TY  - THES
TY  - BOOK
T1  - The in vitro gas production and  ruminal fermentation pattern of various agricultural by-products
A1  - Noor Adilah Redzuan
LA  - English
UL  - http://discoverylib.upm.edu.my/discovery/Record/51376
AB  - Methane is the primary greenhouse gas produced from ruminant production, accounting for 37% total arthropogenic methane (CH4) emissions. Methane production is essential for effective degradation of organic matter, but also represents an energy loss of 2 – 12% gross energy intake.  Consequently,  information on methane and fermentation pattern of feddstuffs is important which can mitigate CH4 production emissions for the benefit of th environment and animal.  This study evaluated the in vitro emissions and ruminal fermentation pattern of guinea grass (GG), rice straw (RS), sugarcane bagasse (SCB), palm kernel cake (PKC), oil palm fronds (OPF), and oil palm leaflets (OPL) using in vitro gas production technique for a period of 48 hours using goat rumen liquor.  Methane gas production (MGP), rumen pH and volatile fatty acid (VFA) for each treatment were recorded at 6, 12, 24 and 48 hours.  Mean total VFA production from SCB was significantly higher at compared to other treatments.  PKC recorded the highest ruminal concentration of acetate (17.85 mmol/ml) compared to guinea grass and rice straw.  The propionate for SCB treatment recorded the highest concentration compared to other treatment (p <0.05).  Mean total MGP   for GG, RS, SCB, PKC, OPF and OPL were 3.65, 3.66, 3.23, 3.25, 3.53 and 3.51ppm/ml respectively.  There were no significant differences between treatments.  Results from this study indicated that feeding these agricultural products increases methane into the atmosphere.
CN  - FPV 2014 59
ER  -