The product is an animal feed supplement . The method referred is FDA BAM ,2006 for Total Coliform Count .
Thks but regret I do not possess BAM 2006. The methodology used could potentially be either liquid or solid based.
The current on-line BAM Procedure afai can see makes no use of the "classic" terminology "total coliforms" (TC) . ( I have only ever used "coliforms" but TC is certainly still in common use, eg see attachments below).
"coliforms" includes thermotolerant (aka fecal) coliforms and generic E.coli, among others, eg
Coliform Group.pdf 305.23KB
The current online BAM, MPN procedure for "coliforms" looks similar to other reported MPN procedures for "total coliforms", eg -
Methods for total coliforms, thermotolerant coliforms, E.coli.pdf 135.85KB
The terms coliform, total coliform, thermotolerant coliform, fecal coliform are all "operational" definitions rather than taxonomic so this whole area is often semantically (and procedurally) "challenged".
For human food, a coliform limit of 1000cfu/gram seems high but I'm not familiar with animal feed supplements (whatever that means ?)