INSTAR CULLING. “The cost-benefit logic of this type of polyculture husbandry has striking analogies with human farming practices based on slaughtering young animals for meat to maximize milk-production by a carefully regulated adult livestock population.”
http://www.biomedcentral.com/1471-2148/12/106?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+BMCUMCG+(BioMed+Central+Publications+by+University+Medical+Center+Groningen)