Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for London, City of ]
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Also, on Oct. 10th, six cows were sold to a dealer, whilst on October 17th another cow
was slaughtered owing to her being unthrifty. Consequently, as there is some doubt as
to whether the diseased cow is still in the herd, I wonder if you would like me to send you
(or have tested) another bulk sample, so if the two samples I have sent away prove negative,
we shall know about the same time whether the herd is still giving tubercular milk or not.
The examination of the samples from the two suspected cows shows :—
No. 1. G.P. showed no lesions.
No. 2. The guinea.pig inoculated with this milk showed tubercular lesions of spleen,
but not glandular involvement. This may be due to a pre.existing disease of the pig.
Further samples are to be taken from cow No. 2.
For purposes of comparison the following summary of results, obtained since the examination of milk on arriving in the City was first considered in 1904, is here inserted.
Year. | Percentage showing Tuberculous Infection. | Year. 1921 | Percentage showing Tuberculous Infection. | ||
---|---|---|---|---|---|
1904 | 7.7 per cent. | 24.2 per cent. | 1st Series. | ||
1905 | 9.1 „ | „ | 26.3 „ „ | 2nd Series. | |
1906 | 8.0 „ | „ | 12.5 „ „ | 3rd Series. | |
1907 | 8.3 „ | „ | 1922 | 9.5 „ „ | |
1909 | 12.5 „ | „ 1st Series. | 1923 | 2.6 „ ,, | |
4.7 „ | ,, 2nd Series. | 1924 | 12.8 „ „ | ||
1910 | 6.25 ,, | „ | 1925 | 2.4 „ „ | 1st Series. |
1912 | 6.6 „ | „ | 2.4 „ „ | 2nd Series. | |
1913 | 10.4 „ | „ | 1926 | - | |
1914 | 10.2 „ | „ | 1927 | 4.88 „ „ | |
1915 | 8.5 ,, | „ | 1928 | 8.3 „ „ | |
1917 | 4.2 „ | „ | 1929 | 5.1 „ „ | |
1919 | 14.8 „ | „ | 1930 | 4.2 „ „ |
The chemical examination showed that, with two exceptions, the samples were samples of genuine
milk. In one case the sample was found to be deficient in fat to the extent of 17 per cent., and proceedings
were instituted against the consignor. The case was dismissed under the Probation of
Offenders Act, with three guineas costs against the defendant. The other case showed 2 per cent.
of extraneous water. A further sample was taken, which proved to be of genuine milk.
MEAT INSPECTION.
The report under this heading has been prepared by your Veterinary Officer, Lt..Colonel
T. Dunlop Young.
According to the Board of Trade Returns, the imports of meat and bacon for the year ending 31st December, 1930, were as follows :—
Beef. Cwts. | Mutton. Cwts. | Pork. Cwts. | Bacon. Cwts. | |
---|---|---|---|---|
United States | 52,892 | — | 108,454 | 478,342 |
Uruguay | 1,142,601 | 422,668 | — | — |
Argentina | 8,465,018 | 1,452,411 | 74,109 | — |
Australia | 805,938 | 811,266 | — | — |
New Zealand | 305,506 | 3,293,430 | 136,945 | — |
Sweden | — | — | — | 550,692 |
Denmark | — | — | — | 6,117,866 |
Netherlands | — | — | — | 842,848 |
Irish Free State | — | — | 289,315 — | 330,679 |
Canada | — | — | 99,122 | |
Other Countries | 844,948 | 426,073 | 32,384 | 770,208 |
Total, 1930 | 11,616,903 | 6,405,848 | 641,207 | 9,189,757 |
„ 1929 | 11,714,976 | 5,653,925 | 593,539 | 8,278,121 |
LIVE STOCK FOR THE TWELVE MONTHS, 1930. | ||||
Cattle. No. | Sheep. No. | Pigs. No. | ||
Irish Free State | 834,962 | 567,192 | 414,587 | |
Canada | 5,193 | — | — | |
Other Countries | 406 | — | — |
Beef.—The figures show a decrease of 98,073 cwts., compared with the previous twelve
months ; 78 per cent. of the total was chilled and 21 per cent. frozen. Argentina sent
72 per cent., Uruguay 10 per cent., Other Countries 7 per cent., Australia 7 per cent. and
New Zealand 2 per cent. The U.S.A. a negligible quantity.
The imports of tinned and canned beef, extracts, etc., including tongues, weighed over
1,000,000 cwts.