Measures such as residual feed intake(RFI)have been increasingly considered to select cattle with superior feed efficiency,as it is a characteristic of feed efficiency calculated as the difference between observed int...
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Measures such as residual feed intake(RFI)have been increasingly considered to select cattle with superior feed efficiency,as it is a characteristic of feed efficiency calculated as the difference between observed intake and estimated intake considering metabolic weight and the weight *** feed intake is obtained through the multiple regression equation of observed consumption on metabolic mean live weight and weight *** standard was shared among animals into one herd selected for low RFI(high efficiency)and compared to the one selected for high RFI(low efficiency).There was no correlated response in weight per year and in weight gain,and the effectiveness of low RFI selection in reducing feed costs was proven without affecting ***,selection of animals with negative RFI is not done by selecting animals directly according to the size of the viscera,rather it is done indirectly,that is,when selecting the most efficient animals and normally these animals already have the smallest viscera *** RFI is a trait that presents genetic variability,selectable to improve and has moderate heritability,between 0.30 and *** RFI is important because it reduces the direct economic impacts of reduced feed intake,as well as the effects of environmental impact on reducing methane emissions from enteric fermentation of ruminants.
1997年至2008年间圣安德烈指导了旨在鼓励公共参与城市投资决策过程的项目,该项目将预算项目的参与实施和'受压迫者的戏剧'相结合。本研究意图评估其美学和教育观点,研究的具体目标是明确在指导戏剧项目时在美学和教育方向上的选择,其目的是为了促进决策过程中的公共参与。社会学家Cecheti(2004)和Baiocchi(2006)关于美学体验有助于促进参与决策的研究成果是本研究的主要关注点。研究方法主要采用了定性研究(Maxwell,1996),案例研究(Stake,1995),以及辅助评估所收集到的材料的话语分析(Martins and Theophilo,2007)。一些访谈表明'受压迫者的戏剧'有助于参与过程中的认同和相异性表达,这样就有助于提升公众在与更有力的意见表达相沟通时表达他们需求的能力。此外,结果表明尽管'受压迫者的戏剧'不得不适应参与预算决策的全体会议的条件,不过这个空间的象征性代表是允许作出修改的。这也揭示了'受压迫者的戏剧'在整体的预算会议期间所呈现出的美学和教育学面貌。尤其值得注意的是戏剧强烈的主观性和分析性体现在预算教育的过程中。
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