DeRouchey, J.M.; Tokach, M.D.; Dritz, S.S.; Goodband, R.D.; Nelssen, J.L.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2005)
A total of 239 sows (PIC C-22) were used in this experiment. Sows were randomly allotted to one of the two experimental treatments
approximately 5 days before their expected
farrowing date. Control sows did not receive
any ...