پديدآورندگان :
Baghdadi Ali 1Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Malaysia , A. Halim Ridzwan 1Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Malaysia , Ghasemzadeh Daghigh Ali 1Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Malaysia , Sakimin Siti Zaharah 1Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Malaysia
كليدواژه :
Ammonia N , corn , legume silage , crop combination , fermentation characteristics , pH.
چكيده فارسي :
Corn silage has become more popular as high quality silage for ruminant animals around the world. Seed proportion of intercropping components is a factor affecting silage quality. An experiment was carried out to evaluate effect of different planting proportions of corn and soybean in terms of silage volatile fatty acids (VFA) profiles. In this experiment, corn-soybean combinations of 3:1, 1:1 and 1:3 in addition to monocrops of corn and soybean were evaluated. The crop planting proportions had significant effects on silage volatile fatty acids of silage. Increase ratio of soybean resulted in an increase in lactic acid and pH of the mixed silage. Sole soybean gave significantly higher lactic acid (3.57%) and pH of silage (4.33) compared to all other treatments but dry matter concentration was significantly higher in corn monocrop silage (34.34%) than other treatments. The propionic acid and butyric acid content of soybean monocrop and intercrops silage were in all cases higher than sole corn silage. Legumes are good source of protein and legumes can be mixed with corn to improve silage quality and, thus, the costs of high quality silage production can be lowered.
