dietary salt ( nacl ) levels ( .2 , .5 % ) , dietary arsanilic acid levels ( 0 , 100 , 200 ppm ) , supplemental copper levels ( 0 , 125 , 250 ppm ) and waste management systems ( oxidation ditch , anaerobic deep pit , anaerobic lagoon ) were compared in this series of studies .
C0206136
dietary salt
C0037494
nacl