The examination of cow's milk for the detection of pathogenic properties / by Sheridan Delépine.

  • Delépine, Sheridan, 1855-1921.
Date:
[between 1890 and 1899]
Catalogue details

Licence: Public Domain Mark

Credit: The examination of cow's milk for the detection of pathogenic properties / by Sheridan Delépine. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    3- It is important to remember, in interpreting these results, that (i) all these cows were, with the exception of one, suspected of tuber- culosis, (2) most of them were in an advanced state of tuberculosis, and (3) only seven of them had apparently healthy udders, and of the remainder ten had certainly diseased udders. It was intentionally that such a number of diseased cows had been selected, and it would not be correct to assume that the results obtained represent an average state of things ; this being well understood the results may now be analysed. 4. The first question which suggests itself is, JV/iat relation is there betiveen the state of the udder and the pathogenic properties of the milk ? The results of inoculations will I think show that, generally speaking, the milk from diseased udders was the only one capable of producing tuberculosis, but that with regard to common septic lesions the difference between the milk from diseased and healthy udders was not very striking ; this will be shown by the following tables: Pathogenic Properties of Milk from Diseased and Healthy Udders. Milk from Udders. Producing Tuber- culosis. Producing marked IrriiatioJt. Producing no marked Irritation. Actual No. 0 Percentages. Actual No. Percetttages. Actual No. Percetttages. A. Certainly diseased B. Probably diseased C. Healthy Total . 10 9 5 0 0 X 2 30-0^ 22*2 j 40'0 25-30 40'o 3 20'0] 66-6 r J 6o'o 42-08 60-0 24 6 7 11 Pathogenic Properties of Non-tuberculous Milk from Diseased and HealtJiy Udders. Milk from Udders. Producing marked Irritation. Producing no tnarked Irritation. Actual No. Percetttages. Actual No. Percentages. A. Certainly diseased B. Probaljly diseased C. Healthy Total 5 60-o 25-0 40*0 |38-S 40'o 3 46-0 75-0 60-o 1 |6r6 600 18 7