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50
(1) From a Farm in the County of Hertfordshire.
The County Medical Officer for Hertfordshire reported that the
herd of cows "have been examined and, with the exception of three
cows with slight induration of the udder, the herd was in good
condition. Samples of milk from the three cows with induration
of the udder were examined at the Royal Veterinary College Laboratory
but the results have been negative. Since the sample of milk
was obtained by your Inspector four cows from the milk-producing
herd at the farm have been disposed of.''
In these circumstances, a further sample of milk from this farm
was obtained in Walthamstow on 10th October, 1932. This sample
was examined biologically, and was considered to have been free
from tubercle bacilli.
(2) From a Farm in Essex.
The County Council's Veterinary Surgeon reported that there
were no means of tracing any particular animal and in order to
carry out a satisfactory test an examination was made of every
animal on the farm.
"The total number of cows kept was 93 (ninety-three); of this
number five cows (dry) had mammitis in one or more quarters but
showed no clinical evidence of tuberculosis. The farmer does not
purpose keeping these five.
"Three cows have been sold from the farm since the milk
sample was taken and were bought by the slaughterer, viz., September
6, 1932-—1 cow; September 15t.h, 1932—2 cows.
"I do not think it possible to run a dairy farm more strictly
than these farms are managed. Every attention is apparently given
to cleanliness and sanitation and any cow which they are doubtful
of in regard to its health is immediately removed, and there is no
desire to keep any animal except the healthiest.
"I can definitely say that there is not a single cow on the
premises but that I could clinically consider as sound."
In view of the above circumstances, two further samples of the
bulk supply from this farm were obtained on 17th October, 1932,
and 27th November, 1932. These samples were submitted to
biological examination, and each was found to be free from tubercle
bacilli.