Advantages of sterilizing/neutering Prices The reasons...? Contact telephone no.: 34 915 437 390 ANAA conducts a permanent campaign for the sterilizing/neutering of domestic pets at very low cost. Sterilizing your pet will bring many advantages. You avoid adding to the number of pets abandoned, and are helping to reduce over-population… Have your pet sterilized/neutered! It’s best for all concerned!