Rangeland Ecology & Management
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Displaying 151 - 167 of 167 results
- Library Collection RecordEffects of extreme livestock pressure on the abundance and distribution of a drought-deciduous shrub Sericocomopsis pallida, and effects of the shrub canopy on microclimate, soil fertility and grass…Publication Date 1989
- livestock
- ecology
- grasslands
- drought
- plant autecology
- plant production
- plant community ecology
- soils
- savanna
- soil nutrients
- Africa
- Library Collection RecordPreviously described forage and beef models were used to investigate the biological productivity of continuous (CG) and rotational grazing (RG) systems on common bermudagrass (Cynodon dactylon (L.)…Publication Date 1989
- cattle
- foraging ecology
- modelling
- animal production
- management
- stocking rates
- grazing
- grasslands
- Africa
- Library Collection RecordThis article addresses the potential land use conflict between trees and cattle. The search for pasture frequently leads to the large-scale destruction of trees yet, paradoxically, when grazing land…Publication Date 1989
- cattle
- grazing
- pasture management
- communal farming
- land use
- management
- rangelands
- decision support systems
- sustainability
- Africa
- Library Collection RecordThis paper discusses options for improvement of the Borana pastoralist system. Overall, the prospects for increasing offtake of livestock or milk, by improvements in marketing facilities alone are…Publication Date 1988
- pastoralism
- animal production
- management
- drought
- livestock
- Supplementary Feeding
- Africa
- Library Collection RecordRainfall and the length of the growing seasons are highly variable in the semiarid East African rangelands such as Borana. Dry years occur about one year in five and droughts one year in twenty.…Publication Date 1988
- pastoralism
- animal production
- management
- drought
- livestock
- Supplementary Feeding
- cattle
- livestock
- Africa
- Library Collection RecordDifferences in grazing behavior among Hereford (HH), 50% Angus-50% Hereford (AH), 50% Simmental-50% Hereford (1S1H) and 75% Simmental-25% Hereford (3S1H) lactating cows grazing foothill range were…Publication Date 1988
- grazing
- cattle
- foraging ecology
- pasture management
- animal production
- rangelands
- Africa
- Library Collection RecordLearning early in life may play an important role in the development of dietary habits and foraging skills of domestic ruminants. In this review we (1) explore the theoretical and empirical bases of…Publication Date 1987
- diet selection
- foraging ecology
- livestock
- management
- Africa
- Library Collection RecordOn semi-arid rangelands, stems and other standing dead material may accumulate in bunch-grasses and restrict access to new growth by grazing animals. We found that the presence and heights of…Publication Date 1987
- grazing
- rangelands
- rangeland condition
- cattle
- foraging ecology
- diet selection
- Africa
- Library Collection RecordThe design of improved technology or production policies depends upon evaluation of alternative options in terms of their efficiency. Measurement of the efficiency of a pastoral livestock system may…Publication Date 1986
- policies
- pastoralism
- carrying capacity
- livestock
- rangeland condition
- Economic Aspects
- management
- Africa
- Library Collection RecordGross energy and crude protein balances of cattle in traditional systems and ranching in eastern Botswana have been estimated. The calculations show that ranching is more productive on a per animal…Publication Date 1986
- cattle
- plant production
- animal production
- subsistence agriculture
- socio-economic aspects
- Africa
- Library Collection RecordIn a series of three experiments, the effect of offering conserved forage indoors to grazing dairy cows was examined. In Experiment 1, hay was offered ad libitum for 45 min after morning milking. In…Publication Date 1986
- animal production
- animal nutrition
- forage quality
- Forage Quantity
- grazing
- diet selection
- cattle
- Africa
- Library Collection RecordA mathematical model is presented of the regional cattle herd within a subsistence pastoral system, in a semi-arid region, where empirical data on herd production are restricted to a few basic…Publication Date 1985
- modelling
- Economic Aspects
- cattle
- subsistence agriculture
- pastoralism
- stocking rates
- Africa
- Library Collection RecordA model of kleingrass (Panicum coloratum L.) growth and utilization by steers is presented. The model included stochastic inputs of climatological characteristics, water retention at different soil…Publication Date 1984
- modelling
- cattle
- grazing
- grasslands
- animal nutrition
- plant production
- stocking rates
- decision support systems
- Africa
- Library Collection RecordA forage model and a cattle production model were interfaced and adapted for tropical production conditions in East Africa. The objectives of the modelling were to structure and conceptualise a…Publication Date 1981
- modelling
- cattle
- animal production
- management
- grazing
- communal farming
- policies
- Africa
- Library Collection RecordOne of the major diseases affecting human beings and livestock in Africa, trypanosomiasis--known in its common human form as sleeping sickness--remains resistant to general eradication, a wide belt…Publication Date 1979
- disease
- livestock
- insects
- economics
- ecology
- Africa
- Library Collection RecordIt is as important to measure the degree of risk involved as it is to measure the probable return from an investment project. The expected returns from such a project are usually calculated from a…Publication Date 1977
- rangeland condition
- agriculture
- Economic Aspects
- livestock
- Africa
- Library Collection RecordThe environment of the highveld of south-central Africa is such that most grasslands are only temporary and the spread of trees into grassland--[`]bush encroachment'--is only checked by periodic…Publication Date 1973
- grasslands
- management
- indigenous encroaching species
- fire
- biological control
- cattle
- goats
- Africa