The ITA Airways pet policy is as follows:
Pets are allowed in the cabin and in the hold.
Pets allowed in the cabin: Dogs, cats, ferrets, and canaries.
Carriers can transport up to five animals of the same species, on the condition that the total weight of the animals does not exceed 8 kg, and a weight of 10 kg including any food and the carrier itself.
No pets can travel to the United Kingdom.
More information on the ITA Airways pet policy