Effects of Lactobacilli and lactose on Salmonella typhimurium colonisation and microbial fermentation in the crop of the young turkey

British Poultry Science
S A CutlerColin G Scanes

Abstract

1. Three experiments were performed to examine the effects of Lactobacilli and lactose on microbial fermentation and Salmonella enterica serovar Typhimurium colonisation in the crop of the young turkey. 2. The following carboxylic acids were detected in the crop ingesta: formic, acetic, butyric, lactic, valeric, caproic, oxalic, phenyl acetic, succinic and fumaric; propionic, isobutyric and isovaleric acids were not detectable. 3. At the beginning of the night, there were considerable quantities of ingesta in the crop of young turkeys. During the scotophase, there were progressive reductions in the contents and pH. Moreover, there were linear increases in the concentration of lactic, valeric and caproic acids (by approximately 7-fold over 8 h). Much smaller changes in crop pH were observed in the study where dietary treatments of Lactobacilli were not included. 4. Chronic addition of lactose or Lactobacilli to the diet exerted modest effects on the carboxylic acid concentration in the crop contents but did not consistently influence colonisation of the crop by Salmonella enterica serovar Typhimurium. 5. Young turkeys confine eating to the hours of illumination (photophase) with a peak in consumption prior to the subjective dusk.

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Citations

Jun 15, 2007·Environmental Microbiology·Alexandra J Scupham
Jul 6, 2010·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Duane A RobinsonMichael G Conzemius
Jun 7, 2014·Frontiers in Microbiology·David W Waite, Michael W Taylor
Feb 12, 2009·Journal of Food Protection·Irene V WesleyDarrell W Trampel
Nov 27, 2020·Frontiers in Physiology·Colin G Scanes
Mar 29, 2021·Journal of Animal Physiology and Animal Nutrition·Xiaojuan WangHai Lin

Methods Mentioned

BETA
scanning electron microscopy

Related Concepts

Senility
Circadian Rhythms
Avian Crop
Feeding Patterns
Fermentation
Lactobacillus amylovorus
Anhydrous lactose
Meleagridinae
Salmonella enterica

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