Scientific Papers

click on a link to view a report or trial.

Effects of a Long Acting Trace Mineral Rumen Bolus Upon Range Cow Productivity
Jim E. Sprinkle², David W. Schafer², Paul Cunco², Doug Tolleson² and R. Mark Enns³, ²The University of Arizona, Tucson, Arizona, ³Colorado State University, Fort Collins, Colorado

Effects of three types of trace element supplementation on the fertility of three commercial dairy herds
D.H. Black, N.P. French, The Veterinary Record, May 22, 2004

The Effect of Cosecure on the conception rate and trace element status of dairy cattle
A.M. Mackenzie, M.M. Moeini and S.B. Telfer, Department of Animal Physiology and Nutrition, University of Leeds

Effect of a Soluble Colbalt, Selenium and Zinc Glass Bolus on Humoral Immune Response and Trace Elements Status in Lambs
N.R. Kendall, A.M. Mackenzie, and S.B. Telfer, Department of Animal Physiology and Nutrition, University of Leeds

Measuring copper status
Telsol

The molecular basis of copper and iron interactions
Paul Sharp, Centre for Nutrition and Food Safety, School of Biomedical and Molecular Sciences, University of Surrey

Role of rumen in copper and thiomolybdate absorption
L. Gould and N.R. Kendall, School of Veterinary Medicine and Science, University of Nottingham

The Responses to Increased Trace Element Inclusion
S.B. Telfer, Department of Animal Physiology and Nutrition, University of Leeds

The effect of a zinc, cobalt and selenium soluble glass bolus on trace element status of extensively grazed sheep over winter 
N.R. Kendall¹, D.W. Jackson¹, A.M. Mackenzie², D.V. Illingworth¹, I.M. Gill³ and S.B. Telfer^1
1Centre for Animal Sciences, Leeds Institute of Biotechnology and Agriculture, School of Biology, University of Leeds, ²School of Agriculture, Harper Adams University College, ³Thrums Veterinary Group

Effect of a copper, cobalt and selenium glass bolus given to grazing sheep 
N.R. Kendall¹, A.M. Mackenzie², S.B. Telfer^3
1School of Human Development, Academic Division of Reproductive Medicine, Queen's Medical Centre, ²Harper Adams Animal Science Research Centre, Harper Adams University College, ³Centre for Animal Sciences, Leeds Institute of Biotechnology and Agriculture, School of Biology, University of Leeds

The Effect of a Zinc, Cobalt and Selenium Soluble Glass Bolus on Trace Element Status and Semen Quality of Ram Lambs  
N.R. Kendall, S. McMullen, A. Green, R.G. Rodway, Centre for Animal Sciences, Leeds Institute of Biotechnology and Agriculture, School of Biology, University of Leeds

The Effect of Soluble-glass Boluses Containing Copper, Cobalt and Selenium on the Blood Composition of Ewes 
G. Zervas¹, S.B. Telfer², G. Carlos^3
1Agricultural College of Athens, Greece, ²Department of Animal Physiology and Nutrition, University of Leeds, ³Central Veterinary Laboratory, New Haw, Weybridge, Surrey

How To's

click on a link to view one of the instructions.

Cattle Bolus Applicator Instructions
Sheep Bolus Applicator Instructions
Lamb Bolus Applicator Instructions