Description
Sorghum is one of the most suitable plants for silage production and becoming an increasingly important forage crop in many regions of the world. Due to its high water-soluble carbohydrates contents (WSC) and low buffer capacity, it is easy to ensile. This study evaluates the effect of adding Lactobacillus plantarum AZZ4 and Pediococcus acidilactici AZZ5 isolated from elephant grass on the fermentation period and chemical composition of sweet sorghum silage. Two strains of Lactobacillus plantarum subsp. Plantarum (AZZ4) , Pediococcus acidilactici (AZZ5), and one commercial bacteria Lactobacillus Plantarum, Ecosyl MTD/1(CB)) were chosen as additives at 6 log colony forming units (cfu)/g of fresh sweet sorghum grass in laboratory silos (1000g). Silos for each treatment were opened after 15,30, and 60d, respectively. Compared to the control, all the isolates improved the silage quality of sweet sorghum silage, indicated by significantly (P < 0.05) lower ammonia nitrogen (NH3-N) content and undesirable microorganism counts, and higher lactic acid (LA) contents and ratios of lactic acid/acetic acid (LA/AA). During ensiling, AZZ4 performed better among all inoculants, indicated by a significantly (P < 0.05) decrease in pH and ammonia- N contents and a higher increase in lactic acid contents.
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effect of Microbial Inoculant on Fermentation Period and Chemical Composition of Sweet Sorghum Silage
Sorghum is one of the most suitable plants for silage production and becoming an increasingly important forage crop in many regions of the world. Due to its high water-soluble carbohydrates contents (WSC) and low buffer capacity, it is easy to ensile. This study evaluates the effect of adding Lactobacillus plantarum AZZ4 and Pediococcus acidilactici AZZ5 isolated from elephant grass on the fermentation period and chemical composition of sweet sorghum silage. Two strains of Lactobacillus plantarum subsp. Plantarum (AZZ4) , Pediococcus acidilactici (AZZ5), and one commercial bacteria Lactobacillus Plantarum, Ecosyl MTD/1(CB)) were chosen as additives at 6 log colony forming units (cfu)/g of fresh sweet sorghum grass in laboratory silos (1000g). Silos for each treatment were opened after 15,30, and 60d, respectively. Compared to the control, all the isolates improved the silage quality of sweet sorghum silage, indicated by significantly (P < 0.05) lower ammonia nitrogen (NH3-N) content and undesirable microorganism counts, and higher lactic acid (LA) contents and ratios of lactic acid/acetic acid (LA/AA). During ensiling, AZZ4 performed better among all inoculants, indicated by a significantly (P < 0.05) decrease in pH and ammonia- N contents and a higher increase in lactic acid contents.
