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Metabolic and nutritional diseases in poultry
Deficiencies or disturbances of nutrition cause a variety of diseases and can arise in different ways. The amount of a particular nutrient in the diet may be insufficient to meet the requirements, the diet may contain substances that inactivate the nutrient or inhibit its absorption/utilisation, or metabolism may be upset by the interaction of dietary and environmental factors. Peroxidation of lipids or oxygen free radical generation in general is a physiological process important for cell metabolism, division and differentiation and also for the biosynthesis of hormones and prostaglandins. Several common health conditions can affect poultry, including visceral gout, fatty liver syndrome, cloacal prolapse, osteomalacia, vitamin E deficiency, and ascites syndrome. Understanding these conditions and implementing appropriate management strategies can help prevent and treat them effectively.
The microbial agents causing a number of intestinal diseases in young broilers have not yet been identified and such conditions are often called “viral enteritis” (Anonymous, 2008). However, agents causing similar signs in young birds have been reported around the world and have been called runting stunting syndrome (RSS), malabsorption syndrome, brittle bone disease, infectious proventriculitis, helicopter disease and pale bird syndrome (Rebel et al., 2006). Runting-stunting syndrome...
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A global shortage of feed phosphate has forced producers to review dietary levels. But care is needed when making changes, as Aviagen's Anthony Waller explains. Suppliers of feed phosphates announced around Christmas 2007 that supplies of phosphates would be insufficient to meet orders from the animal feed industry. In some cases only 30% of ordered tonnage was supplied. This had a serious impact upon poultry feed manufacturers and producers, in terms of ability to supply stock...
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