期刊
JOURNAL OF EQUINE VETERINARY SCIENCE
卷 29, 期 5, 页码 259-267出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jevs.2009.04.183
关键词
Obesity; Regional adiposity; Insulin resistance; Laminitis; Insulin
资金
- United States Equestrian Federation
- Grayson Jockey Club Foundation
- Lloyd, Inc. (Shenandoah, IA)
- manufacturer of ThyroL
- McCauley Bros., Inc., Versailles, KY
Equine metabolic syndrome (EMS) is important because of its association with laminitis. Obesity and insulin resistance are two important components of EMS, and the underlying cause of this syndrome is likely to be enhanced metabolic efficiency. Affected horses are often referred to as easy keepers because they require fewer calories to maintain body condition, and enhanced metabolic efficiency is an inherent risk factor for EMS that may be genetically determined. Pony breeds, Morgan horses, and. Paso Finos are predisposed to EMS, but this problem can be prevented through effective management. Overfeeding, abundant pasture grass, and inadequate exercise are risk factors that relate to modern management practices. Obesity and adiposity induce insulin resistance, and recent research suggests that this is the determinant of laminitis susceptibility in ponies. Increased plasma insulin concentrations are detected in most affected horses and ponies, so this serves as a useful screening test for EMS., Physical characteristics also should be examined because horses with EMS exhibit regional adiposity in the form of a cresty neck or abnormal adipose tissue deposits close to the tail-head. All horses with enhanced. metabolic efficiency, obesity, or regional adiposity Should be screened for EMS. The combined intravenous glucose-insulin test can be performed to diagnose insulin resistance in mildly affected horses and. quantify insulin sensitivity. Most horses with EMS can be effectively managed by reducing caloric intake, decreasing the starch and Sugar content of the diet, increasing exercise, and limiting or eliminating access to pasture, but medical therapy is warranted hi select cases.
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