That's just nonsense with zero supporting evidence. In fact, quite the contrary. Genetic evidence indicates that the current West African epidemic had a SINGLE animal to human jump - the first case. All other cases have been human to human.
THIS outbreak came from a single bite from a bat.
However ebola circulates through various animal populations without killing them.
Rodents, pigs, bats, dogs and more.
Pubmed is full of examples of these animals being used in lab experiments.
This one is particularly relevant:
http://www.thefreelibrary.com/Ebola+virus+antibody+prevalence+in+dogs+and+human+risk.-a0131127452