Know you guinea pig, know your poo
My piggies' poo has been normal with a dull finish (once dry) forever. Just recently some of it is a bit darker and has a shiny finish (even dry). There are seven pigs together, and not everyone's is shiny; from the proportions of poo, it is probably one or two of them.
Is shiny poo OK? They all act normal and their diet has not changed.
Is shiny poo OK? They all act normal and their diet has not changed.