Abstract
The current study was carried out to investigate the effect of green tea as feed additive in diets on gas production and DM degradation using batch culture technique. Three experimental diets were used as follow: Control diet, GT1; control diet supplemented with 2% green tea, GT2; control diet supplemented with 4% green tea, and GT3; control diet supplemented with 8% green. The results showed no significant differences between control diet and other groups on rumen pH values and DM degradation. While, adding green tea as 2% of DM significantly declined total gas production and methane parameters as compared with other experimental groups. The results of the current study suggested that low supplementing level of green tea (2% of DM) had a potential positive impact in ruminant diet.