janet,
the U of Iowa Hybridoma Bank sells many of the collagen antibodies.
they are all monoclonals and have worked on human, rat, rabbit and sheep
for me, i don't know if they will work on swine but they seem to mostly
be anti-collagen and not species specific, the Hybridoma Bank is very
helpful and will tell you if they work on swine or not, they will also
put you in contact with the investigator who developed the clone.
patsy