Comparison of Canadian and American Herds
Not only production trait differences, but seasonality factors exist also.
By John Deen and Sukumaran S Anil
We continue to see significant differences between Canadian and American herds as well as differences in performance by season. As in previous years, Canadian herds are consistently higher in nearly all of the production parameters measured by PigCHAMP, as exhibited in the graphs shown here.
It is, however, important to consider seasonality. The differences charted show that we still do have seasonal infertility. Surprisingly, this has not decreased with intensification of agriculture, nor has it shown up as a decreased rate in Canada. Still, seasonality differences and sow mortality are both muted in comparison to performance differences.
Editor’s Note: John Deen, DVM PhD, is an Associate Professor at the University of Minnesota, and Sukumaran S Anil, DVM PhD, is a Research Associate at the University of Minnesota. To contact them, e-mail: email@example.com or firstname.lastname@example.org