Julien, Debra Jean2015-05-122015-05-121997https://scholarworks.montana.edu/handle/1/7795enBeef cattle--Cow-calf systemBody weightGrazingComputer simulationThe effects of calving date, weaning date, and duration of fall grazing on the sustainability of beef cow-calf operations in central and southeastern MontanaThesisCopyright 1997 by Debra Jean Julien