Onderstepoort Veterinary Institute

Permanent URI for this collectionhttp://hdl.handle.net/2263/3812

The ARC-Onderstepoort Veterinary Institute (ARC-OVI), has a long tradition of veterinary research since its founding in 1908 by Sir Arnold Theiler. It is nationally and internationally recognized as a veterinary centre of excellence. The ARC-OVI is a flagship institution of the Agricultural Research Council and plays an important role in maintaining the health of our national herd and wildlife. This collection (in an experimental phase) consists of the following sections:

General veterinary history collection

African animal trypanosomiasis (Nagana) collection

Heartwater collection

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Now showing 1 - 20 of 48

Endocardial haemorrhages in a sheep heart as a result of heartwater
(2009-05-26T09:28:34Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Epi- and endocardial haemorrhages are commonly present in the disease.
Land cleared of bush to control tsetse flies and uncleared land in Zululand
(2009-03-02T10:01:49Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Several methods have been or are used to control trypanosomosis. One of the methods is bush clearing to reduce the fly's habitats and breeding sites.
Use of "bait" cattle to capture tsetse flies in Zululand
(2009-03-02T08:33:15Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
"Bait" cattle can be used to deterimine the incidence of tsetse flies in an area. Flies landing on cattle to feed are captured.
Breeding sites of tsetse flies in Zululand
(2009-03-02T08:00:56Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Female tsetse flies deposit larvae in soft ground in shady places. The larvae moult to form pupae from which adult flies eventually emerge. The flies (male and female) then seek a blood meal. The mean life span of a male fly is about four weeks and that of a female about eight weeks. Flies detect the odours of their prey by means of sensilla situated on their antannae.
Haunts of tsetse flies
(2009-03-02T07:28:24Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
In Africa, protozoon parasites of the genus Trypanosoma are responsible for causing what is probably still the most important disease of domestic livestock in Africa south of the Sahara Desert i.e. African animal trypanosomosis or nagana. The natural hosts of these trypanosomes are many species of wild game which are adapted to the parasites and do not show any symptoms. The trypanosomes occur in the blood stream of infected animals and are carries from animal to animal by bloodsucking biting flies of the genus Glossina.
Rabbits bred for veterinary experimental work
(2008-11-14T10:25:51Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Small animals such as rabbits, ferrets, rats and mice were bred for experimental work in the 1940's. In modern times they are very seldom used as other methods have been developed.
Ferrets, for veterinary experimental work, in their cages
(2008-11-14T08:50:08Z) Unknown; South Africa; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Ferrets were bred particularly when experimental work was being done in the 1950's for the development of a canine distemper vaccine as they are also susceptable to the virus (a member of the family Paramyxoviridae)
Allerton Laboratory, Kwazulu-Natal, South Africa
(2008-11-14T08:01:46Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Allerton laboratory was and still is, a regional diagnostic laboratory. It is situated in the Pietermaritzburg district, Kwazulu-Natal.
Aerial view of the Pathology building, Onderstepoort Veterinary Institute
(2008-10-03T07:28:41Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
The Pathology building was erected in 1923. On the left is part of the "clinical block" (also called the "animal hospital")
Nervous signs of heartwater in a calf
(2008-08-07T10:02:59Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Clinical signs of heartwater in cattle is a fever of 40°C or higher which persits for 3-4 days before it falls to below normal shortly before death. Animals cease eating and a diarrhoea may or may not be present. Some cattle, particularly those of the Jersey breed, develop a profuse, often haemorrhagic, diarrhoea. During the later stages of the disease syndrome nervous signs occur which vary from mild incordination to convulsions. Animals are hypersensitive when handled or exposed to sudden noise. Tapping on the forehead often causes exaggerated blinking. Some animals walk with a high stepping gait or wander around aimlessly and walk into fences. If they fall down they may make "pedalling" movements with the legs. (Source: Allsopp, BA, Bezuidenhout, JD & Prozesky, L 2004, 'Heartwater', in Coetzer, JAW & Tustin, RC, Infectious diseases of livestock, Cape Town, Oxford University Press, 2004)
