Reproduction and nutrition of ruminants, especially cattle and sheep
Special interest in trace element and vitamin nutrition - specific expertise with selenium
Muirhead TL, Wichtel JJ, Stryhn H, McClure JT. The selenium and vitamin E status of horses in Prince Edward Island. Canadian Veterinary Journal, accepted, 2009.
Ceballos A, Sanchez J, Stryhn H, Montgomery JB, Barkema HW, Wichtel JJ. Meta-analysis of the effect or oral selenium supplementation on milk selenium concentration in cattle. Journal of Dairy Science 91:1-19, 2009.
Wichtel JJ, Charmley E, Richardson GF, Duynisveld JL and Lofstedt R. Effects of postpartum energy intake on pregnancy rates in beef cattle subjected to GnRH- or CIDR-based timed artificial insemination protocols. Canadian Journal of Animal Science 88:439-447, 2008.
Muirhead T, McClure TJ, Wichtel JJ, Stryhn H, Markham F, McFarlane D, Lunn DP. The effect of age on systemic antibody response following rabies and influenza vaccination in healthy horses. Journal of Veterinary Internal Medicine 22:654-661, 2008.
Mounchili A, Wichtel JJ, Sanchez J. Geographical and temporal aspects of an outbreak of off-flavours in milk in Prince Edward Island dairy herds. Preventative Veterinary Medicine 17:154-61, 2006