Abstract

Producing enough food to properly nourish the world population without crippling the planetary ecosystem is a great challenge. In livestock production, many efforts are being made in various science and technology areas involved like genetics, nutrition, ambience and management, even raising questioning about the ethical limits of technological development considering the inter-species relation. But one rarely approached aspect is the inefficiency of the vegetal nutrients to animal origin food conversion process. The handling of the imbalance caused by human overpopulation on the planet and its food necessities essentially involves making the dynamics of all the variables involved in the process of producing animal origin nutrients as transparent as possible.