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Biological Testing of Milk.
As mentioned in last year's report the success of the scheme for the
eradication of tubercle in cattle in the county no longer justifies the routine
biological examination of milk except in the case of raw T.T. milk. All the
3 farms in the district produce T.T. milk but this is subjected to heat treatment
before sale to the public.
Milk and Dairies (General) Regulations, 1959—Regulations 18 to 20.
No action was called for under Part VII of the Milk and Dairies
(General) Regulations, 1959, which empowers the Medical Officer of Health
to examine persons handling milk or milk receptacles who are suspected of
being infectious or to suspend from work workers found to be infectious or
to deal appropriately with any milk supply, where there is evidence of its
being the cause of disease or reasonable grounds for believing that it is.
Qualitative Analysis.
The number of samples of milk submitted to the Public Analyst for
qualitative analysis was 173. Of these 29 were "Channel Islands" milk in
which the cream content must be not less than 4% instead of the usual legal
limit of 3 % for ordinary milk. Three were slightly deficient in non-fatty
solids.
The average fat and non-fatty solids of the "Channel Islands" samples
was 4.35% and 8.94% respectively; that of the remaining 144 samples 3.52 /J
and 8.62%.
Ice Cream
Although the hygienic standard of locally sold ice cream, as judged by
the results of bacteriological examination, had been steadily improving in
recent years, 1958 was the first year in which all the samples examined conformed
to the highest grade. This satisfactory experience was repeated
during the year under review, when all 87 samples passed the test of Grade
I. The record of these samples since the inception of this system of bacteriological
grading in 1947 is as follows:—
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