This study aims to compare the utilization by the buffaloes and cows photna. In countries experiencing problems when tying sathai food during the dry season, is why farmers use rice straw that are cheap and easy to find leads to the animals. In research studies, the comparison of digestion and the buffaloes by NPN supplement trials, determine the concentration of the liquid ammonia in the rumen stomach and PD excretion found that cattle have the ability to Recycle urea in the rumen stomach better than TFD because of the ecological factors in the rumen of cattle, there are a number of stomach treated than in Waw.
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