Zobrazeno 1 - 10
of 52
pro vyhledávání: '"W.G. Whittlestone"'
Autor:
D.E. Jasper, W.G. Whittlestone
Publikováno v:
Journal of Dairy Science. 59:2077-2085
Transfer of bacteria between teat cups, between teats of the same cow, and between teats of different cows was investigated by tracer bacteria applied to teat skin and by injection of tracer bacteria or colored fluids into the short milk tube. In spi
Publikováno v:
Journal of Dairy Science. 58:30-33
Concentrations of adrenal corticosteroids in plasma were determined by a competitive protein-binding technique in blood samples taken hourly over 24 h from four dairy cows, each sampled for three 24 h periods. Mean blood cortisol was 7.9 ng/ml. Stati
Publikováno v:
Journal of Dairy Science. 58:1531-1535
Operant conditioning procedures (food reward immediately following a desired response) seldom have been applied to the study of learning ability in dairy cattle, and yet they offer the dairy researcher unique opportunities to study and control import
Autor:
W.G. Whittlestone
Publikováno v:
New Zealand Veterinary Journal. 5:55-60
Extract Occasionally the need arises for a review of a subject aimed at putting the available evidence into perspective. Over the past decade a considerable amount of work has been done on the milk-ejection mechanism of the mammal. Too frequently thi
Publikováno v:
Journal of Dairy Science. 59:744-746
Concentrations of adrenal corticoids in plasma were determined by a competitive protein-binding technique using jugular blood samples taken three times daily and more frequently during labor from 21 cows before and after parturition. The prepartum va
Autor:
D.E. Jasper, W.G. Whittlestone
Publikováno v:
Journal of Dairy Science. 60:1979-1981
Teat ends of cows milked with single chamber teat cups seldom were affected by eversions whereas eversions and slight eversions were common on teat ends of cows milked with conventional teat cups and liners. Intramammary infections were not reduced b
Publikováno v:
The British veterinary journal. 132(6)
SUMMARY Concentrations of adrenal corticosteroids were determined by a competitive protein-binding technique in jugular blood plasma obtained from 21 calves within five minutes of birth, and every morning for the following 20 days. In calves which re
Autor:
W.G. Whittlestone, L.R. Cate
Publikováno v:
Journal of Dairy Science. 56:1352-1353
An automatic feeding device is described which is particularly suitable for operant conditioning experiments involving cows and similar large domestic animals.
Autor:
M.A.S. Jones, W.G. Whittlestone
Publikováno v:
New Zealand Veterinary Journal. 17:181-182
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