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Precision nutrition for sanitary challenged pigs reared in hot climate areas

Grant number: 18/15559-7
Support type:Research Grants - Young Investigators Grants- Phase 2
Duration: May 01, 2019 - April 30, 2024
Field of knowledge:Agronomical Sciences - Animal Husbandry - Animal Nutrition and Feeding
Principal Investigator:Luciano Hauschild
Grantee:Luciano Hauschild
Home Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
Assoc. researchers:Aline Remus ; Anders Ringgaard Kristensen ; Candido Pomar ; Danilo Alves Marçal ; Ines Andretta ; Luan Sousa dos Santos ; Nathalie Le Floch ; PASTORELLI HELENE ; Paulo Henrique Reis Furtado Campos
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 grant(s):19/10843-1 - Multi-User Equipment approved in grant 18/15559-7: Dual Energy X-ray bone densitometry equipment, AP.EMU
Associated scholarship(s):20/03497-7 - Threonine supplementation on growth and corporal composition of growing pigs under a sanitary challenge, BP.IC
19/19588-4 - Evaluation of the physiological and metabolic response and performance of post-weaning piglets submitted to different management conditions and environment, BP.PD
18/11807-6 - Housing hygiene conditions affect postprandial profiles of amino acids and metabolites in pigs selected for low and high residual feed intake, BP.DR


This project aims to continue the study (JP1) of the factors responsible for the variability of pig performance and thus establish nutritional programs based on the concept of precision nutrition. In the actual context of global warming and livestock production increase in hot climate countries areas, livestock animals will be more and more exposed to heat stress. In addition, the association of global warming, higher animal stock density in smaller areas, increased flow of animals in the production systems and different management practices adopted (sanitary housing conditions) will benefit the development and dissemination of pathogens resulting in a greater contamination pressure. In this regard, the challenges of the livestock production sector in the 21st century include meeting the growing global demand for food in a context in which livestock animals will be more and more exposed to heat stress and sanitary challenges. Therefore, the objectives of this project are: a/ to evaluate the effect of different sanitary housing conditions on the on the physiology, metabolism, health status and performance of post weaning piglets; b/ to evaluate the interaction effects of nutritional strategy, health status, sanitary housing conditions and ambient temperature on the physiology, metabolism and performance of growing-finishing pigs; c/ to develop a method to monitor the health status of pigs in real time. For that purpose, the project is divided into 4 phases. In Phase 1, a survey of the management practices adopted during the post-weaning and growing-finishing phases in Brazilian pig farms will be conducted. In Phase 2, a systematic study (meta-analyses) will be performed to identify and quantify the optimal amino acids levels to be used in the diets according to the different challenges which pigs can be exposed during the growing-finishing phases (sanitary conditions and ambient temperature). In Phase 3 a study will be conduct to evaluate the effect of different sanitary housing conditions on the on the physiology, metabolism, health status and performance of post weaning piglets. In this phase, five others studies will be conduct to evaluate the effects of nutritional strategies (amino acids), health status (pigs from weaning phase raised on different sanitary housing conditions), sanitary housing conditions and temperature on growing-finishing pigs on physiology, metabolism and performance. In Phase 4, based on the results of Phase 3, will be evaluated the effects of nutritional strategies, health status, sanitary housing conditions and ambient temperature on feeding behavior responses of growing-finishing pigs. Finally, a dynamic linear model developed to identify deviations in real time from the normal pattern of pig feed consumption exposed to challenges will be validated in this project. The project's results may be used as a technological and nutritional strategy for pigs exposed to sanitary challenges in hot climates. Thus, this initiative would contribute to the sustainable development of pig farming in tropical and subtropical climates and to adapting production systems to the challenges imposed by intensified production and global warming. (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)
WELEX CÂNDIDO DA SILVA; PAULO HENRIQUE REIS FURTADO CAMPOS; LUAN SOUSA DOS SANTOS; ALINI MARI VEIRA; ALÍCIA ZEM FRAGA; LUCIANO HAUSCHILD. Sequential feeding with diets varying in amino acid content for growing-finishing pigs. Scientia Agricola, v. 78, n. 4, p. -, 2021. Web of Science Citations: 0.
HAUSCHILD, L.; KRISTENSEN, A. R.; ANDRETTA, I.; REMUS, A.; SANTOS, L. S.; POMAR, C. Toward better estimates of the real-time individual amino acid requirements of growing-finishing pigs showing deviations from their typical feeding patterns. ANIMAL, v. 14, n. 2, SI, p. S371-S381, AUG 2020. Web of Science Citations: 0.

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