文章基本信息

标题：Methane Production Potential and Nutritive Value of Indigenous Browses from mid Rift Valley of Ethiopia
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作者：Amsalu Sisay ; Tegene Negesse and Ajebu Nurfeta
期刊名称：Pakistan Journal of Nutrition
印刷版ISSN：1680-5194
电子版ISSN：1994-7984
出版年度：2017
卷号：16
期号：10
页码：789-796
DOI：10.3923/pjn.2017.789.796
出版社：Asian Network for Scientific Information
摘要：Objective: This study was conducted to evaluate the chemical composition , in vitro gas and methane (CH₄) production of eight tannin-containing browses species from Rift Valley of Ethiopia. Materials and Methods: Leaves of Acacia seyal , Acacia senegal , Acacia tortilis , Prosopis juliflora , Millettia ferruginea , Vernonia amygadalina , Croton macrostachyus and Cordia africana were collected, oven-dried and ground to 1.0 mm for in vitro gas and chemical analysis . General linier model procedure of SAS, Version 9.2 was used for statistical analysis. Results: The highest crude protein (CP) contents of the browses ranged from 13-29% was observed for Acacia senegal and lowest for Acacia seyal . The nutrient detergent fiber (NDF), acid detergent fiber (ADF) and acid detergent lignin (ADL) were highest for Cordia africana and lowest for Acacia seyal . The CT content for Acacia seyal , Acacia tortilis and Millettia ferruginea were higher (p<0.05) than the remaining species. Acacia seyal produced the highest gas volume and Prosopis juliflora produced the lowest. The lowest (p<0.05) CH₄ percentage of total gas was recorded from Acacia seyal . The CH₄ percentage from Cordia africana was higher (p<0.05) than Acacia seyal and Acacia tortilis . Inclusion of polyethylene glycol (PEG) significantly improved gas production and organic matter digestibility (OMD) of browses. Conclusion: The high gas production and OMD of Acacia seyal , coupled with its lowest percent of CH₄of total gas produced during fermentation would make the browse potential supplement of low quality roughages while reducing enteric CH₄ emissions.