H. Varela-Alvarez

Effect of Selenium and Iodine Supplementation on Growth Rate and on Thyroid and Somatotropic Function in Dairy Calves at Pasture

J.J. Wichtel, Anne Craigie, David A. Freeman et al. · Journal of Dairy Science · 1996 · 79 citations · Full text

A comparison of the four prominent user-based methods for evaluating the usability of computer software

Ron Henderson, M Cecil Smith, John Podd et al. · Ergonomics · 1995 · 54 citations

Software Maintenance, Engineering, Education +22

The effect of intra-ruminal selenium pellets on growth rate, lactation and reproductive efficiency in dairy cattle

J.J. Wichtel, Anne Craigie, H. Varela-Alvarez et al. · New Zealand Veterinary Journal · 1994 · 46 citations

Nutrition, Fertility, Selenium Concentration +21

An examination of four user-based software evaluation methods

Ron Henderson, John Podd, M Cecil Smith et al. · Interacting with Computers · 1995 · 35 citations

Software Maintenance, Engineering, Software Engineering +17

Influence of Energy Level, Creep Feeding and Lactation Stage on Ewe Milk and Lamb Growth Characters

Livi Wilson, H. Varela-Alvarez, Christine E. Hess et al. · Journal of Animal Science · 1971 · 23 citations

Nutrition, Livestock Production, Agricultural Economics +19