02545naa a2200325 a 450000100080000000500110000800800410001902400360006010000210009624501440011726000090026152016240027065000180189465000140191265000100192665000130193665000170194965000140196665000120198065000120199265000150200465000180201965300150203765300180205265300120207065300300208270000190211270000210213177300670215215220292023-07-18       1981    bl uuuu     u00u1 u    #d7 a10.1017/s0022029900021877.2DOI1 aSHELDRAKE, R. F.  aRelationship of somatic cell count and cell volume analysis of goat's milk to intramammary infection with coagulase-negative staphylococci.  c1981  aAbstract: The prevalence of intramammary infection in 4 commercial goat herds was studied in conjunction with electronic somatic cell count and volume analysis, determined using a Coulter Counter and volume analyser. Neither streptococci nor mycoplasma were isolated from any half and the prevalence of intramammary infection with Staphylococcus aureus ranged from 0 to 3% between herds. For coagulase-negative staphylococci the range for infected halves was 36?71%. There was no significant difference between the mean total microscopic somatic cell count for halves infected with coagulase-negative staphylococci and those free from infection. A similar trend was observed for electronic somatic cell counts although the mean electronic cell count was greater than the mean total microscopic count on the 2 occasions that they were compared. The correlation coefficients between the 2 cell counting methods were 0·86 and 0·94. Between herds there were significant differences in mean electronic somatic cell count, with herd means ranging from 438×103 to 1684×103 cells/ml. In 2 of the 4 herds studied, milk samples from halves infected with coagulase-negative staphylococci had a significantly higher prevalence of cell volume distributions with a modal cell volume between 65 µ3 and 100 µ3. This was attributed to a higher proportion of polymorphonuclear neutrophils. Use of electronic somatic cell count and cell volume analysis were considered of little value in predicting infection caused by coagulase-negative staphylococci as there was a high proportion of false negative and false positive predictions.  aGoat diseases  aGoat milk  aGoats  aMastitis  aMicrobiology  aPregnancy  aCaprino  aDoença  aInfecção  aMicrobiologia  aCell Count  aEstafilococus  aMastite  aStaphylococcal Infections1 aHOARE, R. J. T1 aWOODHOUSE, V. E.  tJournal of Dairy Researchgv. 48, n. 3, p. 393-403, Oct. 1981.