The effect of non-genetic factors on milk yield and composition of Red Dane cattle in Zimbabwe
A study was carried out to establish non genetic factors affecting milk, butterfat and protein yields in Zimbabwean Red Dane cattle. A total of 1325 unedited 305-day lactation records were obtained from Zimbabwe Livestock Identification Trust herd, with cows calving in the period 2002–2006. The Hend...
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Livestock Research for Rural Development
2021
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| Online Access: | http://www.lrrd.org/lrrd26/5/nyam26093.htm http://hdl.handle.net/11408/4376 |
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| author | Nyamushamba, G. B. Chikwanda, D. Matondi, G H M Marandure, T Mamutse, J. Tavirimirwa, B. Banana, N Y D Dhliwayo, M. |
| author_facet | Nyamushamba, G. B. Chikwanda, D. Matondi, G H M Marandure, T Mamutse, J. Tavirimirwa, B. Banana, N Y D Dhliwayo, M. |
| author_sort | Nyamushamba, G. B. |
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| description | A study was carried out to establish non genetic factors affecting milk, butterfat and protein yields in Zimbabwean Red Dane cattle. A total of 1325 unedited 305-day lactation records were obtained from Zimbabwe Livestock Identification Trust herd, with cows calving in the period 2002–2006. The Henderson Type III sum of squares in Genstat edition 14 program was used.
Parity, days in milk, year of calving and age of calving had significant effects (P< 0.05) on milk, fat and protein yield; milk yield; protein and fat yield; and milk and protein yield respectively. An increase in parity resulted in an increase in milk yield and composition up to parity 4 and started declining in parity 5. An increase in days in milk also resulted in an increase in milk yield whereby the milk yield increased at a declining rate as from 350 days to 550 days. Milk yield and composition declined in 2005 and there was a decline in protein yield from 2006 to 2009. Lastly, milk and protein yield resulted in a gradual increase up to 58 months followed by a declining trend up to 103 months. Month of calving and days dry did not have significant effects (P> 0.05) on milk yield and composition of Red Dane cattle in Zimbabwe. The study showed that non-genetic factors have a significant effect on milk yield and composition of Red Dane cattle in Zimbabwe. |
| format | Article |
| id | ir-11408-4376 |
| institution | My University |
| language | English |
| publishDate | 2021 |
| publisher | Livestock Research for Rural Development |
| record_format | dspace |
| spelling | ir-11408-43762022-06-27T13:49:06Z The effect of non-genetic factors on milk yield and composition of Red Dane cattle in Zimbabwe Nyamushamba, G. B. Chikwanda, D. Matondi, G H M Marandure, T Mamutse, J. Tavirimirwa, B. Banana, N Y D Dhliwayo, M. Non-genetic factors Herd Season Calving interval Red Dane cattle A study was carried out to establish non genetic factors affecting milk, butterfat and protein yields in Zimbabwean Red Dane cattle. A total of 1325 unedited 305-day lactation records were obtained from Zimbabwe Livestock Identification Trust herd, with cows calving in the period 2002–2006. The Henderson Type III sum of squares in Genstat edition 14 program was used. Parity, days in milk, year of calving and age of calving had significant effects (P< 0.05) on milk, fat and protein yield; milk yield; protein and fat yield; and milk and protein yield respectively. An increase in parity resulted in an increase in milk yield and composition up to parity 4 and started declining in parity 5. An increase in days in milk also resulted in an increase in milk yield whereby the milk yield increased at a declining rate as from 350 days to 550 days. Milk yield and composition declined in 2005 and there was a decline in protein yield from 2006 to 2009. Lastly, milk and protein yield resulted in a gradual increase up to 58 months followed by a declining trend up to 103 months. Month of calving and days dry did not have significant effects (P> 0.05) on milk yield and composition of Red Dane cattle in Zimbabwe. The study showed that non-genetic factors have a significant effect on milk yield and composition of Red Dane cattle in Zimbabwe. 2021-06-04T12:26:02Z 2021-06-04T12:26:02Z 2014 Article http://www.lrrd.org/lrrd26/5/nyam26093.htm http://hdl.handle.net/11408/4376 en Livestock Research for Rural Development;Vol. 26; No. 5 open Livestock Research for Rural Development |
| spellingShingle | Non-genetic factors Herd Season Calving interval Red Dane cattle Nyamushamba, G. B. Chikwanda, D. Matondi, G H M Marandure, T Mamutse, J. Tavirimirwa, B. Banana, N Y D Dhliwayo, M. The effect of non-genetic factors on milk yield and composition of Red Dane cattle in Zimbabwe |
| title | The effect of non-genetic factors on milk yield and composition of Red Dane cattle in Zimbabwe |
| title_full | The effect of non-genetic factors on milk yield and composition of Red Dane cattle in Zimbabwe |
| title_fullStr | The effect of non-genetic factors on milk yield and composition of Red Dane cattle in Zimbabwe |
| title_full_unstemmed | The effect of non-genetic factors on milk yield and composition of Red Dane cattle in Zimbabwe |
| title_short | The effect of non-genetic factors on milk yield and composition of Red Dane cattle in Zimbabwe |
| title_sort | effect of non-genetic factors on milk yield and composition of red dane cattle in zimbabwe |
| topic | Non-genetic factors Herd Season Calving interval Red Dane cattle |
| url | http://www.lrrd.org/lrrd26/5/nyam26093.htm http://hdl.handle.net/11408/4376 |
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