Provided are compositions and methods for use in prophylaxis of puerperal metritis and improving reproductive function of ruminants. The methods and compositions are for subcutaneous administration and are provided as veterinary compositions and as articles of manufacture. The veterinary composition can contain whole cells selected from whole cells of Escherichia coli (E. coli), Trueperella pyogenes (T. pyogenes), Fusobacterium necrophorum (F. necrophorum) and combinations thereof； and/or proteins selected from F. necrophorum leukotoxin (LKT), E. coli type 1 fimbrial adhesin (FimH), T. pyogenes pyolysin (PLO), and all combinations of the whole cells and the proteins.
