Abstract

Previous work reported at last years' conference (Hyslop, Offer and Barber, 1989) has demonstrated that the inclusion of molassed sugar beet shreds (MSBS) with malt distillers grains (draff) at ensiling; greatly reduces dry matter loss and enhances animal performance compared with ensiling draff alone. It has also been observed that draff may comprise up to 30% of dietary DM in silage based complete diets for dairy cows; without loss of performance (Hyslop and Roberts, 1989). This experiment examines the long term technical and economic consequences of replacing barley and soya with draff plus additional minerals in dairy cow diets. In addition; a comparison is made between draff ensiled alone, or in conjunction with MSBS.

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