Study of the effects of Fennel and Cumin Seed Powder different levels on in vitro the gas production and on ruminal fermentation Characteristics of a high concentrate diet

This research was conducted to evaluate the effects of different levels of fennel and cumin seed powder in high-concentrate diets on some in vitro rumen fermentation and gas production characteristics. The treatments were repeated: 1- control (75% concentrate and 25% alfalfa), 2- control diet supplemented with three different levels of cumin and fennel powder (8, 12 and 16 g / kg dry matter feed), at each level of the ratio Different types of fennel and cumin (25% fennel + 75% cumin, 50% fennel + 50% cumin, 75% fennel + 25% cumin). Addition of cumin and fennel powder significantly increased the digestibility cumulative gas and gas production potential (b) (P <0.05), but there was no significant effect on the average gas production rate on different treatments (P <0.05). Ammonia nitrogen was measured by adding different levels and ratios of cumin and fennel powder Significant decrease was observed in control treatment (P <0.05). The mean short chain fatty acids at 8 grams of cumin and fennel powder had a significant increase (P <0.05), However, no significant increase was observed with higher levels of cumin and fennel powder. Based on the results of this study, it can be concluded that adding cumin and fennel powder to high concentrate ration can improve rumen fermentation, digestibility and increase the production of volatile fatty acids, using 8 g of cumin and fennel powder With the ratio of 50% fennel and 50% cumin per kilogram of dry matter, the most significant effects were shown.