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Precision-feeding system as alternative for pig production in hot climate countries

Grant number: 15/05241-1
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): September 01, 2015
Effective date (End): March 04, 2019
Field of knowledge:Agronomical Sciences - Animal Husbandry - Animal Production
Principal researcher:Luciano Hauschild
Grantee:Luan Sousa dos Santos
Home Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
Associated research grant:12/03781-0 - Sustainable precision feeding systems (PFS) for swine and poultry: estimating real-time individual nutrient requirements (pigs) and evaluation of the PFS (pigs and poultry), AP.JP
Associated scholarship(s):17/10278-7 - Exploring the feeding behavior adaptions of growing pigs reared under conventional and precision feeding technique: heat stress and thermoneutral conditions, BE.EP.DR


In the current context of global warming and increasing expansion and intensification of production systems. In developing countries, located in tropical regions predominantly hot, it is assumed that farm animals will be increasingly exposed to heat stress conditions. Thus, the objective of this project is to evaluate the potential use of a precision feeding system (Automated Intelligent Precision Feeder - AIPF) as technological and nutritional strategy to mitigate the effects of heat stress in growing pigs. Twenty four barrows weighing approximately 25 kg will be used and will have a total period of 66 days (10 days for adaptation + 56 days of experiment) in chambers with temperature control. The animals will be housed in individual cages in a completely randomized design with factorial arrangement of treatments 2 × 2 (two thermal environments: thermoneutral environment of 22 ° C and acute heat stress 34 ° C, and two feeding programs: conventional feeding by phases and precision feeding diets adjusted daily). For this purpose, it is intended to compare performance, hormonal and physiological parameters (body temperature, respiratory rate, thyroid hormones), protein turnover using the end-product method with 15N-glycine, through the technique of stable isotopes in growing pigs. This project is expected to contribute to the further development of the AIPF in environmental conditions of high temperature, thus contributing to the sustainability and viability of pig production systems in tropical countries such as Brazil. (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)
DOS SANTOS, LUAN SOUSA; REIS FURTADO CAMPOS, PAULO HENRIQUE; DA SILVA, WELEX CANDIDO; VEIRA, ALINI MARI; FRAGA, ALICIA ZEM; CAETANO, RAPHAEL PERINI; HAUSCHILD, LUCIANO. Performance and carcass composition of pigs from two sire lines are affected differently by ambient temperature. ANIMAL PRODUCTION SCIENCE, JAN 2021. Web of Science Citations: 0.
DOS SANTOS, LUAN SOUSA; POMAR, CANDIDO; REIS FURTADO CAMPOS, PAULO HENRIQUE; DA SILVA, WELEX CANDIDO; GOBI, JAQUELINE DE PAULA; VEIRA, ALINI MARI; FRAGA, ALICIA ZEM; HAUSCHILD, LUCIANO. Precision feeding strategy for growing pigs under heat stress conditions. JOURNAL OF ANIMAL SCIENCE, v. 96, n. 11, p. 4789-4801, NOV 2018. Web of Science Citations: 1.
SANTOS, L. S.; HTOO, J. K.; FRACAROLI, C.; SILVA, W. C.; GOBI, J. P.; VEIRA, A. M.; BARBOSA, N. A. A.; HAUSCHILD, L. Bioavailability of di-peptide DL-methionyl-DL-methionine in comparison to DL-methionine in weaned and growing pigs. ANIMAL FEED SCIENCE AND TECHNOLOGY, v. 241, p. 94-101, JUL 2018. Web of Science Citations: 2.

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