Effect of Heat Processing of Rubber Seed Kernel on In Vitro Rumen Biohydrogenation of Fatty Acids and Fermentation

The aim of this study was to assess the effect rubber seed kernel heat processing on in vitro rumen biohydrogenation fatty acids and fermentation. experiment conducted with a completely randomized design (CRD). inclusion RSK at 0% (CON) 20% different methods as follows: Raw (RAWR), roasted (ROR), microwave irradiated (MIR), were heated hot air oven (RHO) total mixed ration (TMR) diets. hydrogen cyanide (HCN) reduced using methods. had no cumulative gas production 96 h, from insoluble fraction (b), or degradability (p > 0.05), whereas it immediately soluble (a) constant rate for (c) < 0.01). did not influence ruminal pH, volatile acid (VFA), VFA proportions 0.05). ammonia-nitrogen (NH3-N) 0.04) while increasing bacterial population 0.02). Heat treatment linoleic (C18:2 cis-9,12 + tran-9,12) RHO increases oleic (C18:1 cis-9 tran-9) linolenic (C18:3 cis-9,12,15) concentrations In conclusion, unsaturated (UFA), especially C18:3 C18:1.