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is when is comes to us, and with you the disease germs which do
the harm have not had time to multiply. In the second place,
disease spreads much faster in a crowded city than in the country
with its scattered population. In the third place, the power of
resisting disease in the city is much less than it is in the
country. Your children, who play all day in the fresh air and
sunshine, who roll on the green grass, and who sleep in the cool
night breeze are much more likely to shake off any threatened
sickness than the babies in the slum districts, for instance, who
must play in the gutter or on the hot pavement in the daytime and
sleep in stifling and perhaps crowded rooms at night. The death
rate among little children is half as high again in the city as
it is in the country, and sickness is in even greater proportion.
* * * * *
Dr. C. W. EDDY, chief of inspection division, public health
department: When the Cleveland health department first undertook
a definite system of sanitary inspection of the dairies shipping
milk to the city the first question that presented itself was a
form of report to be used by the inspector. It was first proposed
to have a list of questions to be asked by the inspector, the
answers to be his report on the dairy inspected. This was
tried and found unsatisfactory, as it did not give an adequate
description of conditions nor the exact relations of the good
features to the indifferent or positively bad. While in this
quandary I received a communication from the Dairy Division
of the United States Department of Agriculture, in which was
described the score card used by the inspectors of that division.
It appealed to us at once as a solution of the difficulty, and we
proceeded to give it a thorough trial. After a brief use of the
card we decided to adopt it in our work.
The card first used has been modified somewhat to make it more
applicable to local conditions, but the principle remains the
same. The most important feature of the score card is its
absolute fairness, it being impossible for the inspector who
follows the printed instructions to display any partiality. It
further calls the attention of the inspector to many details
which he might otherwise overlook, which, from our standpoint at
least, are very important. After a dairy is scored and the score
card sent in we can tell exactly what conditions exist upon the
farm--where it is well equipped and where it is deficient. It
should be borne in mind that we inspect the dairies and use the
card to bring out the bearing of the production of milk upon the
public health. Therefore some features looked upon in this light
are of more significance than others and are consequently given a
greater weight, as, for instance, cleanliness of milking counts
10 points, while cleanliness of stable yard counts but 3 points.
It is difficult for many dairymen to comprehend this, and they
are prone to look upon an expensive herd of cattle or barns of
more importance than the sanitary features of milk production.
The average score of dairies inspected is too low, being below
50. We hope and expect in time and as we score the dairies more
frequently to raise the standard. This is, of course, a matter
of education, but with intelligence and patience on both sides
we shall certainly succeed, and those of you who profit by the
points here discussed will be the first to reap a material
benefit in the form of an increased demand for milk produced
under sanitary conditions.
* * * * *
Dr. R. G. PERKINS, city bacteriologist: Since the establishment
of the laboratory the chief part of the work on milk has been of
the ordinary routine type. Samples of suspicious milk have been
studied, and a long series of counts were made on samples taken
from the receiving stations and from wagons in the endeavor to
find a suitable standard for the city. As a result of this work
the standard was set at 500,000 bacteria per cubic centimeter.
Even in the summer months it is the exception rather than the
rule that this limit is passed, and it seems that a lower one
might be quite practicable. The most interesting work done in
the department was an endeavor to find the relative proportion
of bacteria in milk obtained from the cans, as served to
customers by the so-called “dip method,” and that obtained from
bottles carried in the same wagons. An ordinance had been passed
compelling the delivery in bottles, and these tests were made
shortly before it went into effect. Samples were taken from
dealers trading in various parts of the city, to cover all the
conditions, and were taken every day for a week in each series.
The conditions, such as weather, etc., were carefully noted and
the following conclusions were reached:
In the average of the 40 samples the “dip” milk was found to
contain 37 per cent more bacteria than the bottle milk.
In 77.5 per cent of the samples the “dip” milk contained more
bacteria than that in the bottle. Sixteen samples were over 50
per cent higher, and 8 of these were over 300 per cent higher
than the corresponding bottled samples.
In 22 samples the bottled milk had most bacteria, only 3 of these
being more than 50 per cent over the “dip” samples.
Dry weather, especially with a stiff breeze, usually resulted in
an increase of several hundred per cent in the bacterial content
of the “dip” milk over the corresponding bottles.
The results of these examinations were considered adequate
to justify the ordinance requiring the delivery in bottles
exclusively, although in the case of a milkman who is dirty it is
quite possible that the use of bottles may increase the amount of
bacteria. This, however, is a matter which should be controlled
by adequate inspection of the dairies and the bottling plants.
* * * * *
Prof. WILLIAM PATE, Jr., city chemist: Our work consists
wholly of the determination of quality as required by law and
examination for the presence of chemical preservatives, colors,
cream thickeners, or other adulterants. We collect and test 40
samples of milk a day, taken from the milkmen upon the streets
and from the stations as it is delivered to the milkmen. The Ohio
law and our municipal requirements are that the milk must contain
3 per cent of fats and 12 per cent of solids for the entire year.
