363 In Vitro dry Matter and Fiber Digestibility of Different Varieties of Peanut Tops and Bermuda Grass Forage

Abstract The objective of the current study was to evaluate in vitro dry matter and fiber digestibility, gas, ammonia N volatile fatty acid production peanut tops from seven cultivars, CB91-1, 010-13, IAC322, 13-D, 13-1014, 886 GA-06G, grown state Georgia, USA, Bermuda grass. top samples were harvested towards end growing season at about 125 days after planting pods removed. grass 4 weeks regrowth. Fresh cut analysed for (DM) content then DM fibre digestibility. Hydrogen, methane, pH, ammonia, total gas acids (VFA) measured 24 hours incubation. Analysis variance performed using General Linear Model procedures Minitab Statistical package. varieties contained an average 165.4 g/kgDM crude protein, greater calcium potassium less phosphorus than There no significant differences (P > 0.05) hydrogen, ammonia-N production. However, NDF ADF significantly more digestible < varieties. did not differ digestibility 0.05). IAC322 had difference acetate contents all GA-06G variety greatest propionate butyrate content. CB91-1 least amount propionate, isobutryate, butyrate, isovalerate valerate compared with other Total VFA similar, while that lowest A:P ratio value samples.