Onderstepoort students' hostel
(2008-05-16T09:05:09Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Considerable expansion of the infrastructure at Onderstepoort, mainly to accommodate new students, took place in the early 1920s. The Biochemistry wing of the main building, the Pathology building, the hospital block and a students’ hostel were erected.
Onderstepoort clinical block
(2008-05-16T08:39:59Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
The "clinical block" (or animal hospital) housed primarily large and small animals that were patients of the surgery department. Notice the lungering ring (circular "path") in the centre of the lawn.
Onderstepoort from the clock tower looking north
(2008-05-16T08:21:33Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
On the photo in the right foreground are the animal stables, in centre distance, is the "clinical block" (animal hospital) and on the right, part of the Pathology building.
A tsetse fly (Glossina morsitans) next to a match stick head
(2008-04-17T09:35:35Z) Robinson, J.; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Glossina morsitans, a species originally thought to be the sole transmitter of Trypanosoma brucei brucei, the cause of nagana in central Africa; this species transmits this disease in some regions, but it is not the sole or even always the principal transmitting agent; it is the vector of t. Brucei rhodesiense, one of the pathogenic agents of East african, Rhodesian, or acute sleeping sickness.
Tsetse fly (Glossina spp)(1)
(2008-04-16T08:20:57Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Tsetse-flies are bloodsucking flies which transmit trypanosomes biologically from animal to animal.
Harris tsetse fly trap used in Zululand during 1930's
(2008-03-28T09:07:54Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Several methods have been or are used to control trypanosomosis. Some of these are: 1. Control of the vectors (i.e. tsetse flies [Glossina spp]) -- 1.1. Remove their source of food (i.e. blood of animals) by reducing the number of game species (i.e. large scale hunting) -- 1.2. Bush clearing to reduce the fly's habitats and breeding sites -- 1.3. Application of long-acting insecticides to the fly's habitat. This can be achieved by spraying insecticides from the ground or by air -- 1.4. The use of traps, to control the flies, was first developed and used in 1930 by R.H.T.P. Harris in 1930 in Zululand. Although the traps captured many flies they were unsuccessful in the long term -- 1.5. Use of coloured, odour-baited and insecticide-treated traps, screens or targets has been more successful -- 1.6. Dipping or spraying cattle in a long-acting insecticide -- 2. Prophylactic administation of trypanocidal drugs to cattle -- 3. Use of trypanotolerant cattle.
Trypanosomosis in a horse
(2008-03-27T09:42:32Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
There are no clinical signs specific for trypanosomosis. The disease may be acute, sub-acute or chronic. Acute disease may be fatal after an illness lasting 2-6 weeks, or it may developed into the chronic phrase which may last for many months. In the acute form there is fever, congested mucous membranes, anorexia, lethargy, recumbenncy and often death. The chronic disease (the most common form) is characterized by emaciation, weakness, lethargy, anaemia, enlarged lymph nodes and subcutaneous (dependent) oedema.
Cattle suffering from trypanosomosis in Uganda
(2008-03-13T10:04:40Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
There are no clinical signs specific for trypanosomosis. The disease may be acute, sub-acute or chronic. Acute disease may be fatal after an illness lasting 2-6 weeks, or it may developed into the chronic phrase which may last for many months. In the acute form there is fever, congested mucous membranes, anorexia, lethargy, recumbenncy and often death. The chronic disease (the most common form) is characterized by emaciation, weakness, lethargy, anaemia, enlarged lymph nodes and subcutaneous (dependent) oedema.
Trypanosomosis in a bovine
(2008-03-13T09:50:56Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
Chronic trypanosomosis caused by Trypanosoma virax. The chronic form - the most common - is characterized by emaciation, weakness, lethargy, anaemia, enlarged lymph nodes and subcutaneous (dependent) oedema.
Daspoort Laboratory
(2008-03-03T10:14:43Z) Unknown; OVI-Info@arc.agric.za; Onderstepoort Veterinary Institute (South Africa)
The ARC-OVI owes its origin to the rinderpest outbreak that swept through South Africa in 1896. Its forerunner was a laboratory established at Daspoort by Arnold Theiler in 1897.

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