Why are fighting dogs soaped ?

Hello, 

I've just re-watched The Wire again; In the horrible dog fighting episode (series 3) the dog is covered in soap before the fight begins; I can't find a reason on Google: is it simply to prevent infection or is there another reason?

Thank you.

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yokozuna6 years ago
According to a Humane Society report, it's to wash out possible poisons and toxins that owners may have put in the fur to improve their dog's chances in the fight.
wheelerjp506 years ago
I think that in that particular episode it was to poison the other dog. He was broken up about shooting the dog when it wasnt the dogs fault it lost.
NachoMahma6 years ago
. Are you sure that it is soap and not slobber?