Effects of moisture content and heat treatment of tropical legume phasey bean (Macroptilium lathyroides) silages on degradability and utilization of nitrogen in the rumen and post-ruminal digestive tracts
2003
Tamaki, M. (Kagoshima Univ. (Japan)) | Kawamoto, Y. | Motomura, T. | Namihira, T. | Miyagi, T. | Nakada, T. | Sonoda, T.
Synopsis Masanobu TAMAKI, Yasuhiro KAWAMOTO, Taku MOTOMURA, Tomoyuki NAMIHIRA, Takasi MIYAGI, Tadasi NAKADA and Tatunobu SONODA (2003) : Effects of Moisture Content and Heat Treatment of Tropical Legume Phasey Bean (Macroptilium lathyroides) Silages on Degradability and Utilization of Nitrogen in the Rumen and Post-ruminal Digestive Tracts. Grassland Science 49, 361-366. The effects of different heat treatments applied for 3 days under 80 deg C and dry matter content of material on dry matter and nitrogen degradability of tropical pasture legume Phasey bean silage were examined by the rumen bag method and pepsin-pancreatin method. The two heat treatments on silage just after ensiling and before opening were conducted on silages of four dry matter contents of 20, 25, 35 and 55%. The results were as follows : 1. As the dry matter content of silages increased, the degradability of dry matter and nitrogen were decreased under both heat treatments. 2. The nitrogen in ADF increased under the heat treatment just after ensiling, as dry matter content of materials increased. 3. The ratio of degradable nitrogen in post-ruminal tracts increased with dry matter content of materials under both heat treatments.
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