fowl pox and treatment
TRANSCRIPT
Fowl pox
Presented By: Dr Muhammad Awais
Tatari
Fowl poxSore head
Avian diphtheria
Bird pox
Introduction
• Fowlpox is contagious viral disease.
• Bird of all age is affected by this disease.
• Chicken and turkeys are mainly affected by this disease.
• Some viral type may also affect pigeon,geese.pheasants and quills.
• 1-2% mortality rate.
• Incubation period 2-3 weeks.
• Fowlpox is seen worldwide.
Etiology
• The large dsDNA virus an avipoxvirus belongs to family Poxviridae.
• Enveloped.• Bricked shaped virus.
Transmission
• Mosquitoes are the most common vectors for transmission of the avipoxvirus.
• The virus can also be transmitted indirectly by contaminated surfaces or airborne particles.
• Contaminated water and feed.
• Scales of disease bird also transmit the disease.
• Through wounds.
• Vertical transmission is suspected.
Clinical sign
• Cutaneous form (Dry form)
• Diphtheritic form (wet form)
• Oculonasal form
Cutaneous form (Dry form)
• Warts like growths are seen on face, comb, wattle and featherless part of the body.
• They grow readily and then yellow and later turn black or brown lesion.
• After 2-3 weeks the lesion dry up and scabby.
• In some cases, lesions are limited chiefly to the feet and legs.
• Cutaneous lesions on the eyelids may cause complete closure of one or both eyes.
• This form is more common then other.
Diphtheritic form (wet form)
• White patches or slightly elevated nodule occur inside the mouth and tongue.
• The mucous membrane of mouth and esophagus are affected.
• The breathing may be difficult.
Oculonasal form
• Eruption occur on the opening of eye and nose.
• The ear and nose may swell and discharge from eye and nose may be seen.
• The affected bird do not eat and le idley.
Post mortem lesion
• The diphtheritic form is recognized by the presence of nodular hyperplasia of the mucosa of the pharynx and trachea.
• Chickens which die of diphtheritic pox may show a plug of desquamated epithelium which lodge in the glottis resulting in asphyxiation.
Diagnosis
• Diagnosis Cutaneous lesions are characteristic.
• Histological examination of affected tissue will confirm the presence of intracytoplasmic inclusions (Bollinger bodies) in the respiratory mucosa and skin.
• PCR
Differential diagnose
• Necrotic dermatitis.• Leg mites. • Thrush and canker.
Prevention & Controls
• Using a mild-attenuated avipox, chicken-strain virus vaccine administered at approximately 8 weeks of age.
• In some areas, broilers are routinely vaccinated against avian pox by subcutaneous injection at day-old.
• All in all out program.
• Control mosquito. (anti mosquito spray)
• Biosecurity
Treatment
• Oxytetracyclin 300mg per gallon water for three days.
• Treat scabs with dilute iodine solution.
• Apply ointment to soften the scab. Mix 2 tablespoon of sulfur powder with ½ cup Vaseline. Apply daily until lesion heal.
• Mix diluted iodine solute on in flock drinking water. 1 teaspoon of 1% iodine solution per gallon of drinking water.
• Sanitize drinking water.