Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Peebles, E. David
Committee Member
Evans, Jeff D.
Committee Member
Leigh, Spencer
Committee Member
Adhikari, Pratima
Date of Degree
8-9-2022
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
Avian Pathogenic E. coli can lead to infections in laying hens and wide-spread economic problems in the table egg industry. A vaccine widely used to combat APEC is the Poulvac E. coli vaccine, which is normally applied via spray vaccination. Application of this vaccine via in ovo injection has not been examined. The purpose of this series of studies was to determine the effects of injecting 50 μL of different dosages of the PECV into Hy-Line W-36 layer hatching eggs on the hatchability and characteristics of the hatchlings, and on the livability and characteristics of the chicks through 21 d growout. Administration of the PECV at 18 d of incubation yielded unsatisfactory results in terms of hatchability and the characteristics of the chicks at hatch and through 21 d of age. Commercial use of the PECV via in ovo injection in Hy-Line W-36 layer hatching eggs is not recommended.
Sponsorship
United States Department of Agriculture (USDA; agreement No. 58-6064-9-014)
Recommended Citation
Lindsey, Lauren L., "Effects of the in ovo administration of the Poulvac E. coli vaccine in layer hatching eggs on hatchability, hatchling characteristics, and early posthatch chick performance" (2022). Theses and Dissertations. 5616.
https://scholarsjunction.msstate.edu/td/5616