Mycoplasmosis-poultry, Biology


Mycoplasma gallisepticum causes chronic respiratory disease (CRD) in chickens. The incubation period is 1-3 weeks. In young birds, the disease is less severe than adults and the predisposing factors are concurrent bacterial (E.coli) and viral (Reovirus) infections. The disease is characterized by nasal discharge, shaking of head, coughing, tracheal rales and swelling of infraorbital sinuses. The affected birds suffer from loss  of condition, reduced egg production and lowered fertility. The infection passes to next generation through eggs. Hence, it is absolutely essential to use Mycoplasma free embryos for production of vaccines. Ideally, it is preferable to use specific pathogen free (SPF) embryos.

The diagnosis of the disease is carried out by observing symptoms, lesions and using serological tests like rapid serum plate agglutination, tube agglutination, and haemagglutination inhibition tests. The diseased birds should be destroyed and egg transmission can be prevented by dipping the eggs in antibiotic solutions like tylosin and erythromycin, before hatching.

The other species M. synoviae causes infectious synovitis in chicken and turkey poults. It is characterized by swollen joints, bursitis and splenomegaly and more common in young birds of 4-12 weeks of age than adults. M. melagridis is responsible for air sacculitis in turkeys. Since turkey farming is coming up in India, it is necessary to look for these organisms. M. gallinarum is isolated from respiratory tract of chicken and turkeys of all age. On experimental inoculation, the organism causes air sacculitis

Posted Date: 9/19/2012 2:04:15 AM | Location : United States

Related Discussions:- Mycoplasmosis-poultry, Assignment Help, Ask Question on Mycoplasmosis-poultry, Get Answer, Expert's Help, Mycoplasmosis-poultry Discussions

Write discussion on Mycoplasmosis-poultry
Your posts are moderated
Related Questions
what the importance of phylla protozoa

Q. What are the three types of germ layers that form tissues and organs in animals? The three germ layers are the mesoderm, the ectoderm and the endoderm.

The goals of biological classification The world of animal diversity is quite complex and it requires an ability to recognise similarities and differences among organisms. Class

Nervou s System It is controling system of body. Ectodermal in origin. This system is made up of nervous tissue. Nervous tissue is made up of neuron & neuroglial

Q. Percentage ratio of ash in honey? Standards allow ash content in honey up to 0.5 per cent, but the ash of genuine honey seldom exceeds 0.35 per cent. It is determined by cha

PSYCHEDELI C DRUGS (HALLUCINOGENS) - They act mainly on CNS and greatly alter one's thoughts, feelings and perceptions, called psychedelic drugs. They cause optical or a

Explain Fossn Ovalis Defect (Ostium Secundum Defect) ? This is the most common type of atrial septal defect. The usual approach is through a midline incision and median sterno

Blunt Injury Closed penumothorax  Tension pneumothorax  Tracheobronchial injury  Fracture ribs and flail chest  Mediastinal injury

DEALCOHOLISM - Treatment of alcoholism or withdrawal symptoms of alcohol is known as dealcoholism. Recovery from alcohol dependence is greatly aided by sociobehavioural c

Photometer Photometer (Figure shown below) measures the intensity of light. The metallic plate A is a photocell which emits electrons from its surface when light of sufficient