بررسي اثر افزودني هاي مختلف بر كيفيت سيلاژ قصيل جو

The effect of different additives on quality of barley forage silage

To investigate the effects of different additives on fermentation of barley forage silage, an experiment in completely randomized design with 5 treatments were conducted. Treatments were: 1- Barley forage silage, 2- barley forage silage + 5% molasses, 3- barley forage silage + 5% molasses+ 5% urea, 4- barley forage silage+ 0.5% formic acid, 5- barley forage silage+ 0.5% formic acid + 5% molasses. The particles of barley forage were cut in 3-5 cm length and to evacuations of air, the particles were compressed in the 10 litter bucket. After 60 days, silages were prepared. Maximum pH were for barley forage silage, barley forage silage + urea and barley forage silage + formic acid which were 4.78, 5 and 4.72 respectively. Minimum degradability of dry matter was for barley forage silage + molasses (8.83%) and had no significant difference with the other treatments (P<0.05). Measurement of CNCPS model parameters showed a significant difference in crud protein, none protein nitrogen (NPN), soluble crud protein (SP), Bl, B2, B3 and C on barley forage silage+ urea treatments.