Dry matter degradability of fresh grass and silages in the rumen of dairy cow | เธเธฒเธฃเธชเธฅเธฒเธขเนเธเนเธเธญเธเธงเธฑเธเธเธธเนเธซเนเธเนเธเธซเธเนเธฒเธชเธเนเธฅเธฐเนเธเนเธฅเธเธเธเธดเธเธเนเธฒเธเน เนเธเธเธฃเธฐเนเธเธฒเธฐเธฃเธนเนเธกเธเธเธญเธเนเธเธเธก
2007
Angkana Hanbunchong(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Agriculture. Department of Animal Science) E-mail:[email protected] | PenKhae Wanchaithanawong(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Agro-Industry. Department of Biotechnology) | เธชเธธเธเธตเธขเน เธเธดเธเธดเธชเธดเธเธเธฃเธฐเนเธชเธฃเธดเธ(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Agro-Industry. Department of Biotechnology) | Somjit Thanomwongwattana(Rajamangala University of Technology, Pathum Thani (Thailand). Faculty of Agricultural Technology. Division of Animal Science)
Study was conducted to compare degradation of dry matter content of fresh grass and various silages. Split plot in time (main plot LSD) was used as an experimental design, consisting of 4 types of roughagefresh grass (FG), conventional silage (S-1), silage supplemented with molasses (S-2), and silage supplemented with molasses plus lactic acid bacteria at 106 cfu/g fresh grass (S-3). Each silage were ensiled at the periods of 0, 3, 7, 21, 45, 90, and 95 days. Four fistulated cows (87.5 percent HF) were used. Each dairy cows were fed with the experimental feed ad libitum. The experiment was made up 4 periodseach period lasted 8 days. S-2 showed the highest degradation of dry matter content (P LT 0.05) whereas the FG showed the lowest. The periods of ensiling had no effect on the degradation of dry matter content. In addition, the pHs and concentration of NH4-N in the rumens of the cows were not affected by the various of roughages (P GT 0.05)
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