What was the primary source of the Tokugawa shoguns in issuing their edict of 1635

Explanation:

In
the
1630s,
the
Tokugawa
shogunate
took
a
series
of
steps
to
further
restrict
Japan’s
international
contacts.
By  

1639,
the
Dutch
were
the
only
Europeans
permitted
to
come
to
Japan,
and
the
conditions
under
which
they
were  

allowed  to  trade  and  interact  with  Japanese  were  extremely  circumscribed  by  the  Tokugawa  authorities.  The  

following
edict
of
1635
was
issued
by
the
shogunate
to
the
officials
administering
the
busy
port
of
Nagasaki,
the  

site
of
most
of
Japan’s
foreign
contacts
at
the
time.

answer; the correct answer to the above statement is to increase the production of milk in a herd of milk cows, the highest producing cows were chosen as the mother;