whisper
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Production and growth related disorders and other metabolic diseases of poultry
Richard J. Julian
Abstract
In humans, metabolic complaints may be associated with a failure in one of the body hormone or enzyme systems, a storage
disease related to lack of metabolism of secretory products because of the lack of production of a specific enzyme, or the breakdown
or reduced activity of some metabolic function. Some of these disorders also occur in poultry, as do other important conditions such
as those associated with increased metabolism, rapid growth or high egg production that result in the failure of a body system
because of the increased work-load on an organ or system. These make up the largest group of poultry diseases classified as
metabolic disorders and cause more economic loss than infectious agents.
Poultry metabolic diseases occur primarily in two body systems: (1) cardiovascular ailments, which in broiler chickens and
turkeys are responsible for a major portion of the flock mortality; (2) musculoskeletal disorders, which account for less mortality,
but in broilers and turkeys slow down growth (thereby reducing profit), and cause lameness, which remains a major welfare concern.
In addition, conditions such as osteoporosis and hypocalcaemia in table-egg chickens reduce egg production and can kill.
Pages:20
[thanks-thanks]pdf,294KB,http://www.mediafire.com/?uterbw133wmfb7p[/thanks-thanks]
Richard J. Julian
Abstract
In humans, metabolic complaints may be associated with a failure in one of the body hormone or enzyme systems, a storage
disease related to lack of metabolism of secretory products because of the lack of production of a specific enzyme, or the breakdown
or reduced activity of some metabolic function. Some of these disorders also occur in poultry, as do other important conditions such
as those associated with increased metabolism, rapid growth or high egg production that result in the failure of a body system
because of the increased work-load on an organ or system. These make up the largest group of poultry diseases classified as
metabolic disorders and cause more economic loss than infectious agents.
Poultry metabolic diseases occur primarily in two body systems: (1) cardiovascular ailments, which in broiler chickens and
turkeys are responsible for a major portion of the flock mortality; (2) musculoskeletal disorders, which account for less mortality,
but in broilers and turkeys slow down growth (thereby reducing profit), and cause lameness, which remains a major welfare concern.
In addition, conditions such as osteoporosis and hypocalcaemia in table-egg chickens reduce egg production and can kill.
Pages:20
[thanks-thanks]pdf,294KB,http://www.mediafire.com/?uterbw133wmfb7p[/thanks-thanks]
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