Formerly the requirement was 2.8 per cent fats and 11.5 per cent
solids during the grass months of May and June, but it seems that
3 and 12 per cent are low enough even for these months, and we
conclude that any herd which produces milk below these limits
is not a well-balanced herd, at least before our law. It is
very true that some herds are producing milk below 3 and 12 per
cent, but the producer having such a herd should balance it with
animals giving lesser quantity but richer quality so as to bring
his average for the entire herd up to the legal requirement.
For the year just passed we had for average results of 6,045
samples of milk taken: Lactometer, 312; fats, 3.71 per cent;
solids, 12.51 per cent. And for the year 1905, 5,890 samples:
Lactometer, 312; fats, 3.81 per cent; solids, 12.65 per cent.
As the average result of the year will show, we have very good
milk in Cleveland from the standpoint of quality as required by
our law, although it is only fair to say to the producers that
the milk as it comes into the city is better than it is when
delivered to the consumer. I cite a few instances:
_Table showing composition of milk as received by milkmen and as
delivered to consumers._
+-----------------------+-----------------------+
| As received by | As delivered to |
| milkman. | consumer. |
+-----------+-----------+-----------+-----------+
| Fats. | Solids. | Fats. | Solids. |
+-----------+-----------+-----------+-----------+
|_Per cent._|_Per cent._|_Per cent._|_Per cent._|
| 3.9 | 12.69 | 3.3 | 12.02 |
| 4.1 | 12.77 | 3.4 | 12.17 |
| 4.2 | 13.05 | 3.2 | 11.59 |
| 3.8 | 12.62 | 2.7 | 10.55 |
| 3.8 | 12.77 | 3.1 | 11.18 |
| 4.0 | 13.21 | 3.2 | 12.20 |
+-----------+-----------+-----------+-----------+
The examination for the presence of preservatives consists in
carrying along a test for formaldehyde with all samples taken. We
are particularly free from this preservative in Cleveland, but
six samples having been found treated with formaldehyde in 1905
and four in 1906. The offenders were immediately prosecuted, but
in addition to prosecution the board of health uses an effective
weapon in the revocation of licenses. The present policy is to
revoke the license of any man who is found to have on sale an
adulterated milk. Tests for the presence of sodium carbonate,
borax, colors, etc., are carried on from time to time as is found
necessary. In the past two years we found one sample containing
carbonate and one to which annatto had been added as an enriching
color.
* * * * *
D. C. HALE, milk producer: In the past milk delivered to the
Cleveland trade has been looked upon simply as milk, with no
thought of the conditions under which it was produced. Whether
it came from sanitary or insanitary stables it was all sold as
one grade and for the same price. But now, since the question has
been agitated and brought to the attention of the consumer, we
producers look for more definite rules and regulations governing
the city milk traffic whereby the dairyman may be rightfully
compensated for his painstaking labor.
There is no reason why milk produced in a well-kept dairy of
healthy cows where sanitary methods are practiced should not
bring more money than that produced by the careless dairyman. It
has long been a puzzling problem to many of us why it was that
other farm products could be placed in the city market strictly
on their merits, while milk, which enters into more foodstuffs
than any other product, has to be sold simply as milk and usually
for one common price regardless of what has entered into the
production of that product. We who profess to have produced
sanitary milk in the past have an opportunity at this time to
take an advance step in the way of adopting more rigid sanitary
rules that may be recommended for the good of the consumer and
that may prove practical and, we hope, beneficial to the producer
in returning him a more remunerative price for his extra care and
attention.
I believe that it is injurious to the general health of a cow
to be turned out of a warm stable and allowed to remain out and
get chilled, as is the practice with many dairymen. If cows must
be turned out of the stable in winter to get water, they should
be put in the stable just as soon as they return from water.
Keeping the cows comfortable will save hay and grain, increase
the milk production, and keep the herd in better health. The
kind of feedstuff to be used is a matter of choice, economy, and
convenience. If there is one domestic animal more than another
that is deserving of sunshine in her home during the winter
months it is the cow, not only for her enjoyment, but for her
health.
Milk should be handled in such a way, after it leaves the milk
room, as to lower the temperature rather than raise it. It should
not be exposed to the hot sun. We should urge the importance of
transportation companies doing their part toward taking care of
the temperature of the milk after it has been delivered to them
and until they have delivered it to the city milk dealer.
CLEVELAND’S EXPERIENCE WITH THE TUBERCULIN TEST.
Cleveland was one of the first cities to incorporate in its
ordinances a requirement that no milk should be sold in the city
except from dairies holding certificates that their cows are free
from tuberculosis as shown by the tuberculin test. The experience
of this city is therefore of interest and value in connection with
the subject of a wholesome milk supply for cities. Following are the
sections of the Cleveland ordinance relating to the tuberculin test:
PART ONE, TITLE V.
SEC. 4. On and after the ---- day of ----, 1906, no milk will be
allowed to be sold or offered for sale or brought into the city
from any cow or cows unless the owner of said cow or cows holds a
certificate of this board’s veterinarian, or other veterinarian
acceptable to this board, that said cow or cows are free from
tuberculosis as shown by the tuberculin test.
SEC. 5. Any person selling or offering for sale any milk from
uninspected cows as above shall be subject to having his license
revoked.
