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Toggle Health Problems and D

Veterinary and D

Most animals need vitamin D, many make it in their fur and feathers
Multiple select
Govt recommends 318 IU, vets give 2650 IU to 45Kg calf see wiki page with similar name, also see chart in this Gallery
2008 from file in this same gallery
see also with similar name: File in this Gallery and wiki page
1999 stale hay has far less vitamin D
from web Feb 2010
clipped from internet 2009
from 1933 publication
2008?
Birds have see with 4 cones - one of which is UV chart included
One reason appears to be getting vitamin D from their fur
Holick