Effects of poultry litter amended steer diets and subsequent manure collecting systems on nutrient recovery in composted manures
Concentrate feeds have become an important feature of dairy cattle diets on small-scale farms in the Central Kenya Highlands. Excreta derived from such diets can be of high quality if nutrient losses are minimized. Steers were fed a basal diet of Napier grass supplemented with either commercial dair...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Informa UK Limited
2006
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/30098 |
| _version_ | 1855515220787593216 |
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| author | Lekasi, J.K. Tanner, J.C. Kimani, S.K. Harris, P.J.C. |
| author_browse | Harris, P.J.C. Kimani, S.K. Lekasi, J.K. Tanner, J.C. |
| author_facet | Lekasi, J.K. Tanner, J.C. Kimani, S.K. Harris, P.J.C. |
| author_sort | Lekasi, J.K. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Concentrate feeds have become an important feature of dairy cattle diets on small-scale farms in the Central Kenya Highlands. Excreta derived from such diets can be of high quality if nutrient losses are minimized. Steers were fed a basal diet of Napier grass supplemented with either commercial dairy meal at 0.5% of liveweight (low concentrate - LC) or dairy meal (0.5% liveweight) plus poultry litter (0.5% liveweight) (high concentrate - HC). The amount of faeces and urine collected, and the dry matter, N and K contents of the resulting manure composted with wheat straw were significantly higher with the HC than with the LC diet, and this was the case also for P and Ca content when urine was added. Significant linear relationships were observed between the daily N intake and the daily N collected in faeces and urine. Dry matter, N, K and Ca were also higher when urine was added to the faeces and straw during accumulation than when urine was excluded, and this was the case also for P with high concentrate diets. Appropriate manure management could significantly improve nutrient conservation on smallholder farms in the Central Kenya Highlands and contribute to the sustainability of intensive cropping. |
| format | Journal Article |
| id | CGSpace30098 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2006 |
| publishDateRange | 2006 |
| publishDateSort | 2006 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace300982023-10-02T12:07:10Z Effects of poultry litter amended steer diets and subsequent manure collecting systems on nutrient recovery in composted manures Lekasi, J.K. Tanner, J.C. Kimani, S.K. Harris, P.J.C. organic fertilizers composts litter for animals poultry bullocks diet nutrients collections methods concentrates horticulture Concentrate feeds have become an important feature of dairy cattle diets on small-scale farms in the Central Kenya Highlands. Excreta derived from such diets can be of high quality if nutrient losses are minimized. Steers were fed a basal diet of Napier grass supplemented with either commercial dairy meal at 0.5% of liveweight (low concentrate - LC) or dairy meal (0.5% liveweight) plus poultry litter (0.5% liveweight) (high concentrate - HC). The amount of faeces and urine collected, and the dry matter, N and K contents of the resulting manure composted with wheat straw were significantly higher with the HC than with the LC diet, and this was the case also for P and Ca content when urine was added. Significant linear relationships were observed between the daily N intake and the daily N collected in faeces and urine. Dry matter, N, K and Ca were also higher when urine was added to the faeces and straw during accumulation than when urine was excluded, and this was the case also for P with high concentrate diets. Appropriate manure management could significantly improve nutrient conservation on smallholder farms in the Central Kenya Highlands and contribute to the sustainability of intensive cropping. 2006-01 2013-06-11T09:26:14Z 2013-06-11T09:26:14Z Journal Article https://hdl.handle.net/10568/30098 en Open Access Informa UK Limited Biological Agriculture and Horticulture;23(4): 413-428 |
| spellingShingle | organic fertilizers composts litter for animals poultry bullocks diet nutrients collections methods concentrates horticulture Lekasi, J.K. Tanner, J.C. Kimani, S.K. Harris, P.J.C. Effects of poultry litter amended steer diets and subsequent manure collecting systems on nutrient recovery in composted manures |
| title | Effects of poultry litter amended steer diets and subsequent manure collecting systems on nutrient recovery in composted manures |
| title_full | Effects of poultry litter amended steer diets and subsequent manure collecting systems on nutrient recovery in composted manures |
| title_fullStr | Effects of poultry litter amended steer diets and subsequent manure collecting systems on nutrient recovery in composted manures |
| title_full_unstemmed | Effects of poultry litter amended steer diets and subsequent manure collecting systems on nutrient recovery in composted manures |
| title_short | Effects of poultry litter amended steer diets and subsequent manure collecting systems on nutrient recovery in composted manures |
| title_sort | effects of poultry litter amended steer diets and subsequent manure collecting systems on nutrient recovery in composted manures |
| topic | organic fertilizers composts litter for animals poultry bullocks diet nutrients collections methods concentrates horticulture |
| url | https://hdl.handle.net/10568/30098 |
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