thiamin increased ruminal protozoal protein yield whereas the yield of ruminal bacterial protein was decreased, and the ratio of protozoal protein and bacterial protein was significantly increased;
硫胺素提高了原虫蛋白的产量而降低了细菌蛋白的产量,因此原虫与细菌的比值极显着提高;
the ruminal protozoal is the important component of the ruminal microorganism. they influence the digestion and utilization of carbohydrate, nitrogenous material, mineral and vitamin in feed directly.