Nope!
with the aim of their releasing search and rescue dog teams, seeing as these are specially trained to find missing persons, which is not the case with the Portimao sniffer dogs, which are essentially patrol dogs.
Search and resuce dogs track the generic human scent, not the individual and unique one.
The dogs were given her pink blanket on the bed. I think that would have her unique scent on.
After the officers had been updated about facts relating to the disappearance, they tried to reconstruct the route the girl might have taken with the two tracker dogs. For this purpose the dogs were given a blanket to sniff, provided by the parents, which had been used by Madeleine.
Beginning to follow the track using Rex, from the door of apartment 5 A (the place where the girl had been sleeping) he would always head in the direction of Block 4, leaving block 5 the dog would turn to the left, pass by a metal access door to a path existing between the apartments blocks to the leisure area (restaurant, pool and playground). Immediately another attempt at reconstruction was made using the dog Zarus, who, in general terms, ended up following the same route as Rex and having the same behaviour.
http://www.mccannpjfiles.co.uk/PJ/GNR_SNIFFER.htmThey arrived at the apartment around 5:40PM, earlier than usual, because Madeleine was tired, their other friends were at the beach and Gerry had an all-male tennis game at 6:00PM. They entered the apartment by the main door, with the key.
http://www.mccannpjfiles.co.uk/PJ/KATE-MCCANN_ARGUIDO.htm