):  
D.J.W. Cole ◽  
A.C.G. Heath
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Integrated Management ◽  
Holistic Approach ◽  
Management Systems ◽  
Healthy Sheep ◽  
Set Up ◽  
The Cost ◽  
Farming Industry ◽  
And Control

Ectoparasites of sheep, principally blowflies and lice, cost the New Zealand farming industry an estimated $60 million each year. This figure includes the cost of chemicals and labour used to treat or prevent flystrike and lice, together with the lost production. An Integrated Pest Management (IPM) trial project involving four groups of farmers (overall total 15) in four regions of New Zealand has been set up with the aim of adopting a holistic approach to managing these parasites and already early benefits have accrued to the farmers involved. Procedures were set up to reduce insecticide residues in wool by using techniques such as jetting which apply less chemical to the sheep but target it more appropriately and maintain or improve protection against flystrike and control of lice. As a consequence, savings in chemical and labour costs have been made. On two farms in particular, savings on these items ranged from $578 (27% reduction) on a property with 2000 Corriedale ewes to $3608 (52% reduction) on the other property with 8000 Romney ewes. An understanding that clean, healthy sheep, free of nematodes and dags, are less susceptible to flystrike and lice has also assisted in controlling the diseases. This paper also discusses the potential for biological control against blowfly populations, with large fly traps, sterilising baits and parasitoid wasps all being investigated. Research continues on specialist pastures such as birdsfoot trefoil (Lotus corniculatus) and sulla (Hedysarum coronarium) to evaluate the practicalities of incorporating their use in management systems for both nematode and flystrike control. Keywords: biological control, blowflies, flystrike, insecticides, IPM, lice, pasture varieties, sheep

scholarly journals Compatibility of Cheyletus eruditus (Schrank) (Acari: Cheyletidae) and Ce­phalonomia tarsalis (Ashmead) (Hymenoptera: Bethylidae) in biological control of stored grain pests

2011 ◽  
Vol 39 (No. 1) ◽  
pp. 29-34 ◽  
Author(s):  
E. Žďárková ◽  
J. Lukáš ◽  
P. Horák
Keyword(s):  
Biological Control ◽  
Laboratory Experiment ◽  
Natural Enemies ◽  
Predatory Mite ◽  
Oryzaephilus Surinamensis ◽  
Stored Grain ◽  
Acarus Siro ◽  
Stored Grain Pests ◽  
Cheyletus Eruditus ◽  
Initial Infestation

A laboratory experiment was carried out on stored wheat infested by the stored product mite Acarus siro and beetle Oryzaephilus surinamensis. The initial infestation was 150 mites of A. siro and 15 beetles of O. surinamensis per 1 kg of wheat. The predatory mite Cheyletus eruditus and parasitoid Cephalonomia tarsalis were added in the ratio 1:20 and 1:12, repectively. Three combinations were tested: (1) mites and (2) beetles separately, and (3) mites and beetles together. The experiment ran for three months at 22°C and 75% RH. The pests were suppressed by their antagonists in all combinations. Synchronous application of both natural enemies resulted in better control of O. surinamensis through an enhanced effect of both antagonists.

scholarly journals Biological control of stored food mites on oilsecds using the mite predator Cheyletus eruditus (Schrank)

1999 ◽  
Vol 35 (No. 4) ◽  
pp. 136-138
Author(s):  
E. Žďárková ◽  
R. Feit
Keyword(s):  
Biological Control ◽  
Cheyletus Eruditus ◽  
Mite Predator

The suppressive biological control of mites on oilseeds can be successful under the circumstances of the ratio of prey and predators being I  : 20 to 1 : 50 and the original infestation not being higher than 500 specimens per 1  kg. Preventive biological control was carried out in empty oilseed stores after they were cleared. The predators which were released in the stores 2000 specimen s being evenly distributed over an area of 100 m<sup>2</sup> were successful and suppress the population of acaroid mites.

scholarly journals Detection of Extended-Spectrum Beta-Lactamase (ESBL)-Producing Escherichia coli on Flies at Poultry Farms

2013 ◽  
Vol 80 (1) ◽  
pp. 239-246 ◽  
Author(s):  
Hetty Blaak ◽  
Raditijo A. Hamidjaja ◽  
Angela H. A. M. van Hoek ◽  
Lianne de Heer ◽  
Ana Maria de Roda Husman ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Laying Hen ◽  
Beta Lactamase ◽  
Blow Flies ◽  
Content Type ◽  
House Flies ◽  
Extended Spectrum Beta Lactamase ◽  
E Coli ◽  
Poultry Farms ◽  
Broiler Farm

ABSTRACTIn the Netherlands, extended-spectrum beta-lactamase (ESBL)-producingEscherichia colibacteria are highly prevalent in poultry, and chicken meat has been implicated as a source of ESBL-producingE. colipresent in the human population. The current study describes the isolation of ESBL-producingE. colifrom house flies and blow flies caught at two poultry farms, offering a potential alternative route of transmission of ESBL-producingE. colifrom poultry to humans. Overall, 87 flies were analyzed in 19 pools. ESBL-producingE. colibacteria were detected in two fly pools (10.5%): a pool of three blow flies from a broiler farm and a pool of eight house flies from a laying-hen farm. From each positive fly pool, six isolates were characterized and compared with isolates obtained from manure (n= 53) sampled at both farms and rinse water (n= 10) from the broiler farm. Among six fly isolates from the broiler farm, four different types were detected with respect to phylogenetic group, sequence type (ST), and ESBL genotype: A0/ST3519/SHV-12, A1/ST10/SHV-12, A1/ST58/SHV-12, and B1/ST448/CTX-M-1. These types, as well as six additional types, were also present in manure and/or rinse water at the same farm. At the laying-hen farm, all fly and manure isolates were identical, carryingblaTEM-52in an A1/ST48 genetic background. The data imply that flies acquire ESBL-producingE. coliat poultry farms, warranting further evaluation of the contribution of flies to dissemination of ESBL-producingE. coliin the community.

09. The effect of different management systems on levels of resistant bacteria isolated on pig and poultry farms

2003 ◽  
Vol 74 ◽  
pp. 4 ◽  
Author(s):  
E.J. Pleydell ◽  
E. Snary ◽  
F. Clifton-Hadley ◽  
I. McLaren ◽  
H. Davison ◽  
...  
Keyword(s):  
Management Systems ◽  
Resistant Bacteria ◽  
Poultry Farms
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