The sprout inhibitor Chlorpropham (CIPC) [isopropyl N-(3 chlorophenyl) carbamate] was found to be an effective sprout inhibitor in stored swedes (Brassica napus L.) under certain conditions. It was ineffective and unnecessary in swedes stored from November to April but necessary for those stored in clamps from March to July. CIPC did not, however, prevent rotting nor arrest normal chemical changes. Rotting developed because of the restricted ventilation necessary for successful use of CIPC and was more severe in mechanically than in hand-harvested roots. The main advantage of using CIPC to extend the storage and feeding life of swedes is that the absence of sprouts makes the handling of the roots much easier.
Friesian bulls fed swedes preserved with CIPC and supplemented with 50% conconcentrates gave satisfactory growth compared with similar bulls offered a diet containing only barley.