Lalman, David Leon2015-05-122015-05-121991https://scholarworks.montana.edu/handle/1/6973enHeifersFeedsProteinsAnimal nutritionPropionic acidAntibioticsReproductionThe effects of ruminally undegradable protein, propionic acid and monensin on puberty and reproductive efficiency in beef heifersThesisCopyright 1991 by David Leon Lalman