The lower part of the hoof is shiny because I applied a hoof sealant in an attempt to keep any bacteria out of the crack. We have had lots of rain and therefore have lots of mud in the pasture, so I thought a little extra protection was a good thing.
Rhio's latest farrier visit and our hoof crack/defect is nearly grown out at the heel. We are hoping that when it hits ground level, the unaffected part at the heel stays intact while only the damaged hoof crumbles away. It's really a wait-and-see right now. The new hoof growing down from the coronary band looks perfect - but it is bulging out above the crack so that's another thing to keep an eye on.