Authors : F. Kafilzadeh , F. Hozhabri and A. Kabirifard
Abstract: Availability of roughage constituents to the rumen microbes and supplying adequate nutrients intensely depends on their fibrous properties. Manipulation of these potentially feedstuffs are the great challenges to the nutritionists. Biological upgrading of crop residues is one of the approaches to enhance the release of plant nutrients in the rumen environment by the microbes. Effectiveness of Pleurotus florida on gas production properties of untreated and fungal treated Wheat Stubble (WS) and Date Palm Leaf (DPL) at 2, 4, 6, 8, 12, 24, 48, 72 and 96 h was investigated. Cumulative gas production from untreated WS was significantly higher than treated WS. This effect was not observed in DPL. Total gas productions, irrespective of substrate, in control, mycelial and harvesting stages were significantly different (35.83, 29.50 and 27.45 mL, respectively). Potential gas production was not affected by fungal treatment; however, it was significantly lower in DPL than in WS. Rate of gas production (c) significantly decreased at harvesting stage compare to the control in both substrates. In addition, "c" was higher in WS than in DPL. Predictive Effective Degradability (ED) of WS at different outflow rates was significantly higher than those observed for DPL. As a result of this experiment, it can be concluded that Pleurotus florida treatments of both WS and DPL resulted in no improvement in gas production properties of these 2 roughages.
F. Kafilzadeh , F. Hozhabri and A. Kabirifard , 2009. Effect of Pleurotus florida on In vitro Gas Production of Wheat Stubble and Date Palm Leaf. Research Journal of Biological Sciences, 4: 37-41.