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The influence of different energy, lysine and methionine levels on layer performance
Assignment (MPhil)--University of Stellenbosch, 2002.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867614135218339840 |
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| access_status_str | Open Access |
| author | Selaledi, Lesego Gaborone Amos |
| author2 | Ekermans, L. G. |
| author_browse | Ekermans, L. G. Selaledi, Lesego Gaborone Amos |
| author_facet | Ekermans, L. G. Selaledi, Lesego Gaborone Amos |
| author_sort | Selaledi, Lesego Gaborone Amos |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Assignment (MPhil)--University of Stellenbosch, 2002. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/53128 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:47:13.687Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/53128 The influence of different energy, lysine and methionine levels on layer performance Selaledi, Lesego Gaborone Amos Ekermans, L. G. Stellenbosch University. Faculty of AgriSciences. Dept. of Animal Sciences. Amino acids in animal nutrition Lysine in animal nutrition Methionine Chickens -- Feeding and feeds Eggs -- Production Assignment (MPhil)--University of Stellenbosch, 2002. ENGLISH ABSTRACT: The study conducted was aiming on evaluating the influence of different levels of energy and amino acids, mainly lysine and methionine, on production performance of the layer bird. There were three treatments, namely the Control diet, a high energy, lysine and methionine diet (High spec.) and a low energy, lysine and methionine diet (Low spec.). The energy levels were 11.2 MJ/kg, 11.5 MJ/kg and 10.9 MJ/kg respectively. Lysine levels were 0.67%, 0.73% and 0.63% whereas methionine levels were 0.36%, 0.38% and 0.34% respectively. The experimental design was 3 x 4 factorial, which is 3 treatments with 4 replicates each. Results showed no significant difference (P>0.05) between treatments in egg production, egg mass, egg output, bodyweight and mortality. Feed intakes of the High spec. diet were significantly lower (P<0.05) than that of the control diet and the Low spec. diet. AFRIKAANSE OPSOMMING: Hierdie studiestuk handeloor die evaluering van die invloed wat die verskillende vlakke van die energie en aminosure, veraiiisien en methionine op die produksie van 'n lê hoender het. Daar was gebruik gemaak van drie behandelings, naamlik die kontrole dieet, 'n hoë energie, lisien en methionien dieet (Hoë spesifikasie), en 'n lae energie, lisien en methionien dieet (Lae spesifikasie). Die energievlakke was 11.2 MJ/kg, 11.5 MJ/kg en 10.9 MJ/kg onderskeidelik. Lisienvlakke was 0.67%, 0.73% en 0.63% waarby methionienvlakke was 0.36%, 0.38% and 0.34% onderskeidelik. Die eksperimentele ontwerp was 3 x 4 fakulteitsfunksies: 3 behandelings met 4 replikas elk. Die resultate het geen noemenswaardige verskille (P>0.05) tussen die behandelinge in eierproduksie, eiergewig, eier-uitset, liggaamsgewig en mortaliteite nie. Die voerinnames van die hoë spesifikasie dieet was aansienlik laer (P<0.05) as die van die kontrole en lae spesifikasie dieet. Masters 2012-08-27T11:35:18Z 2012-08-27T11:35:18Z 2002-12 Thesis http://hdl.handle.net/10019.1/53128 en_ZA Stellenbosch University 84 p. : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Amino acids in animal nutrition Lysine in animal nutrition Methionine Chickens -- Feeding and feeds Eggs -- Production Selaledi, Lesego Gaborone Amos The influence of different energy, lysine and methionine levels on layer performance |
| title | The influence of different energy, lysine and methionine levels on layer performance |
| title_full | The influence of different energy, lysine and methionine levels on layer performance |
| title_fullStr | The influence of different energy, lysine and methionine levels on layer performance |
| title_full_unstemmed | The influence of different energy, lysine and methionine levels on layer performance |
| title_short | The influence of different energy, lysine and methionine levels on layer performance |
| title_sort | influence of different energy lysine and methionine levels on layer performance |
| topic | Amino acids in animal nutrition Lysine in animal nutrition Methionine Chickens -- Feeding and feeds Eggs -- Production |
| url | http://hdl.handle.net/10019.1/53128 |
| work_keys_str_mv | AT selaledilesegogaboroneamos theinfluenceofdifferentenergylysineandmethioninelevelsonlayerperformance AT selaledilesegogaboroneamos influenceofdifferentenergylysineandmethioninelevelsonlayerperformance |