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Performance of Medicago sativa under dryland conditions on the eastern Highveld
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: N F G Rethman --- Department of Plant Production, J J Odendaal --- Department of Agriculture & Water Supply, Transvaal Region, C C De Witt --- Department of Agriculture & Water Supply, Transvaal Region,Increased livestock numbers and improved animal performance based on dryland lucerne pastures requiring little or no nitrogenous fertilizer have been demonstrated to be feasible on the eastern Highveld. With large scale planting of lucerne‐based pasture (25% of arable land) 350... -
Grazing of raphanus sativus. L (Japanese Radish)1
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: N.F.G. Rethman --- Department of Plant Production, Gillian Heyns --- Department of Plant Production,The performance of young woolled sheep was markedly better when grazing Japanese radish early in winter, when more leaf was available .Continuous grazing resulted in better performance than rotational or zero grazing. -
the utilization by sheep of winter and spring Smuts finger and Kikuyu pastures
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: H.H. Meissner --- Department of Livestock Science, DagmarV. Paulsmeier --- Department of Livestock Science,An experiment was conducted on Smuts finger (Digitaria eriantha ssp. eriantha) and Kikuyu (Pennisetum clandestinum) pastures during a winter and spring period to study the effect of postruminal energy and/or protein supplementation on the selection pattern and performance of sheep... -
The influence of ruminant digestion on the germination of Pennisetum clandestinum hochst. ex chiov1
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: N.F.G. Rethman --- Department of Plant Production,Approximately half of the viable Pennisetum clandestinum seed fed to sheep was found to be viable after passing through the digestive system. 82 % of the viable seed was excreted within 28 hours of ingestion with no viable seed being... -
Plant species dynamics in the Southern Tall Grassveld under grazing, resting and fire
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: C.D. Morris --- Department of Grassland Science, Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South Africa M.B. Hardy --- Department of Agricultural Development (Natal Region), Republic of South AfricaAn analysis of temporal changes in botanical composition in a long‐term grazing trial indicates that species dynamics in the Southern Tall Grassveld of Natal are determined by the specific combination of grazing, mowing and fire impacts. Species composition of a... -
A critical analysis of veld management recommendations for sourveld in the south‐eastern Transvaal
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: D.L. Barnes --- Department of Agricultural Development (Transvaal Region), Republic of South AfricaSurveys have shown that the grazing value of veld in the south‐eastern Transvaal is well below the estimated potential. Extension efforts aimed at rectifying the situation have been unsuccessful in that most recommendations have not been acceptable to producers. An... -
Seasonal influence on diet selection of sheep grazing a weedy dryland lucerne pasture
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: T.S. Brand F. Franck J. CoetzeeThe experiment was conducted to determine the seasonal effects on the availability, chemical composition and digestibility of a grazing dry-land lucerne pasture, as measured on samples either collected by hand or with oesophageally fistulated (OF) sheep. The pasture was monitored... -
The use of trees, shrubs and herbs in livestock production by communal farmers in northern KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: N Kunene RAC Wilson NP MyeniA survey of the use of trees, shrubs and herbs for livestock production was conducted through questionnaires among 90 farmers in the communal areas of northern KwaZulu-Natal in South Africa. The areas surveyed were located at Mtubatuba, Hluhluwe, Kwadlangezwa and... -
Using rain-use efficiency to explore livestock production trends in rangelands in the Transkei, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: AR Palmer A AinslieWe qualitatively describe the condition of communally managed rangelands in the Transkei, South Africa, using GIS and high resolution near-infrared imagery. Using livestock census data from 28 magisterial districts in the Transkei, we explored the trends in livestock biomass from... -
Defoliation patterns of three grass species in sourveld grazed by cattle and sheep
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M.B. Hardy --- , Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South Africa C.D. Morris --- , Republic of South AfricaA point‐based technique was used to determine the effects of grazing, due to stocking rate and cattle‐to‐sheep ratio, on the defoliation pattern of three grass species. At each of 100 systematically located points per grazing treatment the nearest plant of... -
An evaluation of dryland legume and legume‐grass pastures based on lucerne and red clover, with sheep, using a put‐and‐take system in the outeniqua area of the Southern Cape
