Is Cystine found in say rabbit carcas at as high a rate as in American
ferret kibble?  Generally speaking, are all the amino acids found in mice
and rabbit the same as found in our kibble.  Does cystine and the other
amino acids found in our kibble come purely from the chicken by product?
Or is Cystine, et al, something added to kibble?
 
If the amino acids questioned are added to kibble on top of what's
already found in the chicken meal and chicken by product already in
there, then can this all be "fixed" by simple adjusting the amino acids
added?  Or would we be then inviting a whole host of other problems that
are associated with other amino acids (have we already chosen the less
of two evils)?
 
Wolfy
http://wolfysluv.jacksnet.com
[Posted in FML issue 4756]