00306    a2200109   4500082001700000245003000017260005000047300002200097440003300119650002100152650002300173  a636.089bKEE  aKeeping livestock healthy  bUnited States Department of Agricultureg1942  axiii,1271p.c24cm  aYearbook of agriculture 1942  aAnimal husbandry  aVeterinary science