These are cows, not someone's wife or child. It's not a medical "treatment."  The "yahoo farmers" (oh, the condescension) weren't treating human beings or even cows for cancer. Why bring up breast cancer - and presume that's what the poster referenced - when all we're talking about is inseminating cattle?

Farmers don't have the luxury of calling a veterinarian every time they need to treat their animals, by the way. Perhaps you should watch a few episodes of Dr. Pol. 

I and family members have had numerous ultrasounds for various reasons and never have I had a tech who would give an opinion on what they saw on the screen...never.

Ultrasound techs don't do cancer diagnoses.  They are not doctors.

For someone trying so hard you would think they knew the difference between a tech and a radiologist I and family members have had numerous ultrasounds for various reasons and never have I had a tech who would give an opinion on what they saw on the screen...never.