Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
Kwalitatiewe en kwantitatiewe inname van staandehooi van twee Cenchrus ciliaris kultivars (Afrikaans)
Dissertation (MSc Agric (Animal and Wildlife Sciences))--University of Pretoria, 2007.
Saved in:
| Other Authors: | |
|---|---|
| Format: | Thesis |
| Published: |
University of Pretoria
2013
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613546305552384 |
|---|---|
| access_status_str | Open Access |
| author2 | Van Niekerk, Willem A. |
| author_browse | Van Niekerk, Willem A. |
| author_facet | Van Niekerk, Willem A. |
| collection | Thesis |
| dc_rights_str_mv | © 2006, 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 (Animal and Wildlife Sciences))--University of Pretoria, 2007. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/23753 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:37:51.914Z |
| 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:2263/23753 Kwalitatiewe en kwantitatiewe inname van staandehooi van twee Cenchrus ciliaris kultivars (Afrikaans) Van Niekerk, Willem A. stephanusj@epol.co.za Jacobs, Salmon Stephanus Cenchrus ciliaris Sheep feeding and feeds Grazing research Sheep feed utilization efficiency UCTD Dissertation (MSc Agric (Animal and Wildlife Sciences))--University of Pretoria, 2007. The aim of the study was to determine if significant differences, in terms of grazing parameters, intake, animal performane and digestibility, existed between foggage of Cenchrus ciliaris cv. Molopo and Cenchrus ciliaris cv. Gayndah. A grazing trial as well as a partial digestibility study was done with sheep. The following parameters were used: grazing parameters (dry matter availability and structure of the grazing), qualitative and quantitative intake, animal production and partial digestiblity. The grazing trial was conducted over two years and further divided into two separate periods of utilisation, middle and late winter. The second trial was a partial digestibility experiment conducted during the second year. In terms of the production parameters of the two varieties: dry material production and sward length of C. ciliaris cv. Molopo was constantly higher than that of C. ciliaris cv. Gayndah. In the grazing experiment the quality of selected material did not differ between C. ciliaris cv. Gayndah and Molopo. Differences in most parameters were not significant. Experimental animals grazing Gayndah selected a diet with higher N- and NDF-concentrations, as opposed to animals grazing Molopo. The same trend continued during the second year but only for N-concentration. In terms of quantitative observations in the grazing experiment the intakes of the two varieties were high for the whole duration of the trial. Only during the "out"-phase of period 1 in 1991, animals on C. ciliaris cv. Molopo couldn’t maintain an intake to meet maintenance requirements. Experimental animals gained weight in the first period of grazing of the first year of the study but not during the rest of the trial. Although intake was high in the other periods, these intakes didn’t support growth or maintenance. This suggests that supplementation in the form of a lick could address possible deficiencies. In the partial digestion trial animals grazing C. ciliaris cv. Gayndah, as opposed to animals on cv. Molopo, selected a better quality material but quantitatively there were no significant differences. For both varieties the amount of organic material consumed wasn’t adequate to meet maintenance requirements. There were no significant differences in the partial digestibility of organic material or nitrogen. Animals on both varieties were in a negative nitrogen balance. Animal and Wildlife Sciences unrestricted 2013-09-06T15:52:00Z 2007-04-04 2013-09-06T15:52:00Z 2006-09-07 2007-04-04 2007-04-04 Dissertation Jacobs, S 2006, Kwalitatiewe en kwantitatiewe inname van staandehooi van twee Cenchrus ciliaris kultivars (Afrikaans), MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/23753 > http://hdl.handle.net/2263/23753 http://upetd.up.ac.za/thesis/available/etd-04042007-102237/ © 2006, 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 application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf University of Pretoria |
| spellingShingle | Cenchrus ciliaris Sheep feeding and feeds Grazing research Sheep feed utilization efficiency UCTD Kwalitatiewe en kwantitatiewe inname van staandehooi van twee Cenchrus ciliaris kultivars (Afrikaans) |
| title | Kwalitatiewe en kwantitatiewe inname van staandehooi van twee Cenchrus ciliaris kultivars (Afrikaans) |
| title_full | Kwalitatiewe en kwantitatiewe inname van staandehooi van twee Cenchrus ciliaris kultivars (Afrikaans) |
| title_fullStr | Kwalitatiewe en kwantitatiewe inname van staandehooi van twee Cenchrus ciliaris kultivars (Afrikaans) |
| title_full_unstemmed | Kwalitatiewe en kwantitatiewe inname van staandehooi van twee Cenchrus ciliaris kultivars (Afrikaans) |
| title_short | Kwalitatiewe en kwantitatiewe inname van staandehooi van twee Cenchrus ciliaris kultivars (Afrikaans) |
| title_sort | kwalitatiewe en kwantitatiewe inname van staandehooi van twee cenchrus ciliaris kultivars afrikaans |
| topic | Cenchrus ciliaris Sheep feeding and feeds Grazing research Sheep feed utilization efficiency UCTD |
| url | http://hdl.handle.net/2263/23753 http://upetd.up.ac.za/thesis/available/etd-04042007-102237/ |