文章基本信息

标题：Evaluating Effects of Natural Plant Extract on Ruminal Fermentation Using in vitro Gas Production Technique
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作者：Mohammad Salamatazar ; Ramin Salamat Doust-Nobar ; Naser Maheri Sis 等
期刊名称：Pakistan Journal of Nutrition
印刷版ISSN：1680-5194
电子版ISSN：1994-7984
出版年度：2012
卷号：11
期号：6
页码：561-565
DOI：10.3923/pjn.2012.561.565
出版社：Asian Network for Scientific Information
摘要：The aim of this study was to determine effects of the increasing concentrations of thyme m ethanolic extract (0 and 0.3 ml/30 ml buffered rumen fluid) on Soybean Meal (SBM) degradability were studied by in vitro gas producing techniques. Fermentation of treatment samples were carried out with rumen fluids obtained from three mature cannulated steers in times of 2, 4, 6, 8, 12, 24, 48, 72 and 96 h were performed. The results showed that gas volume at 72 h incubation time (for 200 mg dry samples), of soybean meal and thyme m ethanolic extract (0.3 ml/30 ml buffered rumen fluid) were 62.91 and 37.64 (ml/200 mg DM) respectively. The gas production from soluble fraction (a), the gas production from insoluble fraction (b), rate constant of gas production during incubation (c) and the potential gas production (a+b) contents of soybean meal were 4.42 (ml/200 mg DM), 67.1 (ml/200 mg DM), 0.113 (ml/h) and 71.52 (ml/200 mg DM), while for thyme m ethanolic extract (0.3 ml/30 ml buffered rumen fluid) were 1.006 (ml/200 mg DM), 42.8 (ml/200 mg DM), 0.033 (ml/h) and 43.81 (ml/200 mg DM) respectively.