Calving season, the most labour-intensive part of a beef producer's year, could be shortened thanks to a new innovation out of the University of Saskatchewan. Calving season, the most labour-intensive part of a beef producer's year, could be shortened thanks to a new innovation out of the University of Saskatchewan. Cetrorelix, a hormone drug commonly used in humans for in vitro fertilization (IVF), may so... [3130 chars]