Sequential feeding plan with variation in the amino acid level at every 12 hours for growing pigs

• Grant number: 17/18734-1
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: July 01, 2018
• End date: April 30, 2021
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Nutrition and Feeding
• Principal Investigator: Luciano Hauschild
• Grantee: Alini Mari Veira
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

All aspects of physiology, including cycles of activity and resting, cardiovascular activity, endocrine system, body temperature, renal activity, gastrointestinal tract motility and nutrient metabolism are influenced by the circadian system, and may occur with lower or higher frequencies and/or intensities according to the period of the day within 24 hours. Consequently, understanding the dynamics of nutrient uptake and metabolism over 24 hours can be an important tool for adjusting nutritional programs to the nutritional requirements of production animals. Therefore, the objective of this study is to better understand this dynamics throughout the 24 hours of the day and to determine the ideal level of amino acids to be supplied in the diet at different times of the day. To do this, two experiments will be performed: a) a metabolism test to characterize the dynamics of nutrient uptake and metabolism through the analysis of serum levels of hormones, energy metabolites, protein and nitrogen balance; and b) a dose-response assay to evaluate performance, composition and carcass traits of growing pigs receiving diets with different concentrations of amino acids in a sequential feed plane. (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)

VEIRA, ALINI MARI; DOS SANTOS, LUAN SOUSA; REIS FURTADO CAMPOS, PAULO HENRIQUE; MARCAL, DANILO ALVES; FRAGA, ALICIA ZEM; HAUSCHILD, LUCIANO. ffects of sequential feeding with adjustments to dietary amino acid concentration according to the circadian rhythm on the performance, body composition, and nutrient balance of growing-finishing pig. PLoS One, v. 16, n. 12, DEC 23 2021. (17/18734-1, 18/15559-7)

VEIRA, A. M.; SANTOS, L. S.; GOBI, J. P.; SILVA, W. C.; FRAGA, A. Z.; HAUSCHILD, L.. Individual responses of growing pigs to diets with valine and isoleucine to lysine ratios. ANIMAL FEED SCIENCE AND TECHNOLOGY, v. 279, SEP 2021. (17/18734-1, 18/15559-7)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

VEIRA, Alini Mari. Adjustment in the diet amino acids concentration according to the circadian rhythm of growing-finishing pigs. 2021. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.