WHITE SPAY

Question
HI MY PREGENT GUINEA PIG LIVES ON HER OWN SO I PUT HER FRIEND WITH HER BUT SHE GETS STRESSED AND SHE SPAYS A WHITE SPAY AT HER FRIEND IT WAS FROM HER BOTTEM AND WELL I WANT TO KNWO WHAT THE WHITE SPAY IS.:FROM KATHLEEN

Answer
Hello, to be honest I don't know the answer to this question.  I didn't know off-hand, so I tried to find the answer online, but I couldn't find it.  I'm sorry that I couldn't be of any help.  

If I had to guess, I would say that it is urine.  Guinea pig urine is often a milky white, so I would have to guess that.