Abstract
The similarity of world demographic evolution to a classic microbial growth curve is undeniable. Exactly like any microbe growing in a finite system, the humanity is depleting the Earth’s nutrients and suffering the consequences of its own metabolites accumulation. The objective of this work was to diagnose the loss of nutrients that occurs in the production process of animal products - in this case, specifically, eggs. Fitting results from international databases by mathematical models, the behavior of the main nutrients consumed by birds in the feed and nutrients available in the eggs produced were compared using the Practical Modeling Program at the Faculty of Veterinary Medicine of Araçatuba - UNESP. The egg mass produced corresponds to less than half of the feed mass that the bird consumes throughout the production cycle. The protein contained in this egg mass corresponds to one third of the total protein contained in the ration necessary for these eggs production. The metabolizable energy made available in the eggs corresponds to just over one fifth of the metabolizable energy contained in the total feed consumed by the birds. These data demonstrate the need for awareness and change of paradigms in the various sectors of the egg production chain, as well as in other animal foods production systems. Research and development efforts must take this reality into account and realign their goals, aiming to optimize the efficiency of nutrient production processes and minimize the production of undesirable compounds, and, thus, delay the ecosystem imbalance and degradation process.
Presenters
Marcos Franke PintoAssociate Professor, Animal Production and Health Department, São Paulo State University - School of Veterinary Medicine, São Paulo, Brazil Laís Celemi
Mestrado , Medicina Veterinária, UNESP , São Paulo, Brazil Max José De Araujo Faria Junior
Associate Professor, Department of Animal Production and Health, São Paulo State University - Unesp, São Paulo, Brazil Manoel Garcia Neto
Professor and Researcher, Department of Animal Production and Health, São Paulo State University, São Paulo, Brazil Felipe Ponsano Franke
Student, Science and Technology, UFABC, São Paulo, Brazil
Details
Presentation Type
Theme
Economic, Social, and Cultural Context
KEYWORDS
LAYERS,EGGS,FEED-TO-FOOD CONVERSION,NUTRIENTS,NUTRICIONAL COST, NUTRIENT EFFICIENCY
