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Dried Poultry Manure as a Nitrogen Supplement for Young Cattle on Winter Grazing.

Published online by Cambridge University Press:  21 November 2017

T. Smith ,
S. Sibanda ,
C.R. de Souza ,
C. Chakanyuka  and
R.M. Chihora
T. Smith
Affiliation:
Grasslands Research Station, P.B. 3701, Marondera, Zimbabwe
S. Sibanda
Affiliation:
Grasslands Research Station, P.B. 3701, Marondera, Zimbabwe
C.R. de Souza
Affiliation:
Grasslands Research Station, P.B. 3701, Marondera, Zimbabwe
C. Chakanyuka
Affiliation:
Grasslands Research Station, P.B. 3701, Marondera, Zimbabwe
R.M. Chihora
Affiliation:
Hughes Hall, Cambridge, U.K
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Extract

A feeding trial with young cattle, supported by measurements of digestibility and intake in lambs, was carried out to compare dried poultry manure (DPM) with cottonseed meal (CSM) or a urea maize mix (UM) as supplements to unimproved dry season grazing.

Eighty Mashona steers, aged 9 months, initial live-weight 157 kg, were divided into eight groups, one of which was used as an initial slaughter group. The remainder were grazed by day and penned overnight (119 days). Whilst in the pens they received either no supplement (C) or DPM; CSM; UM; DPM + CSM; CSM + CSM; UM + CSM. The single supplements contained 150g crude protein and the double supplements 250 g crude protein per day. All animals were offered a mineral supplement and water was available during the day. At the end of the dry season half of the animals from each group were slaughtered and half retained to measure compensatory growth.

Twelve lambs housed in crates each received one of the treatments (C, DPM, CSM, UM) with veld hay ad libitum (CP 2.5%) to measure digestibility and intake.

Type
The Utilisation of Agricultural Crops and by-products for Industrial and Animal use in Britain and the Third World
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1987 , March 1987 , pp. 65
Copyright
Copyright © The British Society of Animal Production 1987

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