Dead grass is that kind of grass which has been cut off from its roots and then left to die.
It is often fed to many types of animals such as horses and rabbits. It is good for them to chew on.
Dead grass which is left to dry turns into hay, of which there are many types of hay that available for animals to eat.
Yes they can eat dead grass.
They love to eat dead grass as its great for them to chew on, however they love fresh grass more as it has more of the nutrients that they need.
So they can be fed either.
Just a side note, my piggies have never been as keen on dead grass.
They will tend to leave it until they have nothing left to chew on and then they go for it.
For more foods that guinea pigs can and can’t eat, check out our GUINEA PIG FOOD LIST.