Ensiling characteristics, structural and nonstructural carbohydrate composition and enzymatic digestibility of Napier grass ensiled with additives.
Ensiling characteristics, structural and nonstructural carbohydrate composition and enzymatic digestibility (ED) of Napier grass silage was examined. Napier grass ensiled with no additive control, 0.2% formic acid, 0.4% molasses, and 0.3% fibrolytic enzyme for, 7, 30, 60 and 90days. Additives increased lactic acid, soluble carbohydrate and decreased all of lignocellulosic contents except acid detergent lignin and pH than control. The highest value of nonstructural carbohydrate and large reduction in lignocellulosic contents was observed in formic acid and fibrolytic enzyme silage respectively. The content of glucose and fructose showed rapid drop in the first 7days of ensilage. Ensilage decreased lignocellulosic contents and increased ED compared to fresh material. The ED of formic acid and molasses silage was significantly higher than control and fibrolytic enzyme silages in all tested days. In summery the ensiling quality structural and nonstructural carbohydrate and ED value of mature Napier grass silage improved through additives.
Institute of Ensiling and Processing of Grass, Nanjing Agricultural University, Nanjing 210095, China.
Seare T
ST
Desta
Institute of Ensiling and Processing of Grass, Nanjing Agricultural University, Nanjing 210095, China.
XianJun
X
Yuan
Institute of Ensiling and Processing of Grass, Nanjing Agricultural University, Nanjing 210095, China.
Junfeng
J
Li
Institute of Ensiling and Processing of Grass, Nanjing Agricultural University, Nanjing 210095, China. Electronic address: shaotaola@163.com.
Tao
T
Shao
D002241:Carbohydrates / Q000032:analysis; D031782:Pennisetum / Q000737:chemistry*; D012820:Silage / Q000032:analysis / Q000145:classification*
D002241:Carbohydrates
Additives; Enzymatic digestibility; Napier grass; Nonstructural carbohydrate; Structural carbohydrate