PUBLIC RECORD OFFICE
‚། །།།
C.O.
Reference :-
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20 PUBLIC RECORD OFFICE, LONDON
ALLY WITHOUT PERMISSION OF THE BE REPRODUCED PHOTOGRAPHIC- COPYRIGHT PHOTOGRAPH—NOT TO
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and thumb will expel the contents and remove all doubt. The vicinity of this ileo-caecal valve, the sack-like caecum, and the first portion of the large intestine are the most common seats of the lesions of swine fever.
The lesions are of two forms, the most common of which is the swine fever ulcer. This takes a circular or oval form and varies much in size. A not uncom- mon size is that of a four anna piece, but they may be of any size downwards from that of a rupee.
These ulcers generally have a greyish surface which is rather firm and dry, and is either on a level with the surrounding lining membrane of the intestine or projecting somewhat above it. The ulcer in time shows a series of irregular concentric rings, and, finally, if the animal survives, sloughs off as a piece of dead tissue, leaving a shallow ulcer which may heal in the form of a yellowish scar slightly below the level of the surrounding lining of the bowel.
The other most frequent intestinal lesion is the diphtheritic. This is a destruc- tion of the lining membrane of the bowel, and occurs in patches varying in size from that of a pin's head to an extent involving a large portion of the intestine. Combined with this destruction there is a deposition of a thin layer of croupous or fibrinous flaky material which is of a yellowish-white colour. This is firmly adherent to the lining of the bowel, and washing the latter in the water will not remove it.
In very acute cases of swine fever there may be no lesion in the bowels save that of a widespread inflammation closely resembling that caused by an irritant poison.
Although the most frequent seats of the lesions are the portion of bowel men- tioned, the same conditions are often met with in the stomach, small intestine, and lafter portion of the large, also occasionally in the mouth and throat. If the cause of disease is not found on examining the parts not commonly affected, a careful search should be made throughout the entire alimentary canal.
In addition to these lesions there are several other changes in the internal organs which might escape the notice of any one unaccustomed to holding post- mortem examination.
Treatment. Has hitherto proved unsuccessful.
Method of dealing with Swine Fever on its appearance in a Herd. It is important to at once isolate the diseased animals, or, better still, to slaughter them and burn their carcasses.
All litters and the bomas in which the pigs have been housed should be burnt. anyone who attends to or goes near the animals or on the place where they have been kept should be most careful to disinfect feet, hands, and clothing. No other animal or bird should be permitted to go near the affected pigs or the place on which they have been feeding. Pigs which have been in contact with those diseased should be isolated, and should any of them show the slightest symptoms of illness, they should at once be placed with the diseased swine.
The safest method and the one by which the infection would be most speedily destroyed would be to slaughter and burn all swine which has been in contact with those affected.
Care should be taken that the affected pigs do not have access to a stream at which other swine drink.
Precautions to prevent the introduction of Swine Fever.-The previous history of every pig introduced on to a farm should be ascertained as far as possible; and in cases where it is not absolutely certain that such pig has been bred and kept on farms free from disease; the animal should be kept apart from the swine for at least four months; and during that period be regarded as a possible source of contagion.
This applies specially to full grown boars and sows, many of which have a strong natural resistance to the disease, but still are capable of infecting susceptible swine.
No one should be permitted to go near the pigs who has been on premises on which other swine are kept. Especially if swine fever is prevalent in the district
Efforts should be made to find out, if there are any wild pigs in the vicinity, if there is any disease affecting them.
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No. 173,
THE BRITISH SOUTH AFRICA COMPANY to COLONIAL OFFICE. (Received September 27, 1907.)
2, London Wall Buildings, London, E.C.,
September 26, 1907. SIR,
I AM directed to forward, for the information of the Secretary of State, the enclosed copy of the minutes* of a meeting of my Directors held on the 19th instant, together with the documents relating thereto.
I am, &c.,
Enclosure in No. 178. (Annexure No. 12.)
A. P. MILLAR
Assistant Secretary.
ACTING SECRETARY, Kalomo, to the BRITISH SOUTH AFRICA COMPANY, London. (Received September 16, 1907.) (No. B. 180/1907.)
SIR,
Administrator's Office, Kalomo, August 22, 1907.
I AM directed to forward, for the information of the Board, a copy of a report sent to His Honour by Dr. Montgomery of the Sleeping Sickness Commission, together with a copy of a letter from His Honour, authorising Dr. Montgomery to spend up to fifty pounds, half of which expenditure will be refunded by the Northern Copper (British South Africa) Company, on the acquisition of live stock for experi- mental purposes.
I am to state that this arrangement has the concurrence of the Visiting Directors.
The Secretary,
SIR,
The British South Africa Company,
2. London Wall Buildings, E.C.
I have, &c.,
HENRY RANGELEY,
Acting Secretary.
THE LIVERPOOL SCHOOL OF TROPICAL MEDICINE. Expedition to the Zambesi, 1907.
Broken Hill, North-Western Rhodesia,
July 25, 1907. I HAVE the honour to forward, for your Honour's information, the results observations on cattle, the property of European settlers in this locality. of my observations on you that the recalled "Hy disease of domestic animals is etiologically identical with "sleeping sickness" of man, and that on à priori grounds a prophylactic or a curative agent will apply equally to one or the other of these forms of trypanosomiasis.
Microscopical blood examinations have been made on 134 cattle, of which 76 were in a suspicious condition, 10 mules and one donkey. From these 76, 23 or 30 per cent. were found to be suffering from the disease. Further examination would reveal a higher percentage, it being inevitable that ordinary microscopical examina- tion should fail to disclose the micro-organism in such cases as are in the latent or intermittent periods. The disease may consequently be regarded as endemic in the neighbourhood of Broken Hill, and, as such, offers the greatest possible hindrance to the development of the district by settling or otherwise.
These cattle were owned by Messrs. Johnson, Miles, This, the Northern Copper Company, and one other owner. I desire to express my indebtedness to these for the
• Not printed.
† Aunexure 12 only printed.
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