Homologous immunoglobulin is the
(from the same species)
. In case of inoculation
animals as in veterinary
homologous immunoglobulin is that
the blood of animals the same
species of animal undergoing
treatment. Heterologous
is that obtained from
different species from the
into which it will
inoculated.

The homologous immunoglobulin
safer since it is from beings of
the species of the individual
which it will be and thus the
risk the antibodies to be
as foreign and to an immune
response is . Heterologous
immunoglobulins are more to
being destroyed by own antibodies
of the .