ERA

Download the full-sized PDF of Impacts of Environmental Temperature and Dietary Energy on Core Body Temperature and Efficiency in Broiler Breeder FemalesDownload the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R3N29PJ09

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

Impacts of Environmental Temperature and Dietary Energy on Core Body Temperature and Efficiency in Broiler Breeder Females Open Access

Descriptions

Other title
Subject/Keyword
Core body temperature
Environmental temperature
Broiler breeder
Efficiency
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Paul, Dulal Chandra
Supervisor and department
Dr. Martin J. Zuidhof (Agricultural, Food, and Nutritional science)
Examining committee member and department
Dr. Linda McCargar (Agricultural, Food, and Nutritional science)
Dr. Douglas R. Korver (Agricultural, Food, and Nutritional science)
Department
Department of Agricultural, Food, and Nutritional Science
Specialization
Animal Science
Date accepted
2013-10-03T14:26:24Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
The effects of environmental temperature, dietary energy, housing system, time of feeding and day length on core body temperature (CBT) dynamics in broiler breeder females was studied in a series of experiments. Environmental temperatures within the range of 15 to 27˚C resulted in a CBT of 39.8 to 42.1˚C. Environmental temperature affected feed intake, growth, CBT dynamics and efficiency in pullets, but not the egg production, egg weight or feed efficiency in hens. Low energy diet-fed hens laid heavier eggs. Free-run and caged hens had similar egg production but free-run hens produced heavier eggs. However, free-run hens required by 17.2% more energy than caged hens, likely to support activity level. Feeding twice per day delayed oviposition relative to morning-fed hens. Photoperiod effects were seen in diurnal CBT patterns. Peak CBT occurred soon after feeding and could be shifted by changing feeding time, and may have potential for heat stress mitigation.
Language
English
DOI
doi:10.7939/R3N29PJ09
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication

File Details

Date Uploaded
Date Modified
2014-04-29T21:07:00.896+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 1427093
Last modified: 2015:10:12 19:55:22-06:00
Filename: Dulal_final_submission.pdf
Original checksum: 2d8b3c7d3e6c9cc9d7038352d37e61df
Well formed: false
Valid: false
Status message: Unexpected error in findFonts java.lang.ClassCastException: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject cannot be cast to edu.harvard.hul.ois.jhove.module.pdf.PdfDictionary offset=2975
Status message: Invalid Annotation list offset=1339164
File language: en-CA
Activity of users you follow
User Activity Date