Effect of lalsilŪ bacterial inoculants on the pH of corn silage with low dry matter

Abstract: To study the effect of commercial lactic acid bacteria inoculants (Lalsil^®) on the pH during the ensiling of corn silage with low dry matter,this experiment was conducted according to completely randomized design with 3 treatments and 4 replicates in each treatment. Treatments were: 1- control (no additives) 2- treated with Lalsil Mso1 (Lactobacillus plantarum and Propionibacterium acidipropionici applied at 1 × 10⁵ cfu/g of the corn silage) 3- treated with Lalsil Fresh (Lactobacillus buchneri applied at 1× 10⁵cfu/g of the corn silage). pH of corn silage were measured at 1, 3 and 6 weeks after ensiling. Statistical analysis of data was performed using PROC GLM and SAS statistical software. The results showed that DM (Dry matter), CP(Crude protein), NDF(Neutral Detergent Fiber) and ADF (Acid Detergent Fiber) composition of the corn silage were 18.87, 9.37, 61.75 and 25.50%, respectively. The difference between the first and sixth weeks of treatment was significant (P<0.05). In the first and sixth weeks , treatment 1 had highest pH (3.92 and 3.80) and treatment contain Lalsil Fresh had lowest pH( 3.83 and 3.70). There was no significant difference among treatments in the third week. It can be concluded that Lalsil bacterial inoculants could significantly reduced pH of corn silage, While Lalsil- Fresh was reduced pH of corn silage with low dry matter more effectively.

Keywords: corn silage-bacterial inoculants -pH