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J.M. van Heerden --- Department of Agriculture, Republic of South Africa P.R. Botha --- Department of Agriculture, Republic of South AfricaThe production of a pure lucerne (Medicago sativa) pasture, two lucerne‐grass pastures and two red clover (Trifolium pratense)‐grass pastures was compared at two grazing pressures (3.5 and 4.0 kg DM per small stock unit d‐1) in the Outeniqua area, using... -
The effects of mixed‐species grazing on the performance of cattle and sheep in Highland Sourveld
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M.B. Hardy --- , Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South AfricaThe performance of cattle and sheep in relation to cattle‐to‐sheep ratio was measured over four grazing seasons. Rainfall for the first three grazing seasons was similar to the long‐term mean of 790 mm whilst 1992/1993 was a relatively low rainfall... -
The effect of past grazing intensity on the vigour of Themeda triandra and Tristachya leucothrix
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: G.M. Peddie --- Department of Grassland Science, Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South Africa M.B. Hardy --- KwaZulu‐Natal Department of Agriculture,Tuft vigour of important sourveld grasses was indexed by measuring the regrowth, during a full season's rest, of tufts of Themeda triandra Forssk. and Tristachya leucothrix Nees, which (1) had not been grazed, (2) had been leniently, or (3) had... -
Perspective: Towards improved grazing management recommendations for sourveld
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: K.P. Kirkman --- , Republic of South Africa A. Moore --- , Republic of South AfricaCritical evaluation of grazing management recommendations for sourveld revealed scientific, economic and practical deficiencies. These recommendations are seldom adopted. Recent scientific evidence has facilitated the adoption of certain principles in new practical, economically viable recommendations aimed at maintaining or improving... -
Determinants of profit efficiency among smallholder sheep farmers in South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Y. S. Nyam --- , South Africa T. O. Ojo --- , South Africa J. A. Belle --- , South Africa A. A. Ogundeji --- , South Africa A. A. Adetoro --- , South AfricaLivestock production contributes significantly to the agricultural sector in South African partly because it is a source of cash income especially for smallholder farmers who depend on agriculture for their livelihood. This article analyzes the competitiveness and profitability of smallholder... -
Does Bonga sheep producers’ cooperative membership improve households’ income in southern Ethiopia?
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kassa Tarekegn --- Southern Agricultural Research Institute, Ethiopia Yishak Shitaye --- Southern Agricultural Research Institute, Ethiopia Tesfaye Gafaro --- Southern Agricultural Research Institute, EthiopiaBonga sheep is one among the known indigenous sheep breeds in Ethiopia with a high rate of growth and weight gain under smallholder management. To enhance the sheep productivity, 16 Bonga sheep breed improvement cooperatives were established in Kaffa zone... -
‘The mountain has a story to tell’: transhumant production systems in the US Intermountain West
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Hailey Wilmer --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Jonathan Spiess --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Katherine D White --- Department of Ecosystem Science and Management, University of Wyoming, USA Amira Burns --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Steven Cox --- Former Dubois Ranger District, Caribou-Targhee National Forest, USA John Derek Scasta --- Laramie Research and Extension Center, Department of Ecosystem Science and Management, University of Wyoming, USA Devan Allen McGranahan --- Livestock and Range Research Laboratory, USDA Agricultural Research Service, USA Carrie S Wilson --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Will Munger --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA J Bret Taylor --- USDA-ARS Range Sheep Production Efficiency Research Unit, USAGrazing systems research has taken a notable social-ecological turn in response to recent debates, and integrative work is still needed to address gaps in our understanding of multiscalar dynamics in transhumant systems. Transhumance encompasses diverse cultures, ecological relationships, and traditions... -
Sustainable intensification in rangelands of the southernmost region of Chile
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Raúl J Lira Fernandez --- Instituto de Investigaciones Agropecuarias, Centro Regional de Investigación Kampenaike, Chile Andres F Cibils --- Livestock, Forage and Pasture Management Research Unit, USDA ARS OCPARC, USARangeland-based sheep ranching has shaped the agricultural economy of Chile’s southernmost grasslands for over a century and a half. Ranching systems in the region, established in the late 1800s, transitioned from large European corporate enterprises, common until the mid-20th century,...