Red bumps, or mites , seem to be a growing problem for the poultry industry not only in Mexico, but also in the rest of the world. This site offers recommendations on the prevention and control of gorillas (Dermanyssus gallinae) also called red mites, in the production of poultry farms.

Adult Gorupo Dermanyssus Gallinae. Photo of Lyle J.
University of Florida

The red gorillas have the scientific name Dermanyssus gallinae is a blood-sucking ectoparasite that can be found in the chicken coop.

This ectoparasite can also live in other birds and wild animals, it is usually more common to find gorupos in hens, pigeons, parrots and other birds in general. The parasite is very common that is present in farms where there are laying hens, this parasite has room all over the world. The places where gorunts are most likely to proliferate are climates with temperatures between 20 ° and 35 ° C.

This ectoparasite can carry a wide variety of infectious agents for the poultry industry and also affects the animal well-being of the chickens in the house where the parasite is located.

Illustration of Gorman Dermanyssus Gallinae at different stages of life from left to right lava - prtoninfa - deutoninfa - of Sparagano

These sparrows or red mites are often found in corners and cracks in the nest and perch of chicken coops. They can live a long time without feeding on blood, about 10 months so cleaning has to be an important factor to get them eliminated as soon as possible.

Gorupo Life Cycle - Illustration of Sparagano

Under favorable conditions (warm and humid climate) you can complete its life cycle in 7 days: huge gorup populations can be built in a few weeks .

Development can be slowed due to the low temperatures and is almost interrupted below -2 ° C. For this reason, the infestation of gorups in hens which is often outdoors are only a summer problem in many regions.

Adult mites are 0.6 to 1 mm long, and have a dark reddish color, or a whitish to gray color depending on whether they are have sucked blood or not.

Over time they become a little smaller and gray or black. If they take too long without eating their color would be whitish. Like other spice bugs or mites, adults have four pairs of legs. Larvae are similar to adults, but smaller and have three pairs of legs. Nymphs have four pairs of legs.

Adults and nymphs usually attack birds at night and suck blood. Each blood meal has a duration of 1 to 2 hours.

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The gorillas leave the host during the day to hide in cracks, crevices and hollow places (eg in feeders and feeders, walls, floors , etc.) near the birds (also in the nests of the birds), where they are often in groups of hundreds or thousands. In very high populations the goropos can feed on their hosts also during the day. Bolls in birds are found especially around the beak and ears, in the chest, back and legs.

Goroscopes can affect hens and egg production as they produce stress and anemia even after months of contact with mites.

Gorupo infestation sources Dermanyssus gallinae can be transmitted in poultry operations through numerous routes. Wild birds visiting the chicken coops can introduce mites. Workers and visitors to the chicken coops can also carry mites in fabrics and footwear. The mites are transported from one henhouse to another inside baskets of eggs and floors, tombs and many other items. How to detect when you are infested with Gorupos?

This image shows a colony of gorupos in a tube.
Photo taken from the site no-more-files.com

symptoms vary depending on the severity of infestation, the first thing you will usually discover are:

Blood stains on hens' feathers
When blood stains are detected in hens or other birds, it means there are a large number of goruni, and action should be taken as quickly as possible.

Blood spots can also be present in hens' eggs

Symptoms of skin allergies in humans and itching in The skin can also attack people and this could lead to allergic reactions with itching and rash.

Hens may seem very restless when they are infested with gorupps.

You can also tell if a hen has this ectoparasite with the color of the ridge, when you have this host usually her ridge is

Another symptom of infestation of this ectoparasite is the drop in egg production.

The sudden death of hens.

It is important that the mites are detected as soon as possible.

Appropriate places to look for are: