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NUTRITIONAL QUALITY OF WHOLE CROP CORN FORAGE ENSILED WITH CAGE LAYER MANURE. I. QUALITY, VOLUNTARY FEED INTAKE AND DIGESTIBILITY OF THE SILAGES IN GOATS

  • Kim, J.H. (Laboratory of Feed Science, Department of Animal Science, College of Agriculture, Gyeongsang National University) ;
  • Yokota, H. (Department of Grassland Science, The Farm, School of Agriculture Nagoya University) ;
  • Ko, Y.D. (Laboratory of Feed Science, Department of Animal Science, College of Agriculture, Gyeongsang National University) ;
  • Okajima, T. (Department of Grassland Science, The Farm, School of Agriculture Nagoya University) ;
  • Ohshima, M. (Department of Grassland Science, The Farm, School of Agriculture Nagoya University)
  • Received : 1992.05.12
  • Accepted : 1992.10.02
  • Published : 1993.03.01

Abstract

With the purpose to utilize cage layer manure (CLM), whole crop corn forage was ensiled with 30% CLM (MS silage) and without CLM (CS silage). MS silage was significantly (p < 0.05) higher in pH value, total VFA, propionic and butyric acids, and the ratio of ammonia nitrogen to total nitrogen, but lower (p < 0.05) in lactic acid and water soluble carbohydrate (WSC) contents than CS silage. Digestibility was evaluated using Shiba strain Japanese goats. Urea was supplemented to CS silage at feeding to adjust nitrogen intake to MS silage (US silage). There were no differences in digestibilities of dry matter (DM) and energy among the three silages. However, US silage showed higher (p < 0.05) digestibility of crude protein, but digestibilities of NDF, ADF, hemicellulose and cellulose were higher (p < 0.05) in MS silage. Nitrogen retention was positive in US and MS silages, but it was negative in CS silage. Voluntary feed intake of goats was 11.02, 12.03 and 13.34 g of DM per metabolic body weight ($kg^{0.75}$) for 10 minutes, for CS, US and MS silages, respectively.

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