Effects of Different Additives on Silage Quality of Napiergrass

Objectives of this experiment were to determine the effects of different additives on silage quality of napiergrass (Pennisetum purpureum). The cultivar of TLG2 with high water soluble carbohydrates was used to making silages added with or without 5 and 10% corn meal or wheat bran, and then treated with or without enzyme. Crude protein, acid detergent fiber, neutral detergent fiber, water soluble carbohydrates and volatile fatty acid contents of silage were determined to evaluate silage quality. From the results, it showed that var.TLG2 could be making good silages without any additives but the dry matter was low. Adding 5-10% corn meal or wheat bran not only increased the dry matter and crude protein content, but also decreased ADF and NDF. Lactic acid was the main preservative organic acid in all silages. The same results were obtained from the control treated with Grasszyme . According to the quality of silages and the cost of additives, it was suggested that adding 5-10% wheat bran was the better choice