DOI QR코드

DOI QR Code

NUTRITIVE VALUE OF NAPIER GRASS (PENNISETUM PURPUREUM SCHUM.) SILAGE ENSILED WITH MOLASSES BY GOATS

  • Yokota, H. (Department of Grassland Science, The Farm, School of Agriculture, Nagoya 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 : 1991.08.31
  • Accepted : 1991.11.25
  • Published : 1992.03.01

Abstract

Napier grass (Pennisetum purpureum Schum.) harvested at an early growth stage was ensiled with 4% of molasses in a polyethylene bag silo which contained 15 kg of chopped forage each. Dry matter (DM) content of the silage was so low as 14.75%, although chemical quality of the silage was very high. Ratio of ammonia nitrogen to total nitrogen was 6.59%, and the pH value of the silage was 3.79. Nutritive value of the silage was estimated using goats and compared to that of a timothy hay as a reference ration. Feeding level of each rations was adjusted to a level of nitrogen (N) recommendation. DM and N digestibilities of the silage were 65.0 and 54.5%, respectively, but those of the timothy hay were 37.6 and 37.2%. Feeding of the napier grass silage maintained body weight and kept positive N retention. Ammonia N concentration in the rumen fluid in goats fed the napier grass silage increased after feeding, but blood urea concentration was constant. Feeding of the timothy hay did not increase ammonia N concentration in the rumen fluid, but increased blood urea concentration. These facts indicated that the napier grass silage had enough digestible DM and N for maintenance ration to goats.

Keywords

Napier Grass;Pennisetum purpureum Schum.;Silage;Nutritive Value;Goat

Cited by

  1. Fermentation Quality of Round-Bale Silage as Affected by Additives and Ensiling Seasons in Dwarf Napiergrass (Pennisetum purpureum Schumach) vol.6, pp.4, 2016, https://doi.org/10.3390/agronomy6040048