The levels of anaerobic butyric acid producing sporeforming bacteria (BAB) in bulk tank raw milk from similarly managed conventional dairy farms were studied. It is important to control and minimize BAB spores in raw milk to prevent late-blowing defect in certain styles of cheese during aging. Different farm management practices such as bedding type used, cleaning agents and udder clipping frequency may affect BAB spore concentrations. Here we employed statistical models to test the relationship between farm-level factors and BAB spore concentrations. No significant association between management practices and BAB spore concentration was found, with one possible reason being the small sample size used here. The minimum number of individual samples required was calculated using parameters from this study, demonstrating how this research can be used for future study design.