Premium
Silage fermentation and ruminal degradation of stylo prepared with lactic acid bacteria and cellulase
Author(s) -
Li Mao,
Zhou Hanlin,
Zi Xuejuan,
Cai Yimin
Publication year - 2017
Publication title -
animal science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.606
H-Index - 38
eISSN - 1740-0929
pISSN - 1344-3941
DOI - 10.1111/asj.12795
Subject(s) - silage , cellulase , fermentation , lactic acid , lactobacillus plantarum , food science , chemistry , neutral detergent fiber , dry matter , rumen , zoology , bacteria , biochemistry , biology , hydrolysis , genetics
In order to improve the silage fermentation of stylo ( Stylosanthes guianensis ) in tropical areas, stylo silages were prepared with commercial additives Lactobacillus plantarum Chikuso‐1 ( CH 1), L. rhamnasus Snow Lact L ( SN ), Acremonium cellulase ( CE ) and their combination as SN + CE or CH 1 + CE , and the fermentation quality, chemical composition and ruminal degradation of these silages were studied. Stylo silages treated with lactic acid bacteria ( LAB ) or cellulase, the pH value and NH 3 ‐N ⁄ total‐N were significantly ( P < 0.05) decreased while the ruminal degradability of dry matter ( DM ), crude protein ( CP ), neutral detergent fiber ( aNDF om) and acid detergent fiber ( ADF om) were significantly ( P < 0.05) increased compared to control. Compared to LAB or cellulase‐treated silages, the DM , CP contents and relative feed value ( RFV ), and the ruminal degradability in LAB plus cellulase‐treated silages were significantly ( P < 0.05) higher, but the aNDF om content was significantly ( P < 0.05) lower. CH 1 + CE treatment was more effective in silage fermentation and ruminal degradation than SN + CE treatment. The results confirmed that LAB or LAB plus cellulase treatment could improve the fermentation quality, chemical composition and ruminal degradation of stylo silage. Moreover, the combined treatment with LAB and cellulase may have beneficial synergistic effects on ruminal degradation.