摘要：The aim of the current experiment was to determine the fermentation characteristics and nutritive value of soybean and corn plants silage either as sole crops or as four different mixtures rates. Two forages were ensiled in plastic bags for 60 days at room temperature as mixtures containing 100:00, 80:20, 60:40; 40:60; 20:80; 0:100 of soybean:corn plant on a fresh weight basis. The resultant silages were evaluated using the chemical analysis and in vitro gas production technique. Ensiling of soybean with whole corn plant has a significant effect on the chemical composition, fermentation parameters, organic matter digestibility (OMD), metabolisable energy (ME) and aerobic stability of the resultant silages. As the proportion of corn plant increase in silage mixture, crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), crude ash (CA), pH, acetic acid, butyric acid contents and aerobic stability decreased while dry matter content (DM), Fleig score (FS), dry matter recovery (DMR), lactic acid, gas production, methane production, ME and OMD of the resultant silages were increased. This study clearly showed that good quality silages with high ME and OMD can be produced with soy-bean:corn plant ratios of 60:40, 40:60 and 20:80. Ensiling of soybean plant with corn plant improved more or less the quality and nutritive value of the resultant silages irrespective of mixing ratio. Ensiling the soybean plant with corn plant overcome some of drawbacks associated with low DM, pH and nutritive value of soybean silage. It can be recommended that soybean plant can be ensiled with corn plant at the ratio of 60:40, 40:60 and 20:80 as green herbage basis. This experiment clearly indicated that high quality silage could be obtained through mixing of soybean plant with corn plant. However, in vivo experiments with ruminants are required to determine the effect of associative effects on animal performance.
关键词：Soybean;Corn;Silage;Nutritive Value;In Vitro Gas production;Aerobic stability
