The quote below from Phoebe Burdg of San Martin, California was featured in the Tricentennial Report, published in 1977. Phoebe describes animals of 2076 that will of course be mechanical.
The only live animals are these necessary to provide meat. Any others are expertly mechanized duplicates of the real thing, as depicted in the many museums around the world . . . .They are manufactured on demand. A family may have an animal dependent on their ability to give credits for it.