In Vitro and in Sacco Evaluation of Healthy and Diseased Groundnut (Arachis hypogaea) Haulms

The chemical composition, in vitro and in sacco DM degradability of healthy groundnut haulms was compared with diseased groundnut haulms (TMV-2 variety) using rumen fistulated buffaloes (BW=340±25 kg). The IVDMD values were 58.07 and 43.06% for healthy and diseased groundnut haulms. The mean values for in sacco DM degradability were 55.50 and 33.85; 60.23 and 42.65; 65.30 and 49.77; 67.08 and 52.75; and 69.95 and 55.26% at 12, 24, 36, 48 and 72 h of incubation for healthy and diseased groundnut haulms, respectively. The readily soluble fraction (a) was 47.04 and 16.74, insoluble but degradable fraction (b) was 25.38 and 40.39; and rate constant/h (c) was 0.0329 and 0.0451 for healthy and diseased groundnut haulms. Effective degradable DM of healthy and diseased groundnut haulms and with rumen outflow rate of 0.04/h was 58.50 and 38.10%, respectively. The present study indicated that diseased groundnut haulms were inferior in chemical composition, in vitro and in sacco DM degradability than healthy groundnut haulms.