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Diet fortification, Broiler breeder, Feed management, Uniformity

Holm, Deborah

Supervisor and department: Robinson, Frank E. University Student Services

Examining committee member and department: Steiner, Bodo Rural Economy Renema, Robert A. Agricultural, Food and Nutritional Science Zuidhof, Martin J. Agricultural, Food and Nutritional Science

Department: Department of Agricultural, Food and Nutritional Science

Specialization:

Date accepted: 2010-10-01T20:56:38Z

Graduation date: 2010-11

Degree: Master of Science

Degree level: Master's

Abstract: This project researched the effects of pullet-phase feed restriction methodology or management and hen-phase diet fortification on female broiler breeder BW and carcass trait uniformity as well as on performance of the broiler offspring.Feed treatments had a significant effect on female BW and carcass trait uniformity at 22 wk of age, with sorting and scatter treatments having the highest uniformity estimates, compared to limited daily, skip-a-day and fibre-diluted programs. Feed and premix treatments did not affect traits after 22 wk of age as individual caging at 22 wk of age unified female BW uniformity across all treatments. Feed treatments did not affect the uniformity of age at sexual maturity, first egg characteristics or production parameters. Premix treatment resulted in decreased shell uniformity and increased uniformity of one of the production parameters, total egg mass. Feed treatments may have a greater effect on female broiler breeder efficiency than previously suggested.

Language: English

DOI: doi:10.7939-R3Q01R

Rights: License granted by Deborah Holm dholm@ualberta.ca on 2010-10-01T20:35:37Z 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.





Autor: Holm, Deborah

Fuente: https://era.library.ualberta.ca/



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