I could go on forever about the state of many pedigree dogs but that's one for another thread. I've said enough lolx100!!! @3KillerBs and @Shadrach
And yes, there are trained, expert nutritionists who have developed livestock feeds, and pet foods! Reinventing the wheel with little actual knowledge of what's needed for each species in different circumstances is not helpful.
And here in the USA, where almost nobody actually produces the food we all eat, people buy into food fads, advertising, and act like it all grows in packages at the grocery store.
I totally agree about animals developed who have genetics that make for miserable lives, like Cornishx chickens. And don't leave out pets who are selected for deformities some people think are 'cute'.
Mary