Archive for Kamis, 28 Mei 2009

Avian Gout: Causes Treatment And Prevention

Kamis, 28 Mei 2009 42 komentar

Today’s bird is genetically engineered for higher productivity. Selection of birds is based on production parameters. In the process, the health of the vital organs is ignored. This has resulted in increased incidence of metabolic disorders. The kidney is a vital organ of the bird with diverse metabolic and excretory function viz. maintaining the chemical composition of body fluids, removal of metabolic waste and toxic products, regulation of blood pressure and blood volume and conservation of fluids and electrolytes.

Excretion of metabolic waste products is important in poultry and this function is performed by the kidneys. The function of kidneys is affected by a number of specific diseases and disorders. One of the important disorders associated with kidney damage is GOUT. In birds uric acid is the end product of nitrogen metabolism. Uric acid is a nitrogenous waste from protein breakdown. In mammals, it is converted to less harmful substance with the help of the enzyme uricase. But in birds this enzyme is absent. Hence, uric acid is the final excretory product. Uric acid is produced mainly in the liver and is excreted by the kidneys. High blood levels of uric acid favour its precipitation in tissues. Uric acid is not toxic but precipitated crystals can cause mechanical damage to tissues like kidneys, heart, lungs, intestines and also in the joints. These crystals severely damage body tissues. So Gout is a condition in which kidney function decreases to a point where uric acid accumulates in the blood and body fluids. Avian gout is a metabolic condition where abnormal accumulation of white chalky uric acid or urates occurs in soft tissues of various organs of body. Gout is commonly observed in chicken as they are uricotelic and lack the enzyme uricase. In gout, blood levels of uric acid can be as high as 44mg/100ml as compared to 5-7mg/100ml in a normal bird.
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