Main content

Influence of the liquid diet on gastrointestinal development in dairy calves

Show full item record

Title: Influence of the liquid diet on gastrointestinal development in dairy calves
Author: Mellors, Siobhan
Department: Department of Animal Biosciences
Program: Animal and Poultry Science
Advisor: Steele, Michael
Abstract: Due to the prevalence of gastrointestinal diseases and disorders in dairy calves, optimizing nutritional strategies to enhance gastrointestinal (GIT) development is at the forefront of industry concerns. This thesis investigates the effects of whole milk powder (WP) and milk replacer (MR) of similar macronutrient composition on GIT development, function, and composition in Holstein calves. Calves fed the WP treatment had greater gut mass, specifically the mass of the rumen and small intestine. When evaluating histomorphological measures, the surface area index of the distal jejunum of WP calves was greater. Additionally, the transcellular permeability of WP calves was increased. The treatments in this thesis also altered the free fatty acid and phospholipid profile of small intestine tissue. These findings suggest that the fatty acid profiles of WP and MR affect GIT physiology from gross morphology to phospholipid composition, which may cause changes to membrane fluidity and cell function.
Date: 2022-01-07
Terms of Use: All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.

Files in this item

Files Size Format View
Mellors_Siobhan_202201_MSc.pdf 1.079Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record