اثر گیاه خارمریم بر هضم‌پذیری و تخمیر میکروبی علوفه سیاه‌شور و ریخت شناسی پروتوزوآ در شتر تک‌کوهانه

This experiment was conducted to study the effect of adding of silybum marianum plant (20, 40 and 60 mg/kg) on digestibility and microbial fermentation of suaeda fruticosa forage and protozoa species in the one-humped camel. fermentation and gas production and estimated parameters were measured by gas production technique and in vitro digestibility was measured by two-stage digestion using two fistulated camels. to investigate the protozoa, samples were removed from the culture and after staining with methylene blue solution, protozoa enumeration and morphology were conducted in different environments. protozoa analysis was conducted using factorial experiment and completely randomized design. the obtained results showed that the addition of silybum marianum to level 60 mg had significant effect on gas production potential of suaeda forage (p < 0.05). partationing factors, microbial biomass, efficiency of microbial biomass, organic matter actually degradable and cell wall degradability was significantly decreased in treatments containing silybum marianum in compared with control (p < 0.05). ammonia nitrogen concentrations was significantly increased in treatments containing silybum marianum (p < 0.05). adding silybum marianum increases the digestibility of dry matter and neutral detergent insoluble fibers in comparison to control. protozoa populations significantly decreased by treatments containing silybum marianum (p < 0.05). according to the result, two species observed in this experiment were diplodinium cameli and epidinium ecudatum. therefore, using silybum marianum plant caused to improve the nutritional value of suaeda forage in the one-humped camel.