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Water and electrolyte changes in tropical Merino sheep exposed to dehydration during summer.
During three summers field studies were made of Merino wethers deprived of water while exposed to sun and to maximum air temperatures ranging from 84°F (29°C) to 108°F (42°C) at Julia Creek, lat. 21°… Expand
The effects of environmental complexity on the histology of the rat hippocampus
- R. Walsh, O. Budtz-Olsen, J. E. Penny, R. A. Cummins
- Biology, Medicine
- The Journal of comparative neurology
- 1 November 1969
One group of rats was reared under conditions of environmental complexity, while their littermates served as isolation controls. The occipital cortex was 4.9% (p < 0.01) and the hippocampus 5.7% (P <… Expand
Environmentally-induced Changes in the Brains of Elderly Rats
- R. A. Cummins, R. Walsh, O. Budtz-Olsen, T. Konstantinos, C. Horsfall
- Biology, Medicine
- 29 June 1973
ANIMALS that have been exposed to environmental stimulation develop marked differences in brain structure and biochemistry when compared with animals that have not been exposed in this way1–4.… Expand
The rumen as a water store in sheep.
The rumen fluid volume in sheep was measured by the method of phenol red dilution. Serial determinations made in 22 sheep deprived of food and water for up to 8 days showed that the greatest decrease… Expand
Scientific safari; the circulation of the giraffe.
The sickle-cell trait in the South African Bantu.
A POTASSIUM AND SODIUM BALANCE STUDY IN TWO BREEDS OF SHEEP
A balance experiment measuring potassium and sodium intake and excretion was carried out on Romney Marsh and Merino sheep. For either potassium or sodium the correlation between total intake and… Expand
Surgery in haemophilia; a case of spinal subdural haematoma producing paraplegia.
Absence of Red Cell Enzyme Deficiency in Australian Aborigines
THE geographical distribution of erythrocyte glucose-6-phosphate dehydrogenase deficiency is now-known to be widespread. Thus, this genetically determined enzyme defect has been shown to be present… Expand
Changes in renal haemodynamics and electrolyte excretion during acute hyperkalemia in conscious adrenalectomized sheep.
- O. Budtz-Olsen, R. C. Clark, R. Cross, T. French
- Chemistry, Medicine
- Quarterly journal of experimental physiology and…
- 16 July 1975
The p-aminohippurate (PAH) clearance, inulin clearance and the excretion of electrolytes by 10 adrenalectomized sheep were measured before, during and after the infusion of 0-43 M-KCl at 2 ml./min… Expand