Final answer:
A good somatic cell count (SCC) in milk is below 200,000 cells per milliliter. The legal SCC limit to sell milk is 750,000. Clinical mastitis leads to an increase in SCC above 500,000.
Step-by-step explanation:
A good somatic cell count (SCC) in milk is generally considered to be below 200,000 cells per milliliter. The legal SCC limit to sell milk varies by country, but in the United States, the limit is 750,000 SCC. Clinical mastitis, which is an infection of the udder, can lead to an increase in SCC. The expected SCC with clinical mastitis is generally above 500,000 cells per milliliter.