Piet schreef op maandag 1 mei 2006, 16:07:
> Frans Veldman schreef op maandag 1 mei 2006, 15:43:
> 
>> Piet schreef op maandag 1 mei 2006, 15:26: 

> Ok,  ik  volg  de  discussie, als  er  feiten naar  boven komen
 >  sla  ik terug  :)
 > piet
 > nah' tuurlijk Natuurlijk
Nog  een menig  die  de  jouwe  aardig  onderstreept  denk ik  Frans.
From "Equine Clinical Nutrition" Lon D.Lewis
"Ascorbic Acid (Vit C) is synthesized from glucose in the liver of 
all animals except - man, several primates, Indian fruit bat, guinea 
pigs and a few birds, fish and invertebrates."
"For other species it is not an essential dietary nutrient, however 
it is physiologically essential for all species".
Horses do not need Vit C in their diet, however it has been shown, 
in some species, that some stressful conditions might increase the 
requirement for ascorbic acid beyond the animal's ability to 
synthesize it and although it has not been demonstrated in the horse 
this does not say it can't happen.
"Ascorbyl palmitate is the prefered ascorbic acid oral supplement 
for the horse."
The last quote is "However, remember that Vit C supplementation to 
the horse under any conditions has not been shown, even in an 
individual, to be of benefit, and although some studies in other 
species under certain circumstances suggest a benefit, other studies 
suggest harm from Vit C supplementation."
Vitamin C is certainly involved in collagen production and many of 
the signs of Vit C deficiency reflect a lack of normal collagen - in 
the species that require it in their diet.
In my opinion, Vit C deficiency is very unlikely to be involved in 
the development of laminitis.  In the stressed horse with laminitis 
it could theoretically possibly be of benefit.
piet
nah' tuurlijk Natuurlijk