No, saliva staining isn't why blue (and bad blacks) have brown muzzles prior to fading/clearing. I know that because it's a characteristic seen in places where no saliva would have affected their coat. It probably just has something to do with the strength of the color of the coat and how it visually appears. Not quite black, but hasn't faded out yet. It's why blues and some poor blacks have a brown hue to their entire coat prior to fading.
Saliva staining will turn coat brown/orange, but it's different from an entirely brown muzzle that you'll see on a blue puppy or on blacks who will fade out to be poor in color. It would only occur where saliva or other bodily fluids have stained the coat.
Actually I think you may be seeing oxidation of the true color of the dog from having water on their muzzles and being in daylight with UV radiation discoloring the coat. For Javelin particularly when his muzzle needs a clip he looks a little reddish brown around the end of his entire snoot near his nose. Once clipped down he is all black again.
What Lily describes is similar to the saliva staining, but not the same as the brown muzzles that blue and black puppies who will fade have. In a litter of puppies, the blues and blacks who will fade to an off black color generally have brownish muzzles where the true blacks have black muzzles.
I've attempted to type up this post many times in the last year and a half as it's a consistent problem me and Zael have been having.
Welp, I finally feel peeved enough to post it... 'cause I need a wee rant. I also have to know if this is a universal poodle owner problem or if I just live in a...
Galen is thrilled to be (almost) a big dog now. He can run up and down stairs (almost always) without tumbling down them. He can (almost) keep up with Pogo when running. He can (almost) see what's on the kitchen counter when he puts his front paws up n the edge.
Alas, nobody told him that...
Do you know what I mean? Those moments when the training just "clicks" or an aloof pup initiates a snuggle. Or when a picky eater gobbles up dinner and then *gasp* asks for more.
Peggy just put herself in her crate for a nap and I'd be doing a happy dance right about now if I weren't so afraid...
Am I nuts to get a 8 month old poodle pup at age 71? I've had dogs all my life--but this is the first time I can actually be at home to work with and train a dog. I wouldn't get a young dog before (we always adopted older dogs) because of family work obligations. Can I do it?