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Investigating the high incidence of bone disorders in a broiler farm : a case study
Thesis (MPhil (Animal Sciences))--University of Stellenbosch, 2006.
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : University of Stellenbosch
2008
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| _version_ | 1867613898979409920 |
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| access_status_str | Open Access |
| author | Mkhize, Felicity Nomfuzo |
| author2 | Ciacciariello, M. |
| author_browse | Ciacciariello, M. Mkhize, Felicity Nomfuzo |
| author_facet | Ciacciariello, M. Mkhize, Felicity Nomfuzo |
| author_sort | Mkhize, Felicity Nomfuzo |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MPhil (Animal Sciences))--University of Stellenbosch, 2006. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/3346 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:43:27.297Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/3346 Investigating the high incidence of bone disorders in a broiler farm : a case study Mkhize, Felicity Nomfuzo Ciacciariello, M. University of Stellenbosch. Faculty of Agrisciences. Dept. of Animal Sciences. Rickets Calcium Phosphorus Broilers Broilers (Poultry) -- Diseases -- Case studies Chickens -- Diseases -- Case studies Bones -- Abnormalities -- Case studies Rickets -- Case studies Dissertations -- Agriculture Theses -- Agriculture Assignments -- Agriculture Dissertations -- Animal sciences Theses -- Animal sciences Assignments -- Animal sciences Thesis (MPhil (Animal Sciences))--University of Stellenbosch, 2006. Rickets is described as a disease that affects young growing poultry. Poorly mineralized bones with thickened and irregular growth plates characterize it. The onset of rickets is characterized by a failure of mineralization of cartilage and bone. Other symptoms of rickets include reluctance to movement in affected birds. These birds will sit on their hocks and if startled they use their wings for balance. On necropsy, bones are soft and fragile and they have thickened growth plates. In this study 30% of the chicks aged between 7 and 8 days from a broiler flock, started showing splay leg problems. Affected chicks were unable to support their weight on their legs, some showing paralysis. The bones were soft and rubbery. To try and identify the possible cause, bones from the affected chicks were analyzed for calcium (Ca) and phosphorus (P) to determine the Ca:P ratio. Blood serum was also analyzed for the mineral content. Ca and P were the main focus of the tests as the problem was suspected to be rickets. The feed was analyzed for protein, Ca and P. The bone analysis showed a Ca:P ratio of less than 2:1, while results of the blood serum showed an inverse Ca: P ratio. The analysis results of the feed as well as the bones showed an imbalance in the Ca:P ratio which according to literature and research done is a possible cause for rickets. These findings combined with the symptoms displayed by the affected birds, lead to the suggestion that the problem in this study was rickets. Masters 2008-07-22T07:47:46Z 2010-07-09T11:08:14Z 2008-07-22T07:47:46Z 2010-07-09T11:08:14Z 2006-03 Thesis http://hdl.handle.net/10019.1/3346 en University of Stellenbosch application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Rickets Calcium Phosphorus Broilers Broilers (Poultry) -- Diseases -- Case studies Chickens -- Diseases -- Case studies Bones -- Abnormalities -- Case studies Rickets -- Case studies Dissertations -- Agriculture Theses -- Agriculture Assignments -- Agriculture Dissertations -- Animal sciences Theses -- Animal sciences Assignments -- Animal sciences Mkhize, Felicity Nomfuzo Investigating the high incidence of bone disorders in a broiler farm : a case study |
| title | Investigating the high incidence of bone disorders in a broiler farm : a case study |
| title_full | Investigating the high incidence of bone disorders in a broiler farm : a case study |
| title_fullStr | Investigating the high incidence of bone disorders in a broiler farm : a case study |
| title_full_unstemmed | Investigating the high incidence of bone disorders in a broiler farm : a case study |
| title_short | Investigating the high incidence of bone disorders in a broiler farm : a case study |
| title_sort | investigating the high incidence of bone disorders in a broiler farm a case study |
| topic | Rickets Calcium Phosphorus Broilers Broilers (Poultry) -- Diseases -- Case studies Chickens -- Diseases -- Case studies Bones -- Abnormalities -- Case studies Rickets -- Case studies Dissertations -- Agriculture Theses -- Agriculture Assignments -- Agriculture Dissertations -- Animal sciences Theses -- Animal sciences Assignments -- Animal sciences |
| url | http://hdl.handle.net/10019.1/3346 |
| work_keys_str_mv | AT mkhizefelicitynomfuzo investigatingthehighincidenceofbonedisordersinabroilerfarmacasestudy |