Modulation of microbiota and intestinal development of poultry by in ovo inoculation of probiotic bacteria

• Grant number: 13/10198-2
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: September 01, 2013
• End date: April 30, 2014
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Production
• Principal Investigator: Silvana Martinez Baraldi Artoni
• Grantee: Liliana Longo Borges
• Supervisor: Peter R. Ferket
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
• Institution abroad: North Carolina State University (NC State), United States
• Associated to the scholarship: 11/13068-7 - Effect of in ovo inoculation of Bacillus subtilis on performance and morphological and morphometric characteristics of the small intestine of broilers, BP.DR

Abstract

The incubation phase becomes increasingly important to represent 30% of the life of the poultry, and consequently the morphogenesis processes which occur in this period, together with interest of inoculating substances to the embryo phase, has been shown in recent years by research groups from different countries. Studies related to probiotics, along with the knowledge of the intestinal microbiota and their interactions led to the development of dietary strategies aiming at maintaining and stimulating the normal bacteria present there. The inoculation of substances allows the introduction of specific nutrients in contact with the intestinal mucosa before the hatching, directing cell differentiation and improving the ability to digest food by chick. Recently, the doctoral study Effect of in ovo inoculation of Bacillus subtilis on performance and morphological and morphometric characteristics of the small intestine of broilers (FAPESP process 2011/13068-7) was conducted and evaluated the morphology and morphometry of the intestinal mucosa and broilers performance through the technique of inoculation of substances into eggs during the incubation. Although the experiment has been successful completed, some gaps were found in relation to methodologies and need to be improved in the sense of technology and innovation. The experiments to be performed at North Carolina State University will bring substantial contribution to the research that the candidate develops in the Brazil, since they are related to a common goal which is to analyze the development of the mucosa of chickens by inoculation with probiotic bacteria during incubation of eggs. The experiments at North Carolina State University will bring substantial contribution to the research that the candidate develops in the Brazil, since they are related to a common goal which is to analyze the development of the mucosa of chickens by inoculation of probiotic bacteria during incubation of eggs. Based on the above, the internship abroad aims at training in new methodologies for research of lactic acid bacteria and development of the intestinal mucosa during incubation of eggs of chickens, as well as to improve the procedures used in known techniques and to discuss the doctoral experiment results of the candidate. (AU)