Dietary protein and energy requirements of Venda village chickens
The objective of this study was to determine the dietary protein and apparent metabolisable energy (AME) requirements of local chickens. Freshly laid eggs of scavenging chickens collected in rural villages were hatched and randomly distributed to 27 floor pens, 10 chicks per pen. Chicks were fed 9 e...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Kassel University Press
2018-06-01
|
| Series: | Journal of Agriculture and Rural Development in the Tropics and Subtropics |
| Subjects: | |
| Online Access: | https://jarts.info/index.php/jarts/article/view/2018040955192 |
| _version_ | 1819096528641327104 |
|---|---|
| author | Thomas Raphulu Christine Jansen van Rensburg |
| author_facet | Thomas Raphulu Christine Jansen van Rensburg |
| author_sort | Thomas Raphulu |
| collection | DOAJ |
| description | The objective of this study was to determine the dietary protein and apparent metabolisable energy (AME) requirements of local chickens. Freshly laid eggs of scavenging chickens collected in rural villages were hatched and randomly distributed to 27 floor pens, 10 chicks per pen. Chicks were fed 9 experimental diets that were combinations of three CP levels (140, 170 and 190 g kg−1 DM) and three AME levels (11.0, 11.7 and 12 MJ kg−1) during the starter phase (0–6 weeks) and combinations of three CP levels (120, 150 and 180 g kg−1 DM) and three ME levels (11.3, 12.0 and 12.4 MJ kg−1) during the grower phase (7–17) weeks. Significant differences within means on CP × AME interaction effect were observed in all parameters measured, except feed intake during starter period and dressing percentage (%) and breast yield of 17 weeks old chickens. The results of the present study indicated that during the starter and grower phases, unsexed chickens would require dietary combinations of 170 g CP kg−1 and 11.0 AME MJ kg−1 and 150 g CP kg−1 and 12 AME MJ kg−1 in their diets to optimise weight gain and FCR, and 150 g CP kg−1 and 11.3 MJ kg−1 to optimise ash content of muscles, protein content of the breast and fat content of the leg muscle. Supplementation of 27 g CP kg−1 feed to grower scavenging chickens would be enough to improve chicken production in the rural villages. |
| first_indexed | 2024-12-22T00:00:38Z |
| format | Article |
| id | doaj.art-f1bf8227b8ef45eaa1cf0f7c645ac196 |
| institution | Directory Open Access Journal |
| issn | 1612-9830 2363-6033 |
| language | English |
| last_indexed | 2024-12-22T00:00:38Z |
| publishDate | 2018-06-01 |
| publisher | Kassel University Press |
| record_format | Article |
| series | Journal of Agriculture and Rural Development in the Tropics and Subtropics |
| spelling | doaj.art-f1bf8227b8ef45eaa1cf0f7c645ac1962022-12-21T18:45:42ZengKassel University PressJournal of Agriculture and Rural Development in the Tropics and Subtropics1612-98302363-60332018-06-01119195104Dietary protein and energy requirements of Venda village chickensThomas Raphulu0Christine Jansen van Rensburg1Department of Animal and Wildlife Sciences, University of Pretoria, Pretoria 0002, South Africa; Limpopo Department of Agriculture and Rural Development, Mara Research Station, P/bag x 2467, Makhado, 0920, South AfricaDepartment of Animal and Wildlife Sciences, University of Pretoria, Pretoria 0002, South AfricaThe objective of this study was to determine the dietary protein and apparent metabolisable energy (AME) requirements of local chickens. Freshly laid eggs of scavenging chickens collected in rural villages were hatched and randomly distributed to 27 floor pens, 10 chicks per pen. Chicks were fed 9 experimental diets that were combinations of three CP levels (140, 170 and 190 g kg−1 DM) and three AME levels (11.0, 11.7 and 12 MJ kg−1) during the starter phase (0–6 weeks) and combinations of three CP levels (120, 150 and 180 g kg−1 DM) and three ME levels (11.3, 12.0 and 12.4 MJ kg−1) during the grower phase (7–17) weeks. Significant differences within means on CP × AME interaction effect were observed in all parameters measured, except feed intake during starter period and dressing percentage (%) and breast yield of 17 weeks old chickens. The results of the present study indicated that during the starter and grower phases, unsexed chickens would require dietary combinations of 170 g CP kg−1 and 11.0 AME MJ kg−1 and 150 g CP kg−1 and 12 AME MJ kg−1 in their diets to optimise weight gain and FCR, and 150 g CP kg−1 and 11.3 MJ kg−1 to optimise ash content of muscles, protein content of the breast and fat content of the leg muscle. Supplementation of 27 g CP kg−1 feed to grower scavenging chickens would be enough to improve chicken production in the rural villages.https://jarts.info/index.php/jarts/article/view/2018040955192starter phasegrower phaseweight gainfeed conversion ratio |
| spellingShingle | Thomas Raphulu Christine Jansen van Rensburg Dietary protein and energy requirements of Venda village chickens Journal of Agriculture and Rural Development in the Tropics and Subtropics starter phase grower phase weight gain feed conversion ratio |
| title | Dietary protein and energy requirements of Venda village chickens |
| title_full | Dietary protein and energy requirements of Venda village chickens |
| title_fullStr | Dietary protein and energy requirements of Venda village chickens |
| title_full_unstemmed | Dietary protein and energy requirements of Venda village chickens |
| title_short | Dietary protein and energy requirements of Venda village chickens |
| title_sort | dietary protein and energy requirements of venda village chickens |
| topic | starter phase grower phase weight gain feed conversion ratio |
| url | https://jarts.info/index.php/jarts/article/view/2018040955192 |
| work_keys_str_mv | AT thomasraphulu dietaryproteinandenergyrequirementsofvendavillagechickens AT christinejansenvanrensburg dietaryproteinandenergyrequirementsofvendavillagechickens |