... because sheep have only twomammary glands, dilution effects due to the mixing of milk with high SCC from an infected gland, and mi lk with low SCC from a healthy gland, will be relativelysmall at ... 103cells/mL) for thewhole data , 253 for the bacteria ne gative, and 1,082 for the bacteria positive. Although ranges of SCC for unin-fected and infected animals were similar, the arithmeticmean SCC for ... therefore a dilution effect due to the mix-ing of m ilk with high SCC coming from infected glands and milk with low SCC from a healthy gland has to beconsidered.Phenotypic, genetic, and environmental...