Changes

Luthersson N, Nielsen KH, Harris P, Parkin TD.

Luthersson N, Nielsen KH, Harris P, Parkin TD.

  CONCLUSION AND POTENTIAL RELEVANCE: This study has confirmed that components of the diet, readily modifiable, may have an important impact on the risk of EGUS in the nonracehorse.  

  CONCLUSION AND POTENTIAL RELEVANCE: This study has confirmed that components of the diet, readily modifiable, may have an important impact on the risk of EGUS in the nonracehorse.  

Significant factors for the development of gastric ulceration included the feeding of concentrates and faster exercise (Vatistas 1998). In addition, withholding feed before exercise was a modifying factor that, although not causing gastric ulceration, may have decreased time of onset.(Vatistas 2 1999) Murray determined that alternately withholding feed for 24 h followed by feeding for 24 h induced ulceration of the squamous mucosa that appeared endoscopically similar to naturally occurring ulcers (Murray 1994). However, such a severe form of feed deprivation does not occur in horses in training, in which horses may be fasted for 4 h before training exercise, although the period of feed withdrawal may be longer prior to a race. The results of our study tend to support the concept from other studies that feed deprivation is not necessary for the development of gastric ulceration (Vatistas 1998). The stabling of horses from pasture has been documented to increase the severity of gastric ulceration (Murray and Eichorn, 1996). All horses in the present study were stabled and this may have had some influence on the development of gastric ulceration. Evidence for the role grain is predominantly anecdotal, but there has been one study that demonstrated an increased prevalence of gastric ulceration in ponies fed a concentrate diet compared to ponies fed hay alone The results of our study suggest that, rather than training itself, the most stressful event may have been when horses entered their new environment..(Vatistas 2 1999)

Significant factors for the development of gastric ulceration included the feeding of concentrates (Vatistas 1998). In addition, withholding feed before exercise was a modifying factor that, although not causing gastric ulceration, may have decreased time of onset.(Vatistas 2 1999) Murray determined that alternately withholding feed for 24 h followed by feeding for 24 h induced ulceration of the squamous mucosa that appeared endoscopically similar to naturally occurring ulcers (Murray 1994). However, such a severe form of feed deprivation does not occur in horses in training, in which horses may be fasted for 4 h before training exercise, although the period of feed withdrawal may be longer prior to a race. The results of our study tend to support the concept from other studies that feed deprivation is not necessary for the development of gastric ulceration (Vatistas 1998). Evidence for the role grain is predominantly anecdotal, but there has been one study that demonstrated an increased prevalence of gastric ulceration in ponies fed a concentrate diet compared to ponies fed hay alone(Vatisats 2 1999)

It seems reasonable to suggest that any condition

It seems reasonable to suggest that any condition that influences food intake might contribute to the development of gastric ulcers in horses.(Sandin 2000)

that influences food intake might contribute to the development

of gastric ulcers in horses.(Sandin 2000)

It has been suggested that a high-grain, low-hay diet would increase the incidence of ulcers (Hammond et al. 1986). In cannulated horses, Nadeau et al. (2000) showed that bromegrass hay produced significantly lower gastric pH and higher frequency of gastric ulcers than did alfalfa hay-grain. Deprivation of feed for repeated periods has also been shown to cause gastric ulcers (Murray 1994a). (Jonssen 2006)

It has been suggested that a high-grain, low-hay diet would increase the incidence of ulcers (Hammond et al. 1986). In cannulated horses, Nadeau et al. (2000) showed that bromegrass hay produced significantly lower gastric pH and higher frequency of gastric ulcers than did alfalfa hay-grain. Deprivation of feed for repeated periods has also been shown to cause gastric ulcers (Murray 1994a). (Jonssen 2006)