Effect of replacing wheat straw with urad straw in TMR on rumen fermentation and enteric methane emission in adult cattle

Abstract

The present study was carried out to evaluate the effect of replacing wheat straw with urad straw in total mix ration on rumen fermentation & methane emission in adult cattle. The study was conducted on 15 adult cattle for 70 days by splitting them into three groups of five each. In control group (T1) 70% wheat straw and 30% concentrate mixture were fed to experimental cattle. Animals in group T2 were fed 35% wheat straw, 35% urad straw and 30% concentrate mixture and in group T3 animals were fed 70% urad straw and 30% concentrate mixture. The cattle were fed total mix ration as per ICAR (2024) feeding standard to fulfill their nutrient requirement. Rumen fermentation parameters were also statistically (p>0.05) similar among the treatment groups except that total volatile fatty acids (TVFA) and total nitrogen concentration were significantly (p