Re: indelible keratin staining

From:Aidan Schurr <>

Silver nitrate solution would work well (reduce it with formalin probably).  Anything would be prone to wearing off over time though, so maybe you would need something that would soak in a bit?  Just a thought...

I could make some jokes about you Aussies and your sheep, but that would just be too easy!! (and they'd probably come straight back at me!) 


New Zealand


aidan schurr
section head, histology
hutt valley district health board
lower hutt
new zealand
++64 4 570 9173

>>> "Dalefield, Rosalind" <> 2/08/2001 >>>

Can anyone suggest something that will permanently stain keratin?

This is actually for keratin in the living animal; I want to mark the (light
colored) hooves of Merino sheep so I can track rate of hoof growth. But I
figured Histonetters would have some good ideas...what stains just won't
come off your fingernails!?

Thanks in advance,

Rosalind Dalefield BVSc PhD DABVT DABT
Senior Research Scientist, Toxicology
Plant Toxins Unit
5 Portarlington Rd
Private Bag 24
VIC 3220

Phone 61 3 5227 5730

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