Document Type

Thesis - Open Access

Award Date

1977

Degree Name

Master of Science (MS)

Department

Biology and Microbiology

Abstract

One objective of this study was to determine if the inoculation of young chicks with crop-adhering strains of lactobacilli affects the numbers of lactobacilli, fecal coliforms, and fecal streptococci in the intestinal tract. Only one known study has been conducted to identify the lactobacilli which adhere to crop cells. In this study 86% of the crop lactobacilli could not be identified as any known species. On the other hand, in a study of the types of lactobacilli present in the intestinal tract, nearly all could be classified as known species, with most identified as Lactobacillus acidophilus. These defined differences between crop and intestinal lactobacilli as studies indicate a need for more study to determine in the crop lactobacilli actually affects the establishment of lactobacilli in the intestinal tract. A final objective of this study, therefore, is to characterize crop and fecal lactobacilli of uninoculated chicks and of chicks inoculated with crop-adhering strains of lactobacilli to determine if the inoculation influences the type of lactobacilli which establish in the crop and subsequently in the lower intestinal tract.

Library of Congress Subject Headings

Poultry

Digestive organs -- Birds

Lactabacillus

Format

application/pdf

Number of Pages

119

Publisher

South Dakota State University

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