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Effect of stage of harvest and fineness of chopping on the voluntary intake and digestibility of maize silage by young beef cattle

  • J. M. Wilkinson (a1), Ines M. Penning (a1) and D. F. Osbourn (a1)

Abstract

Whole-crop maize was harvested at 20% (L), 29% (M) and 38% (H) dry-matter (DM) content, chopped to 7·67 mm (F) or 33·3 mm (C) average particle length and ensiled. The six silages were offered ad libitum to 36 entire male calves (initially 96 kg live weight), together with supplements of urea and dried ryegrass, for 42 days. Voluntary intake and the apparent digestibility of the diets were measured. Intake of DM was not affected by the DM content of the silages, but was higher for F than C by 6·6% (P<0·01). Apparent digestibility of DM, organic matter and cell walls decreased with increasing silage DM content (P<0·001) and was higher for F than C (P < 0·01).

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Effect of stage of harvest and fineness of chopping on the voluntary intake and digestibility of maize silage by young beef cattle

  • J. M. Wilkinson (a1), Ines M. Penning (a1) and D. F. Osbourn (a1)

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