Case Number 1.  Equine - Foal with contracted tendons

This foal suffered from Severe "Jing Deficiency".    You are     
born with only a certain amount of Jing.  Jing is the primary
Qi that is needed to start all the organ systems.   I once heard
an anology that "Jing" is like a savings account.  You can to the
account, a little at a time, but the substantial "deposit" was
the initial one.  You can unfortunately widdle away at the amount
of Jing you have.  So, it is imperative to save, or conserve your
Jing that you are born with, and try to replenish it as you go on.