This paper examines the discourses and practices of pedigree livestock breeding, focusing on beef cattle and sheep in the UK, concentrating on an under-examined aspect of this – the deselection and rejection of some animals from future breeding populations. In the context of exploring how animals are valued and represented in different ways in relation to particular agricultural knowledge-practices, it focuses on deselecting particular animals from breeding populations, drawing attention to shifts in such knowledge-practices related to the emergence of ‘genetic’ techniques in livestock breeding which are arguably displacing ‘traditional’ visual and experiential knowledges of livestock animals. The paper situates this discussion in the analy...