I want to extract DNA from mice fecal samples for the pathogen detection. for that, I want to ensure there is a DNA in that sample by using housekeeping gene's primers. if you have any ideas regarding that, please share that.
I could not completely comprehend your question and why you want to do that. In fecal sample, there would not be just pathogen but whole lot of taxonomic and organismal variations. And to know about if there is DNA or not, this you can know anyway whether you have marker/house keeping gene or not. That would be the fifrst step before moving to the PCR, don't you think so?