Poultry Diseases Pictures Pdf
This is typical of Gumboro disease. Spread The infection can be spread by drinking water contaminated with discharges from the nose. Removal of infection is the most satisfactory means of control. Note the affected area is now intense red, moist, swollen, and devoid of feathers.
In layers, egg production is temporarily stopped. The chicks breathe with difficulty and death may soon follow.
The atlas provides coloured photographs and covers a wide spectrum of poultry diseases. Dust in poultry houses may contain between one lakh to ten lakhs E. Lack of these vitamins makes poultry more susceptible to worm infections.
The intestinal lining mucosa is covered by a loose to tight yellow or green layer Fig. In chronic cases, changes include arthritis inflammation of the hock and foot joints, and swelling of one or both wattles Fig. Lymphoid leukosis and Marek's disease closely resemble each other in their involvement of liver and other organs.
They show small nodules that are hard and yellow Fig. Keep the litter as dry as possible by frequent stirring. While not a great killer, the disease is of great economic importance. Sometimes widespread haemorrhages are present throughout the bursa Fig. Causes Lack of water, or inadequate supply of water dehydration.
Poultry diseases Chicken Rooster
Note pale liver of a chicken on right receiving ppb aflatoxin in feed. Eggs from pullorum-free flocks should be incubated and hatched only in hatcheries receiving eggs exclusively from clean flocks. Phil Clauer, Virginia Tech. Both in broilers and layers, infection causes poor weight gain and feed efficiency.
In intestinal coccidiosis, the middle portion of the small intestine is usually distended to twice its normal size ballooning and the lumen may be filled with blood Fig. Postmortem Findings In the brain, there are petechial small haemorrhages on the surface of the cerebellum a part of the brain Fig. Such tumours in bursa are absent in Marek's disease. Spots or small patches of blood may occur, but haemorrhage is not a feature.
The close-up picture shows affected spleen on the right and normal spleen on the left. Note the presence of cheesy plaques masses in the larynx and adjacent trachea arrow. In mixed infections, use antibiotics against E.
Carcasses of dead or affected birds should be buried or burnt. Harmful Effects of Aflatoxin I. This is characteristic of Gumboro disease. Aflatoxins can withstand extreme environmental conditions and are very heat stable.
Discard the grains suspected of contamination. They are resistant to environmental extremes and to disinfection.
Use stabilized vitamin A preparation in the feed. Note the bluish tinge indicates the presence of fungus. Note typical posture of the bird. Management can be helpful if proper attention is given to maintaining proper ventilation of chicks.
Note pinpoint haemorrhages in the proventriculus black arrow and one distinct haemorrhagic patch in the small intestine white arrow. Finally, I like to express my profound appreciation to my wife Nita for her patience, and for her faith in me and my task. This is an advanced stage of E. As the virus is easily spread by air, inhaling infected air is the most important means of spread.
This article describes some of the common diseases that afflict poultry, as well as symptoms and indications of different types of disease. For More Information Common poultry diseases. Also, wherever considered appropriate, programming in haskell graham hutton pdf pictures of live birds showing symptoms of specific diseases are given.
Symptoms are usually due to localized infection. In adult birds there is marked drop in egg production for several months. From the characteristic postmortem findings. Note that fibrin deposition on the liver and heart in the right bird is more pronounced compared to the left.
A Color Atlas of Poultry Diseases By J.L Vegad
Almost always egg peritonitis is caused by E. From these characteristic postmortem findings, it is possible to arrive at a correct diagnosis.
Severe infestation may cause obstruction of the intestinal tract. The intestine is distended and filled with a foul-smelling brown fluid.
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