Seed management a) Characteristics of the seed An ideal vaccine should contain a strain (or strains) of virus that has been shown to give protection against the wide diversity of anti-genicity that has been demonstrated by BVD virus.
(An ideal vaccine; should contain; a strain (or strains) of virus that has been shown to give protection against the wide diversity of anti-genicity) (a strain (or strains) of virus; has been shown; to give protection against the wide diversity of anti-genicity) (a strain (or strains) of virus; to give; protection against the wide diversity of anti-genicity) (the wide diversity of anti-genicity; has been demonstrated; by BVD virus)
An ideal vaccine a strain (or strains) of virus a strain (or strains) of virus the wide diversity of anti-genicity
should contain has been shown to give has been demonstrated
a strain (or strains) of virus that has been shown to give protection against the wide diversity of anti-genicity
to give protection against the wide diversity of anti-genicity
protection against the wide diversity of anti-genicity
by BVD virus