Hi my dog just presented with this symptom -- she is approx 1-1/2 years old -- she had hard brown stool last few days and this am -- as if dehydrated or constipated. Though clean water is always readily available. This afternoon she passed a larger amount of stool, clay-colored stool that appeared to be encased like a sausage as described in post above.
I have 2 other dogs and a cat in the home -- one of the other dogs (9 mos old) has had the hard stools for the past few days.
They are on Nutro Ultra Holistic food. Will keep monitoring, as we pick up as they eliminate.