Mine woof down there grain like there starving ( yes they are regularly wormed with diff types of wormer to cover all possiblity of any worms)
They don't show there ribs at all anytime of the year.
I only feed them hay in winter, otherwise they graze on 3 different rotational fields( 6acres total)they don't even put a dent in keeping it ate down( I would probably need 6 more to really keep it mowed down but even then probably not b/c there not sheep