The city did not attempt at the outset to require all dairymen to
conform to this section, and it is not the intention to do so until
the State laws on the subject are more efficient and provide prompt
compensation for cattle destroyed. At present the tuberculin test
is required only of dairies where tuberculosis is known to exist
as determined by physical examination or by tracing cattle killed
at abattoirs. If the owner does not consent to the test and to the
slaughter of the reacting cattle, his milk is excluded from sale in
the city, and in addition the State board of live stock commissioners
is notified, which commissioners have the authority to enforce the
test or to quarantine the suspected herd. If the owner consents, the
test is made free of charge. After the test the reacting cattle are
appraised by two disinterested persons, one selected by the board of
health, the other by the owner. The average between the two values
is taken as the true value, and the appraisal and report of the test
is submitted to the State board of live stock commissioners. If this
board approves the finding, an order is issued authorizing the health
department to destroy the reacting cattle, which is done and promptly
reported back to the State authorities. The approved appraisal is
then submitted to the governor, approved by him, and submitted to
the proper committee of the legislature, which finally instructs
the State auditor to draw a warrant for the claim. The law allows
from one-half to three-fifths of the appraised value, but so far all
claims have been paid in full.
The attitude of the dairymen toward the test was somewhat hostile
at first, which was natural, as it was a great surprise to them
to find that tuberculosis existed to such an extent among their
herds. Several instances were met, however, even at the first, of
exceedingly public-spirited dairymen who did all in their power to
assist the board of health, even where the losses were very severe.
The hostile feeling manifest at first has since given way to a
fair-minded conception of the situation, and the only objection to
the general application of the test is the long delay in the payment
of the claims. This is a very great hardship on a dairyman who is in
debt and dependent upon his cattle for the support of his family,
especially as in Ohio the legislature meets only every alternate year.
The following are the statistics of the work of the board of health
for the eighteen months beginning with January, 1906:
Number of herds tested 20
Number of cattle tested 280
Number of reactions 89
Percentage of reactions 32
Tested by other veterinarians under direct supervision of the board
of health:
Number of herds tested 13
Number of cattle tested 201
Number of reactions 29
Percentage of reactions 15
It is understood that within the same period about three times as
many cows have been tested by private veterinarians, the reacting
cattle being secretly sold and shipped to other States.
The greatest good accomplished has been in the dissemination of
knowledge concerning bovine tuberculosis among not only the dairymen,
but the people generally. The health office receives almost daily
inquiries as to where milk from tuberculin-tested cows can be had
for domestic purposes, and almost as many inquiries as to where
tuberculin-tested cows can be purchased. Nearly one-half of the
herds tested have been tested as the result of requests of owners
who desired to know for themselves what condition their herds were
in. This has been specially true in the last six months. It is
expected that more cattle will be tested in the next year than in the
preceding eighteen months, and if State laws can be passed that will
be satisfactory and efficient and provide a fair compensation there
will probably be more herds to test than the present force can handle.
The efforts of the Cleveland board of health to eradicate
tuberculosis from dairy herds and to secure a safe milk supply for
the city deserve commendation, and other cities may well profit by
this experience and adopt similar measures to safeguard the health of
the public.
IMPORTANCE OF THE TUBERCULIN TEST.
The public has become aroused and general interest is being
manifested especially in measures for reducing the mortality from
tuberculosis in human beings. This is shown by the formation of
societies throughout the country for furthering these measures and by
the general campaign of education which is now under way. It has been
shown beyond question that human tuberculosis and animal tuberculosis
are communicable between persons and animals, and that a considerable
proportion of the cases of human tuberculosis are caused by infection
from animal sources. The eradication of tuberculosis from dairy cows
is therefore very desirable as a protection to human health.
The tuberculin test is recognized by sanitarians as an agency of the
greatest value for detecting tuberculosis in dairy herds and for
controlling and eradicating the disease. Without its assistance but a
small percentage of the cases could be detected in the live animals.
It is remarkably accurate, the records of thousands of cases in
which the animals have afterwards been slaughtered showing a correct
diagnosis in 97 per cent.
Unfortunately, in the early attempts to control tuberculosis in some
States, measures were adopted which were so radical that they aroused
the antagonism of the dairymen and cattle owners generally, and
little was accomplished in the way of either benefiting the cattle
owners or removing the dangers of the disease to the public. It is
time that those interested in the dairy and live-stock industries
of the country should give their support to all measures tending to
check this widespread disease and to prevent the serious losses which
it causes. It is to their interest to do so purely as a business
proposition, regardless of any benefit to the public health.
A practice which is largely instrumental in the spread of
tuberculosis is the sale of animals known to be diseased without
transmitting this knowledge to the buyer. This is done not only in
private sales, but at public auctions as well. This practice should
be stopped. Where the tuberculin test is used under the direction
of a board of health, the animals as a rule are properly marked
(usually by placing metal disks in the ears), showing whether they
are tuberculous or healthy. This plan is to be commended, as it
renders difficult the deception of a purchaser.
While some States have laws prohibiting the importation of cattle
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