Korean Journal of Veterinary Research 1982;22(2):111-114.
An Estimation on the Efficiency of Utilization of Sulfur Coated Urea and Diuredio Isobutane in Vitro
Ho-Il Lee, Jae-Ku Rhee, In-Hyuk Choi
Department of Veterinary Medicine, College of Agriculture, Jeonbug National University
In Vitro에 의한 유황피복요소(硫黃被覆尿素)와 Diuredio Isobutane의 이용효과(利用效果) 판정(判定)
이호일, 이재구, 최인혁
전북대학교 농과대학
Abstract
In order to explore more efficient protein substitutes by improving the utilization of non-protein nitrogen compounds in ruminants, the experiment was undertaken. The effects of sulfur coated urea (SCU) and diuredio isobutane (DUIB) in the ruminal fluid on the concentration of $NH_3-N$, the total count of the ruminal ciliates and pH value were estimated in vitro. The results obtained from the experiment were as follows: 1. The pH of the media of the group added diuredio isobutane and sulfur costed urea tends to decrease slightly at 9 hours after the incubation, but no pH changes were observed in the media added urea alone. 2. The number of the ciliates in the ruminal fluid was slightly increased 9 hours after the incubation in all groups. 3. The concentrations of $NH_3-N$ in the ruminal fluid were gradually increased according to the incubation in vitro showing 418, 431 and $627{mu}g/ml$ in the group added diuredio isobutane and 428, 569 and $792{mu}g/ml$ in the group added sulfur coated urea at 0, 0.5 and 9 hours after the incubation, respectively.
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