Changes of chemical composition of leaf and stem with advancing maturity, and effects of various treatments at the ensiling time on fermentative quality of sesbania rostrata (Sesbania rostrata)
Enishi, O. (Hokuriku National Agricultural Experiment Station, Joetsu, Niigata (Japan)) | Shijimaya, K. | Kariya, Y. | Ikeda, K. | Murai, M.
Experiments were carried out to determine the changes of chemical composition of plant parts with advancing maturity, and efficient methods for conserving sesbania rostrata (Sesbania rostrata) as silage. The contents of crude protein (CP) of stem and whole plant decreased and cell wall (OCW) and acid detergent fiber (ADF) of whole plant mostly increased with advancing maturity. The CP content of sesbania at 74 days after seeding was about two thirds of the value observed at 60 days after seeding. The contents of OCW and ADF decreased and in vitro dry matter digestibility increased by the cellulase treatment in bothsilages made at 60 and 80 days after seeding. The pH value, acetic acid content and the percentage of the volatile basic nitrogen to total nitrogen (VBN/TN%) decreased and lactic acid content increased by the cellulase treatment in the silage made at s60 and 80 days after seeding. On the other hand, the wilting and crushing of the material did not have any apparent effect on fermentative quality of the silage. The silages prepared by adding both lactic acid bacteria and cellulase showed similar quality with those treated only with cellulase. From the above, it was concluded that sesbania should be harvested at an early stage of maturity from the nutritional view point and that cellulase addition was more effective than the other treatments to make high quality silage from sesbaniaShow more [+] Less [-]