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Autor: Wilson, R.T.

The result of an intensive 15 months study of 10 flocks of indigenous sheep is recorded. Lambing rates approach 1.5 lambs per ewe per year, but a death rate of 23 percent and on off take of 27 per cent, means that flock numbers are probably slightly declining. Twins account for 14 per cent of all...


Wilson, R.T.[Studies on the livestock of southern Darfur, Sudan. III. Production traits in sheep]Studies on the livestock of southern Darfur, Sudan. III. Production traits in sheep

Two studies were conducted: the first study evaluated the production potential of indigenous (Tswana) chickens under an extensive free-range management system in the Gaborone agricultural region of Botswanal; and the second study was a survey of 25 randomly selected, commercial small-scale broile...


Aganga, A.A.Omphile, U.J.Malope, P.Chabanga, C.H.Motsamai, G.M.Motsumi, L.G.[Traditional poultry production and commercial broiler alternatives for small-holder farmers in Botswana]Traditional poultry production and commercial broiler alternatives for small-holder farmers in Botswana

Conservation Agriculture (CA) is being advocated to enhance soil health and sustain long term crop productivity in the developing world. One of CA's key principles is the maintenance of soil cover often by retaining a proportion of crop residues on the field as mulch. Yet smallholder crop–livesto...


Valbuena, DiegoErenstein, OlafHomann-Kee Tui, SabineAbdoulaye, TahirouClaessens, LievenDuncan, Alan J.Gerard, Bruno G.Rufino, Mariana C.Teufel, NilsRooyen, Andre F. vanWijk, Mark T. van[Conservation agriculture in mixed crop-livestock systems: Scoping crop residue trade-offs in Sub-Saharan Africa and South Asia]Conservation agriculture in mixed crop-livestock systems: Scoping crop residue trade-offs in Sub-Saharan Africa and South Asia
Autor: Wilson, R.T.

The production performance of indigenous goats under sedentary and transhumant management systems in Sudan, Mali and Kenya are investigated. Age at first parturition was 15.5 months in Mali but was delayed to 18 months in Kenya where management was better. Kidding intervals were 7.8, 10.6 and 9 m...


Wilson, R.T.[Indigenous goats: Productivity in traditional livestock systems of semi-arid Africa]Indigenous goats: Productivity in traditional livestock systems of semi-arid Africa

This study investigated the effects of different mixing ratios of crop residues and biochar with liquid digestate from anaerobically treated pig manure on CH4, CO2, and N2O emissions over 84 days in a system of passive aeration composting, resembling typical Vietnamese solid manure storage condit...


Vu, Quynh DuongNeergaard, Andreas deTran, TDHoang, HTTVu, VTKJensen, Lars S.[Greenhouse gas emissions from passive composting of manure and digestate with crop residues and biochar on small-scale livestock farms in Vietnam]Greenhouse gas emissions from passive composting of manure and digestate with crop residues and biochar on small-scale livestock farms in Vietnam
Autor: Grandin, B.E.

Reviews the appropriateness of three major assumptions underlying pastoral development in East Africa, viz, economic irrationality of pastoralists, the unchanged nature of pastoral production systems, and the applicability of western models to pastoral development.


Grandin, B.E.[Pastoral culture and range management: Recent lessons from Maasailand]Pastoral culture and range management: Recent lessons from Maasailand

Development of trade in livestock and meat between countries of the sahelian zone and importing countries in west africa and central africa, with particular reference to price trends and effects of the drought on the breeding stock.


International Livestock Centre for Africa[Commodities - Livestock and meat exports after the drought in the Sahel]Commodities - Livestock and meat exports after the drought in the Sahel

Background The impacts of vaccination on the transmission of Rift Valley fever virus (RVFV) have not been evaluated. We have developed a RVFV transmission model comprising two hosts—cattle as a separate host and sheep and goats as one combined host (herein after referred to as sheep)—and two vec...


Gachohi, John M.Njenga, M.K.Kitala, P.Bett, Bernard K.[Modelling vaccination strategies against Rift Valley fever in livestock in Kenya]Modelling vaccination strategies against Rift Valley fever in livestock in Kenya
Botero Botero, Raúl[Potencial productivo de las pasturas asociadas con leguminosas para el sistema de doble propósito en suelos ácidos de América Tropical]Potencial productivo de las pasturas asociadas con leguminosas para el sistema de doble propósito en suelos ácidos de América Tropical

Presents a theoritical outline of the techniques in the use of tritiated water (HTO) which can be used to estimate total body water, body composition, water turnover, milk intake and feed intake. Highlights its potential errors and gives a comprehensive methodology for the use of tritiated water ...


Nicholson, M.J.[The use of tritiated water in livestock research in Africa: Theory, application, methodology and potential errors of the technique]The use of tritiated water in livestock research in Africa: Theory, application, methodology and potential errors of the technique

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