Study on the dry matter digestibility of domestic herbage by pepsin-cellulase technique, 2; cell wall constituents and dry matter digestibility in wild legumes
1989
Kim, D.J. | Kim, Y.K. (Donga Univ., Pusan (Korea R.). Coll. of Agriculture) | Maeng, W.J. (Konkuk Univ., Seoul (Korea R.). Coll. of Animal Husbandry)
The change of the chemical components and dry matter digestibilities of wild legumes (Cassia minosoides, Vicia angustifolia, Robinia pseudoacacia, Lespedeza bicolor, Pueraria thunbergiana) grown in the mountainous area, Kyungsangnamdo province was determined by the advanced stage of maturity. Samples were dried at 70deg C for 24hr and ground to pass a l-mm screen. Samples were subjected to the determination of the crude protein (Nx6.25), crude ash, neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), and dry matter digestibility (DMD) by pepsin-cellulase technique. The energy values (total digestible nutrients, TDN; digestible energy, DE; metabolizable energy, ME) were calculated by DMD of pepsin-cellulase technique. The crude protein of wild legumes were ranged 17.49 %-25.74 % and the crude protein had a tendency to decrease by advanced stage of maturity. The crude ash of wild legumes were ranged 5.24 %-10.18 % and the crude ash was not differentiated by advanced stage of maturity. The NDF of wild legumes were ranged 51.94 %-58.97 % and the NDF was increased by advanced stage of maturity (p0.05). The ADF of wild legumes were ranged 30.64 %-39.95 % and the ADF was increased by advanced stage of maturity (p0.05). The ADL of wild legumes were ranged 7.24 %-14.63 % and the ADL was increased by advanced stage of maturity (p0.05). The DMD of wild legumes were ranged 44.48 %-61.80 % and the DMD was decreased by advanced stage of maturity (p0.05). The calculated energy (TDN, DE. and ME) values of wild legumes were decreased by advanced stage of maturity. Regression equation and correlation coefficient of wild legumes between ADL (Y) and crude protein (X) were Y
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