There is no substitute for good shepherding and sound stockmanship.
Absolutely!
Thats a rather 'catch all' statement too...
For example: People used to think of routinely foot-trimming their entire flock as 'good shepherding' - but now it has been shown that this can lead to further incidences of foot problems as it provides a way for disease to enter and now it is generally accepted that one only trims (and in my case, culls
) a sheep with footrot, ergo, routine foot trimming is quite poor shepherding.
The main criteria of 'easy care' breeds and systems as I can see it are: Rigorous culling for genetic faults (especially in cases where the sheep would die if it was not helped by the shepherd, one acts as 'natural selection'), all sheep must lamb outside, unaided and must not need feeding (under normal circumstances). You could extend this to selecting only the females with the highest natural worm ristance/wt/heat of lamb reared to breed from and so on.
But I believe the OP really was referring to the "Easy Care" breed of sheep...