And herein lies a very broad and «mushy middle,» says McKenna, with the effect, in many cases, being the
same: «It's still using smaller - than - treatment doses, or sub-therapeutic doses
of antibiotics,» which creates a literal
breeding ground for resistant microbial
strains.
All dogs are essentially drawn from the
same genetic
strain, so the different characteristics
of the
breeds are borne
of centuries
of genetic manipulation by dog breeders.