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Permanent link (DOI): https://doi.org/10.7939/R3ZH2G

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Evaluation of a pedometer system for prediction of estrus and parturition in dairy cows housed in a tie-stall barn Open Access

Descriptions

Other title
Subject/Keyword
parturition
dairy
estrus
pedometer
tie-stall
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Felton, Courtney
Supervisor and department
Ambrose, Divakar (Department of Agricultural, Food and Nutritional Science)
Examining committee member and department
Oba, Masahito (Department of Agricultural, Food and Nutritional Science)
Bench, Clover (Department of Agricultural, Food and Nutritional Science)
Cassidy St.Clair, Colleen (Department of Biological Sciences)
Department
Department of Agricultural, Food and Nutritional Science
Specialization

Date accepted
2011-08-17T12:58:20Z
Graduation date
2011-11
Degree
Master of Science
Degree level
Master's
Abstract
Physiological changes associated with estrus and parturition in dairy cows are manifested by changes in activity and behaviour. Accurate and timely detection of cows in estrus and those approaching parturition is very important. The research objective was to determine the efficiency of the Afimilk pedometer system to facilitate the prediction of estrus and parturition through activity changes, in dairy cows continuously-housed in tie-stalls. The Afimilk pedometer system was first validated against simultaneous video recordings. Two studies were then conducted to determine if pedometers could predict estrus and parturition in dairy cows continuously- housed in tie-stalls. Afimilk pedometers were accurate in monitoring steps, lying bout frequency, and duration of lying. However, due to minimal activity change during estrus and high variability in prepartum activity, the Afimilk pedometers did not facilitate the accurate prediction of estrus or parturition, in the studied dairy cows continuously-housed in tie-stalls.
Language
English
DOI
doi:10.7939/R3ZH2G
Rights
License granted by Courtney Felton (cafelton@ualberta.ca) on 2011-08-12T21:46:50Z (GMT): 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 the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein 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.
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File title: Felton_Courtney_Fall 2011
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