The tests considered in this work were applied to 1812 samples of milk taken from 54 cows. The tests showed a much more frequent occurrence of abnormal milk than was expected. Be- fore the experiment was started very few noticeable indications of garget or mastitis were detected by the milkers and herdsman. The study herein reported deals with the occurrence of abnormal milk in the college dairy herd and a comparison of the results of various tests including the brom thymol blue test, the catalase test, the leucocyte count and the examination for long-chain streptococci.
mastitis detection, dairy herd mastitis detection
South Dakota Experiment Station, South Dakota State College of Agriculture and Mechanical Arts
Jacobsen, J.H. and Olson, T.M., "The Detection of Mastitis in Dairy Herds" (1935). Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011). 290.