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Avian Paramyxoviros


Course of the disease:

Within just a few days of infection, both visibly and latently affected birds shed the virus in secretions from the conjunctiva, nose and throat, as well as in the feces. The incubation period ranges from 3 to 21 days. Up to 30% of affected pigeons may recover spontaneously after around 4 weeks of illness.

Symptoms of the disease:

The initial signs of paramyxovirosis are increased water intake combined with reduced feed consumption, emaciation and diarrhoea-like fasces due to a pathogenic increase in fluid excretion (= polyuria: puddles containing floating particles of fasces are formed in the loft). This is typically followed by uni- or bilateral paralysis of the legs, timidity, torsion of the neck, twisting movements of the body, overturning and walking backwards. Most pigeons die.

Recognition of the disease:

The virus can be demonstrated in specially equipped laboratories by virological examination of organ samples (brain, kidneys) from dead pigeons. Antibody demonstration is performed by serological examination of blood samples taken from affected pigeons not earlier than 2 weeks after infection.

Similar conditions: Salmonellosis.

Treatment:

As with other viral diseases, there is no effective treatment for affected pigeons. If infection is suspected in a flock, emergency vaccination can be carried out in all igeons that appear healthy in order to prevent the infection spreading.

Paramyxovirus vaccination plan, starting on day 4 = vaccination day). Visibly affected birds should be excluded from emergency vaccination and removed from the flock, since by shedding the virus they put the remainder of the flock at risk until vaccine protection is acquired.

Administration of LivimunĀ® and multivitamin EB12 is recommended to boost the birds' natural resistance.

Prevention:

Only active immunization is with PMV-1 thisĀ  protects the pigeons, which then develop a stable immunity within 3-4 weeks.

Source: Chevita.com

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