Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Kiess, Aaron S.
Committee Member
Karsi, Attila
Committee Member
McDaniel, Christopher D.
Date of Degree
8-11-2017
Document Type
Graduate Thesis - Open Access
Major
Poultry Science
Degree Name
Master of Science (M.S.)
College
College of Agriculture and Life Sciences
Department
Department of Poultry Science
Abstract
Probiotics are an alternative to increase broiler productivity and flock health. For this reason, the objective of the first study was to evaluate commercially available Bacillus spp. based probiotic products on their ability to reduce Salmonella Heidelberg, in vitro. Results showed that most products reduced the lower concentrations of S. Heidelberg and maintained a reduction for up to 8 h. The second study was conducted to determine if bacterial colonization occurred in a broiler chick after in ovo injection. Using bioluminescence, it was demonstrated that bacteria could migrate and colonize the embryo within 2 h after in ovo injection into the amniotic fluid. The results of these studies demonstrated that probiotics could reduce pathogenic microorganisms and can potentially have a positive impact on the chick before it even hatches and is placed in a broiler house.
URI
https://hdl.handle.net/11668/19955
Recommended Citation
Bustillo, Claudia Duneska Castaneda, "Evaluating Different Approaches for the Delivery of Probiotics to Broilers at Different Life Stages" (2017). Theses and Dissertations. 1951.
https://scholarsjunction.msstate.edu/td/1951