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Animal manure is of vital importance in maintaining soil fertility in semiarid west Africa due to the low level of use of inorganic fertilizer. Using data from Niger however, it is shown that insufficient animals are available to provide the manure needed to sustain crop yields on a long-term bas...


Williams, Timothy O.Powell, J.M.Fernández Rivera, S.[Soil fertility maintenance and food crop production in semi-arid West Africa: Is reliance on manure a sustainable strategy?]Soil fertility maintenance and food crop production in semi-arid West Africa: Is reliance on manure a sustainable strategy?

Despite its vital role in supporting crop production, a key question that has often been posed is whether sufficient amounts of manure are available to permit adequate food production and improvement of soil quality on a long-term basis. While this question can be addressed at a regional, nationa...


Williams, Timothy O.Powell, J.M.Fernández Rivera, S.[Manure availability in relation to sustainable food crop production in semi-arid West Africa: Evidence from Niger]Manure availability in relation to sustainable food crop production in semi-arid West Africa: Evidence from Niger

In Ethiopia smallholder livestock producers have adopted components of improved dairy technologies but the intensity of adoption remains low. It is hypothesized that credit-related constraints limit the ability of many smallholder farmers to make investments in crossbred cows and/or to purchase c...


Freeman, H.A.Jabbar, M.A.Ehui, Simeon K.Gebreselassie, N.[The role of credit in the uptake of improved dairy technologies in Ethiopia]The role of credit in the uptake of improved dairy technologies in Ethiopia

In this study we examined the genetic diversity of yak populations in the northernmost part of their current global distribution. Five Mongolian and one Russian yak populations as well as one Chinese yak population from the Qinghai-Tibetan Plateau, the putative centre of yak domestication, were a...


Xuebin, Q.Han JianlinLkhagva, B.Chekarova, I.Badamdorj, D.Rege, J.E.O.Hanotte, Olivier H.[Genetic diversity and differentiation of Mongolian and Russian yak populations]Genetic diversity and differentiation of Mongolian and Russian yak populations

Examines the structure of the herds & flocks of a sample of 41 households on the three Maasai group ranches in Kenya, relating differences in herd structure to livestock wealth of the household, to the stage of development of the group ranch, & to the variation in climate and production alternati...


King, J.M.Sayers, A.R.Peacock, C.P.Kontrohr, E.[Maasai herd and flock structures in relation to livestock wealth, climate and development]Maasai herd and flock structures in relation to livestock wealth, climate and development

On comparison of three milk procurement systems of open economy namely vendor, cooperative and integrated contract system members of integrated contract system were found to have better education and landholdings. Among the members of vendor and cooperatives there was less remarkable difference i...


Thirunavukkarasu, D.Sudeepkumar, N.K.[Comparative profile of milk producers in different marketing systems]Comparative profile of milk producers in different marketing systems

This paper investigates the factors associated with private sector smallholder livestock and the associated income of the poor in the Indian States of Andhra Pradesh. The data used are drawn from the Livelihood Options Study led by the Overseas Development Institute, London, specifically the Cens...


Akter, S.Farrington, JohnDeshingkar, P.Rao, L.Freeman, H.A.[Species diversification, livestock production and income of the poor in the Indian State of Andhra Pradesh]Species diversification, livestock production and income of the poor in the Indian State of Andhra Pradesh

Demographic parameters are useful for assessing productivity and dynamics of tropical livestock populations. Common parameters are the annual instantaneous hazard rates, which can be estimated by m/T (where m represents the number of the considered demographic events occurred during the year and ...


Lesnoff, Matthieu[Evaluation of 12-month interval methods for estimating animal-times at risk in a traditional African livestock farming system]Evaluation of 12-month interval methods for estimating animal-times at risk in a traditional African livestock farming system

A diagnostic survey was carried out to assess the available feed resources in Welayta Awraja (district) around Sodo area. The quantity of different feed resources available in the Awraja was estimated, based on crop produciton and land use information. Chemical composition and in vitro DM digesti...


Tolera, A.Said, A.N.[Assessment of feed resources in Welayta Sodo]Assessment of feed resources in Welayta Sodo
Autor: Hall, S.J.G.

Productivity data were gathered from Mashona cows (n=187) in 28 traditionally managed herds in two areas, separated by a corridor 20 – 30 km wide of almost uninhabited bush in NE Zimbabwe. Cattle are kept primarily to provide oxen for work. Cows in the southern area, which had been more affected ...


Hall, S.J.G.[Traditional livestock in semi-arid north eastern Zimbabwe: Mashona cattle]Traditional livestock in semi-arid north eastern Zimbabwe: Mashona cattle

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