The rate of survival will be a lot lower if you don't make an effort to care for one or both of them, depending on which the cow will accept more readily and if she can produce enough milk to feed both of them. Usually it's best to let the cow have one calf while you bottle-feed the other or put him on a surrogate cow that can care for him without the added work necessary from you.
Red deer usually have about 2-3 calves but twins are very rare.
No. Only a heifer calf twinned to a bull calf will be infertile, not twin heifer calves.
Neither. Both calves will be fertile. You will only get a sterile female calf if she's born to a twin bull brother.
Usually around 2 years old. Some a little younger and some a little older. Older is better for the cow and the survival rate of the calf.
Portside had the most survival rate
It's rare, but possible, yes.
Recent studies show that the survival rate of infant dolphins in the wild is 75%. In zoos and in aquariums, the survival rate is 86%.
The infant survival rate following prenatal treatment for TTTS is about 70%. Since TTTS is a progressive disorder, early intervention may prevent later complications.
I would suggest around a 40 - 50% survival rate from seedlings
picture of nasal cancer outside-how does it look and what is the survival rate
Dual Survival - 2010 Twin Peaks 3-6 was released on: USA: 5 February 2013
an indication is the survival rate; for POW camps (for western POWs) the survival rate was about 96%, for the Holocaust the survival rate was less than 4%.