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Computational model for growth simulation and optimization of nutritional levels for broilers

Grant number: 16/11172-5
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): July 01, 2016
Effective date (End): December 31, 2019
Field of knowledge:Agronomical Sciences - Animal Husbandry - Animal Nutrition and Feeding
Principal Investigator:Nilva Kazue Sakomura
Grantee:Matheus de Paula Reis
Home Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
Associated research grant:13/25761-4 - Modeling production and nutritional requirements of poultry and fish, AP.TEM


The computational model Avinesp estimates nutritional requirements based on genetic potential and determine feed consumption regarding factors related to environment and diet. The Avinesp outstand from other programs, through consider the nutrient efficiency utilization from Brazilian diets. The Avinesp software takes in account the maintenance used nutrients and the utilization efficiency of lysine, threonine and methionine+cystine, determined at the last thematic project. With the proposed studies on this project will be possible to update the maintenance used nutrients and the utilization efficiency of isoleucine, valine and tryptophan currently being used by the model on Avinesp. Another proposed update is the inclusion of another tool, which will make possible the feed formulation for birds. The tool was developed already and it is in implementation phase, therefore, the pos-doc proposed will be responsible for the correct implementation of the feed formulation tool, that will provide a feed formulation with economic approach. There is also the need for further research to assess the response of birds receiving different protein levels, with the goal of defining the biological and economic optimal protein intake through mathematical models. To achieve these objectives will be conducted two studies of Cobb and Ross males and one for females in the initial stages (1 to 14 days), growth (15 to 28 days) and late (29-42 days). The results of these studies will be incorporated into Avinesp, increasing the tools available, as proposed in the thematic project. With this expansion the Avinesp software will be a growth simulation model of birds with economic analysis. The implementation of this proposal will provide major breakthrough in Avinesp software, which will be available to the community. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
REIS, MATHEUS DE PAULA; SAKOMURA, NILVA KAZUE; TEIXEIRA, IZABELLE A. M. A.; DA SILVA, EDNEY PEREIRA; KEBREAB, ERMIAS. Partitioning the efficiency of utilization of amino acids in growing broilers: Multiple linear regression and multivariate approaches. PLoS One, v. 13, n. 12 DEC 12 2018. Web of Science Citations: 2.

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