Guidelines For Unacceptable Values

Derived From BTM Analysis




Standard Plate Count

I. SPC>10,000 CFU/ML

(10-50% of SPC are psycrotrophs)

  1. Errors in cooling milk

  2. Errors in cleaning equipment

  3. Rarely a cause of sub clinical mastitis(especially mastitis caused by Streptococcus spp.)

  4. Unclean udders before milking

  5. Poor teat and teat-end sanitation


Laboratory Pasteurization Count


(May include species of Micrococcus, Microbacterium, Lactobacillus, Bacillus, Clostridium, and occasionally Streptococci)

  1. Unclean Equipment

  2. Improper sanitation practices

  3. Milkstone deposits


Somatic Cell Count

III. SCC>500,000CFU/ML

  1. Infected individuals in heard

Preliminary Incubation Count IV. PIC>10,000 CFU/ML

(Not associated w/mastitis pathogens)

(Gram-negative and Pseudomonas account for 50%)

 (Gram-positive mostly Enterococcus and Streptococcus)

  1. Ineffective cow preparation (teat dip)

  2. Poop milking hygiene

  3. Unsanitary equipment


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