Hi Magnus and all, Well, actually this was kinda interesting. I have wondered why there seem to be differences in individual animal's calcium needs. Maybe if an animal has a compromised liver or kidneys, there are steps in the process that they have problems with. Thus our calcium supplements aren't as effective for some animals as for others? Any opinions?
Melody Magnus Myklatun wrote: > > Hi > > >I'm not sure why this is, but it may have something to do with the way D3 > >is created and transported. It is created by the synthesis of > >7-dehydrocholesterol in the skin by UV light. This is bound to serum > >protein and transported to the liver where it is finally transformed >into > >the end product, 1,25-DHCC. > > Well, I have to correct myself, 1,25 DHCC is transported and transformed in > the kidneys, not the liver. It does go by the liver, where it is transformed > into 25-hydroxycholecalciferol (25-HCC) and from there is goes to the > kidneys. Sorry about that. > > Also, I belived someone was wondering how long, or how much, exposure to UV > radition reptiles need to produce enough D3. > I came over this research paper stating that a Zoo-Med Iguana Light 5.0 at > 12" would create enough radiation to begin D3 production in less than 1 hour > (20 mJ/cm2). This is a measure of energy received by the skin. The power of > a lamp reaching a target such as skin is measured in � W/cm2. Multiplying > this figure by the time of exposure gives the mJ/cm2 figure. > One more important thing is that it looks like you cannot expose reptiles to > too much UV radation. What I mean by that is that research show animal skin > only can transform 15% of 7-DHC to previtamin D3. This acts as a regulatory > device, making it impossible for an animal to produce too much D3. Ok, since > everyone is sound asleep now, I'll shut up. :) > > Merry Christmas everyone! > > Magnus > > _________________________________________________________________ > Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. > > ########################################################################### > THE GLOBAL GECKO ASSOCIATION LISTSERV > WebSite: www.gekkota.com Archive: [EMAIL PROTECTED]/ > The GGA takes no responsibility for the contents of these postings. > ###########################################################################
