  Earlier de Sabbata and Gasperini have shown that neutrinos oscillation which
gives them a mass can be induced by torsion. More recently Enqvist et al have
shown that it is possible to use massive neutrinos BBN magnetic fields to seed
galactic magnetic fields. Thus based on these previous investigations we
present several examples of how obtaining cosmological magnetic seed fields as
galactic magnetic fields from massive neutrino densities and also from the
torsion obtained by Nitsch as $T\approx{10^{-24}s^{-1}}$ at the present day
which yields magnetic seed field of the order of $B_{seed}\approx{10^{-12}G}$.
In the case we use torsion derived from massive neutrinos given by
$T_{\nu}\approx{10^{-26}s^{-1}}$ one obtains in BBN time $t\approx{1s}$ with
the primordial nucleosynthesis magnetic field given by
$B_{BBN}\approx{10^{11}G}$ a relic magnetic field $B_{c}\approx{10^{39}G}$
which shows that the result obtained by Enqvist et al for the cosmological
fields at the early universe. Galactic dynamo seed could be obtained from
neutrinos at recombination. It is also shown that in the approximation of weak
fields torsion can slow down the decay of magnetic fields which confirms
previous results. At Planck era where the time is $t\sim{10^{-43}s}$ and
$B_{Pl}\sim{10^{58}G}$ the use of formula with the strongest torsion
$10^{-19}G$this yields $B_{seed}\sim{10^{-4}G}$ is a too strong field to
warrant a galactic dynamo seed.
