BEEF COW EFFICIENCY- REVISITED

摘要

It is comforting to address an issue with a historical signature, e.g., information addressing efficiency being presented by Armsby and Fries (1911). They observed that "type" of an animal affected the ability of that animal to convert feed to weight.Kleiber (1936) identified potential approaches that might affect the efficiency of food utilization by animals. At the symposium sponsored by the British Society of Animal Production with the topic of the relationship between size and efficiency, Robertson (1973) concluded that efficiency must be considered in terms of the function of the producing units. Dickerson (1978) aggregated components of the production cycle to define efficiency in a systems concept In 1984, Michigan State University and Colorado State University sponsored the "Beef Cow Efficiency Forum" addressing issues such as definition of efficiency, both in biological and economic terms and identification of factors contributing to observed differences. A workshop implemented to evaluate the current awareness of efficiency of food utilization met in Armidale, Australia in May, 2000.