Effects of poultry litter amended steer diets and subsequent manure collecting systems on nutrient recovery in composted manures

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dc.creatorLekasi, J.K.
dc.creatorTanner, J.C.
dc.creatorKimani, S.K.
dc.creatorHarris, P.J.C.
dc.date2006-01
dc.date2013-06-11T09:26:14Z
dc.date2013-06-11T09:26:14Z
dc.date.accessioned2026-06-27T16:33:04Z
dc.descriptionConcentrate 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.
dc.identifierhttps://hdl.handle.net/10568/30098
dc.identifier.urihttp://hdl.handle.net/123456789/126231
dc.languageen
dc.publisherInforma UK Limited
dc.rightsOpen Access
dc.sourceBiological Agriculture and Horticulture;23(4): 413-428
dc.subjectorganic fertilizers
dc.subjectcomposts
dc.subjectlitter for animals
dc.subjectpoultry
dc.subjectbullocks
dc.subjectdiet
dc.subjectnutrients
dc.subjectcollections
dc.subjectmethods
dc.subjectconcentrates
dc.subjecthorticulture
dc.titleEffects of poultry litter amended steer diets and subsequent manure collecting systems on nutrient recovery in composted manures
dc.typeJournal Article

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Instituto Internacional de Investigaciones Pecuarias (ILRI)