10 research outputs found

    The ‘youth and agriculture’ problem: implications for rangeland development

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    There is a common perception in South Africa that the youth are not interested in agriculture, leading to two concerns: first, that this is exacerbating the youth unemployment crisis, and second, that the already low levels of agricultural activity in the former homelands/reserves are likely to drop further, imperiling any hope for rural development in the future. This article explores the ‘youth in agriculture’ problem from various angles. First, it surveys the various explanations prevalent in the policy community regarding the ‘youth in agriculture’ problem. Second, it gathers together the sparse research evidence regarding the participation/nonparticipation of the youth in agriculture. Third, it reflects on the intersection between the ‘youth in agriculture’ problem and the challenges of promoting livestock production in the communal rangelands of the former homelands/reserves. The article tentatively argues that there is a strong parallel between the ‘youth in agriculture’ problem and the question of commercialisation of livestock production, in the sense that the pursuit of the latter is likely to comprise at least a partial solution to the former. By the same token, the article argues that both face a common challenge, namely the high concentration of cattle and goat ownership in the former homelands/reserves.Keywords: agriculture, rangeland commons, youthAfrican Journal of Range & Forage Science 2013, 30(1&2): 23–2

    Feeding ecology of four livestock species under different management in a semi-arid pastoral system in South Africa

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    The Leliefontein communal area in Namaqualand is grazed by mixed species herds that have multiple benefits for pastoralists. This study assessed how the management (herding and free-ranging) of different livestock herds affects their feeding ecology during the wet and dry seasons in a semi-arid shrubland. By using direct observations of livestock grazing in the field, we established their habitat preferences, diet selection and resources overlap. Results indicate that all free-ranging livestock can be considered grazers with cattle being selective. When sheep are herded, they tend to be more generalist feeders and herded goats are browsers. Livestock diet selection and forage preferences are largely linked to the habitats in which they graze and browse. Dietary overlap is highest between free-ranging livestock irrespective of season, whereas herded livestock are able to consume a food source with little potential competition from other livestock. Although the wet-season annual forage resources are able to sustain the livestock population in Leliefontein, this study concludes that the overdependence on annual vegetation would make livestock vulnerable during drought periods when forage production is low.Keywords: communal rangelands, diet selection, livestock food preferences, Namaqualand, renostervel

    DNA and Double-Stranded Oligonucleotides

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    Mechanisms of free radical-induced damage to DNA

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    Fundamentals of bicarbonate secretion in epithelia

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    Fundamentals of Bicarbonate Secretion in Epithelia

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