Hyperthermia in Merino wethers affected with humpyback disease.
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Biomedical subjects
W A Hoey
Publications and source records attributed to W A Hoey.
Chronic arterial cannulation for studying the skin of sheep.
Cutaneous branches of intercostal, external thoracic and deep circumflex iliac arteries in a total of 77 sheep were cannulated using one of two methods described. These cutaneous preparations, supplying areas of wool-growing skin from 30 to 400 cm2, remained patent for up to six weeks as determined by dye infusion. Wool was readily plucked by hand from preparations infused with either 12 mg betamethasone for eight days or 1.2 g mimosine for two days thereby demonstrating that normal defleecing responses can be elicited in animals bearing isolated cutaneous preparations.
Animals↗
Preparation of an isolated cutaneous infusion in sheep.
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Animals↗
An investigation into hindleg lameness in dairy cows.
A hind leg lameness of dairy cows was investigated in south-east Queensland. Samples of bone, blood, saliva, faeces, urine and milk were collected from lame and normal cows, some of which had received a phosphorus supplement of 30 g per day. Results of these investigations are presented and discussed. Clinical observations and pathological examinations indicated that the disease was an arthropathy affecting either the coxo-femoral or femoro-tibial joints. The disease was present in 30% of herds surveyed. Each owner reported 2 to 3 lame cows. The affected cows could not be differentiated from the normal cows on biochemical grounds. An hypothesis is advanced to explain the reported response of lame animals to large supplements of phosphorus. Information which indicates that previous nutritional status and methods of production cannot be ignored as predisposing factors is presented.
Animals↗