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The influence of effective microorganisms (EM) on the growth, production and egg quality of the commercial laying hen
Dissertation (MSc Agric (Nutritional Science))--University of Pretoria, 2006.
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| Format: | Thesis |
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University of Pretoria
2013
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| _version_ | 1867613663929565184 |
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| access_status_str | Open Access |
| author2 | Casey, N.H. (Norman Henry) |
| author_browse | Casey, N.H. (Norman Henry) |
| author_facet | Casey, N.H. (Norman Henry) |
| collection | Thesis |
| dc_rights_str_mv | © 2000 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc Agric (Nutritional Science))--University of Pretoria, 2006. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/26085 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:39:44.170Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/26085 The influence of effective microorganisms (EM) on the growth, production and egg quality of the commercial laying hen Casey, N.H. (Norman Henry) upetd@up.ac.za Jacobs, Amanda Chickens microbiology Eggs production Eggs quality Eggs growth. UCTD Dissertation (MSc Agric (Nutritional Science))--University of Pretoria, 2006. In the first part of the study an experimental design was followed whereby 600 DeKalb Amber-link® commercial laying pullets were subjected to three levels of EM bokashi (0.5%, 1.0% and 1.5%) and a standard level of a coccidiostat in the starter (17% CP, 0.9% Ca and 0.4% available phosphate) and grower (15% CP, 0.8% Ca and 0.35% available phosphate) diets from day-old to 16 weeks of age. EM treatments did not significantly affect the average weekly body mass, average daily gain, average weekly feed intake, cumulative weekly feed intake, cumulative feed conversion ratio and the average bi-weekly shank length over the control. The coccidiostat treatment maintained significant lower body weights, average daily gains and worse feed conversion ratios than all the EM treatments and the control throughout the trial period of 16 weeks. Although not significant the EM 1.5% level had the best feed conversion ratio, the highest body mass and the longest shank length at the end of the trial period at week 16. Mortalities were not treatment linked. Animal and Wildlife Sciences unrestricted 2013-09-07T02:28:58Z 2006-07-11 2013-09-07T02:28:58Z 2001-04-01 2006-07-11 2006-07-06 Dissertation Jacobs, A 2000, The influence of effective microorganisms (EM) on the growth, production and egg quality of the commercial laying hen, MSc(Agric) dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/26085 > H1040/ag http://hdl.handle.net/2263/26085 http://upetd.up.ac.za/thesis/available/etd-07062006-151551/ © 2000 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Chickens microbiology Eggs production Eggs quality Eggs growth. UCTD The influence of effective microorganisms (EM) on the growth, production and egg quality of the commercial laying hen |
| title | The influence of effective microorganisms (EM) on the growth, production and egg quality of the commercial laying hen |
| title_full | The influence of effective microorganisms (EM) on the growth, production and egg quality of the commercial laying hen |
| title_fullStr | The influence of effective microorganisms (EM) on the growth, production and egg quality of the commercial laying hen |
| title_full_unstemmed | The influence of effective microorganisms (EM) on the growth, production and egg quality of the commercial laying hen |
| title_short | The influence of effective microorganisms (EM) on the growth, production and egg quality of the commercial laying hen |
| title_sort | influence of effective microorganisms em on the growth production and egg quality of the commercial laying hen |
| topic | Chickens microbiology Eggs production Eggs quality Eggs growth. UCTD |
| url | http://hdl.handle.net/2263/26085 http://upetd.up.ac.za/thesis/available/etd-07062006-151551/ |