文章基本信息

标题：Modelling Agricultural Systems: Applications to Livestock Breeding
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作者：Hattam, Caroline
期刊名称：Journal of Food Distribution Research
印刷版ISSN：0047-245X
出版年度：2006
卷号：37
期号：8
出版社：Food Distribution Research Society
摘要：Traditionally the evaluation of animal genetic traits has focused primarily on production traits and the construction of selection indices. Selection indices, however, fail to consider the effect of management practices and the environment on productivity. Non-production traits are either under-valued or not valued at all. Given the changing demands placed on agriculture and the increased understanding of the effects of agriculture on the environment, this approach can be considered myopic. While techniques are available to link economic and biophysical/environmental models, little has been applied in the context of genetic trait evaluation. This paper therefore explores the potential for integration and the development of methods that capture not only breeding objectives, but also non-production traits. Such an approach should provide greater understanding of the implications of breeding choices and reflect not only the interests of farmers, but of society as a whole.
关键词：Animal genetic traits;economic weights;biophysical models;breeding objectives.