Chemical composition and in vitro rumen fermentation of ensiled sugar industry coproducts

Authors : Zohreh ZARNEGAR, Seyed Hadi EBRAHIMI, Abbas Ali NASERIAN, REZA VALIZADEH

Pages : 30-38

View : 21 | Download : 10

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :he current study aims to compare sugar beet leaves insert ignore into journalissuearticles values(SBLs); ensiled with sugar beet pulp insert ignore into journalissuearticles values(SBP);, sugarcane molasses insert ignore into journalissuearticles values(SM);, or rock candy juice insert ignore into journalissuearticles values(RCJ); using an in vitro gas production technique. Treatments in the first group included 10% SBP insert ignore into journalissuearticles values(control 1); and control 1 plus 5% SM or RCJ. In the second group, there were 3 treatments, including 20% SBP insert ignore into journalissuearticles values(control 2); and control 2 plus 10% SM or RCJ. The silages with no added soluble carbohydrate insert ignore into journalissuearticles values(SC); sources had significantly higher insert ignore into journalissuearticles values(P < 0.001); pH, buffer value index, and ammonia nitrogen values than the other treatments. However, there was no significant difference between RCJ and SM in their effect on these variables. Adding both levels of SC sources caused an increase in dry matter digestibility compared to those that only included SBL and SBP insert ignore into journalissuearticles values(P < 0.001);. Maximal and rate of gas production from slowly fermentable fraction insert ignore into journalissuearticles values(a$_{2}$); were significantly greater when the substrate contained 85%, 10%, and 5% SBL, SBP, and SC sources, respectively. Using dried SBP and SC sources for the preservation of fresh SBL is recommended; however, with higher levels of SC, the silage may be at risk of spoilage, and it must be less exposed to air.
Keywords : Sugar beet leaves, soluble carbohydrates, sugar beet pulp, silage, rumen fermentation