Dermanyssus: Difference between revisions

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'''Dermanyssus''' is a genus of mites in the family [[Dermanyssidae]]. The genus includes several species that are parasitic on birds and mammals, including humans. The most well-known species is ''[[Dermanyssus gallinae]]'', commonly known as the chicken mite or red mite, which is a significant pest in poultry farming.
{{Short description|A detailed overview of the poultry red mite, Dermanyssus gallinae}}


== Biology ==
==Dermanyssus gallinae==
[[File:Dermanyssus_gallinae_mite.jpg|thumb|right|Dermanyssus gallinae, the poultry red mite]]
'''Dermanyssus gallinae''', commonly known as the poultry red mite, is an ectoparasite of birds, particularly affecting domestic fowl. It is a member of the [[Acari]] subclass and belongs to the [[Dermanyssidae]] family. This mite is of significant concern in the poultry industry due to its impact on animal welfare and productivity.


Members of the genus ''Dermanyssus'' are ectoparasites, meaning they live on the outside of their host's body. They feed on the host's blood and can cause a range of health problems, including anemia, skin irritation, and secondary infections. Some species, such as ''Dermanyssus gallinae'', can also transmit diseases to their hosts.
===Morphology===
Dermanyssus gallinae is a small, blood-feeding mite, typically measuring 0.6 to 1 mm in length. The body is dorsoventrally flattened, allowing it to hide in narrow crevices. The mite's color varies from grey to red, depending on whether it has recently fed on blood. The legs are long and adapted for rapid movement.


== Species ==
===Life Cycle===
The life cycle of Dermanyssus gallinae consists of five stages: egg, larva, protonymph, deutonymph, and adult. The entire cycle can be completed in as little as seven days under optimal conditions, leading to rapid population growth. The mites are nocturnal feeders, emerging at night to feed on the blood of their hosts.


There are several species in the genus ''Dermanyssus'', including:
===Habitat and Behavior===
Dermanyssus gallinae is primarily found in poultry houses, where it hides in cracks and crevices during the day. It is a nocturnal parasite, feeding on birds at night. The mite can survive for several months without a blood meal, making it difficult to eradicate.


* ''[[Dermanyssus gallinae]]'' - the chicken mite or red mite
===Impact on Poultry===
* ''[[Dermanyssus americanus]]'' - the American chicken mite
Infestations of Dermanyssus gallinae can lead to significant health issues in poultry, including anemia, decreased egg production, and increased susceptibility to disease. The stress caused by mite infestations can also lead to behavioral changes in birds, such as feather pecking and cannibalism.
* ''[[Dermanyssus carpathicus]]'' - the Carpathian mite
* ''[[Dermanyssus hirundinis]]'' - the swallow mite
* ''[[Dermanyssus longipes]]'' - the long-legged mite


== Control ==
===Control and Management===
Controlling Dermanyssus gallinae involves a combination of chemical and non-chemical methods. Chemical control includes the use of acaricides, while non-chemical methods involve improving hygiene and environmental management. Regular monitoring and early detection are crucial for effective control.


Control of ''Dermanyssus'' mites in poultry farming involves a combination of good hygiene practices, regular monitoring, and the use of acaricides. However, resistance to acaricides is a growing problem, and alternative control methods, such as the use of predatory mites, are being explored.
==Related pages==
* [[Acari]]
* [[Ectoparasite]]
* [[Poultry]]
* [[Animal welfare]]


== See also ==
[[Category:Parasites of birds]]
 
[[Category:Arachnids]]
* [[List of mites parasitic on humans]]
* [[Poultry farming]]
* [[Parasitology]]
 
[[Category:Mites]]
[[Category:Parasites]]
[[Category:Poultry diseases]]
[[Category:Poultry diseases]]
{{stub}}

Latest revision as of 12:07, 15 February 2025

A detailed overview of the poultry red mite, Dermanyssus gallinae


Dermanyssus gallinae[edit]

Dermanyssus gallinae, the poultry red mite

Dermanyssus gallinae, commonly known as the poultry red mite, is an ectoparasite of birds, particularly affecting domestic fowl. It is a member of the Acari subclass and belongs to the Dermanyssidae family. This mite is of significant concern in the poultry industry due to its impact on animal welfare and productivity.

Morphology[edit]

Dermanyssus gallinae is a small, blood-feeding mite, typically measuring 0.6 to 1 mm in length. The body is dorsoventrally flattened, allowing it to hide in narrow crevices. The mite's color varies from grey to red, depending on whether it has recently fed on blood. The legs are long and adapted for rapid movement.

Life Cycle[edit]

The life cycle of Dermanyssus gallinae consists of five stages: egg, larva, protonymph, deutonymph, and adult. The entire cycle can be completed in as little as seven days under optimal conditions, leading to rapid population growth. The mites are nocturnal feeders, emerging at night to feed on the blood of their hosts.

Habitat and Behavior[edit]

Dermanyssus gallinae is primarily found in poultry houses, where it hides in cracks and crevices during the day. It is a nocturnal parasite, feeding on birds at night. The mite can survive for several months without a blood meal, making it difficult to eradicate.

Impact on Poultry[edit]

Infestations of Dermanyssus gallinae can lead to significant health issues in poultry, including anemia, decreased egg production, and increased susceptibility to disease. The stress caused by mite infestations can also lead to behavioral changes in birds, such as feather pecking and cannibalism.

Control and Management[edit]

Controlling Dermanyssus gallinae involves a combination of chemical and non-chemical methods. Chemical control includes the use of acaricides, while non-chemical methods involve improving hygiene and environmental management. Regular monitoring and early detection are crucial for effective control.

Related pages[edit]