I read this on MS farm pond forum...

Either northern largemouth bass or
Florida largemouth bass are appropriate
for stocking in Mississippi farm ponds,
but it is best not to mix the two.
We do not recommend hybrid largemouth
bass, also known as tiger bass,
gorilla bass, and �F1 hybrids� because
although the original stocked fish may
experience enhanced growth, the offspring
of the original stocking may be poor.
It does not matter whether you stock
regular bluegill or coppernose bluegill.