Chicken tick disease is actually called chicken Persian sharp edge tick, is an introduction to veterinary knowledge of ectoparasites

2022-05-15 0 By

Argas persicus, also known as the soft tick or chicken tick, belongs to Argasidae, Arachnida, arachnida. It is mainly parasitic on chickens, ducks, geese and wild birds, and occasionally occurs in cattle, sheep, dogs and humans.1.Pathogen soft tick body flat, oval, light gray yellow.The prosthetic head is located on the anterior abdomen and cannot be seen from the back.Body edge thin sharp, stripe shape or square block.The back and belly are delimited with a suture.There are small folds and many radially arranged pits on the epidermis, without eyes.Larvae have 3 pairs of feet, nymphs and adults have 4 pairs of feet.2.Life history The development of ticks is divided into four stages: egg, larva, nymph and adult.It takes 6 to 10 days to hatch from eggs in warm season and about 3 months in cool season.When the larvae are 4-5 days old, they search for the host and drink blood for 4 to 5 times and then leave the host for 3 to 9 days. After 10 to 45 minutes of blood feeding, they leave the host and hide for 5 to 8 days. After molting, they become the second stage.The second stage nymph sucks blood within 5-15 days, and after sucking blood for 15-75 minutes, it hides and moults into adults for 1215 days.After about a week, the females mate with the males, and within 3 to 5 days the females lay eggs.The whole life cycle takes 7 to 8 weeks.The soft tick WHITE D hides in the nests of birds, houses and nearby under bricks or cracks of trees. It moves at night and invades animals to suck blood, but the activity of larvae is not restricted by day and night.The soft tick is the carrier of the pathogen of chicken, duck and goose spirospirosis, and can be used as the carrier of brucellosis, anthrax and leprosy.3.Clinical symptoms Soft ticks absorb a large amount of blood, the harm is very serious, can make poultry anemia, emaciation, weakness, slow growth, egg production decreased, and can cause tick paralysis, even death.4.Prevention and control is mainly to kill the soft ticks on the bird body and in the habitat and activity place of birds with drugs.Drug and usage refer to lice prevention and control measures.