BUAN Research Hub: Recent submissions
Now showing items 701-720 of 733
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Experimental and numerical evaluation of analytical volume balance model for soil water dynamics under drip irrigation
(Soil Science Society of America, 2003)The interpretation and subsequent modeling of soil water dynamics in presence of active plant uptake remains a challenge. Despite many simplifying assumptions in their development, analytical models offer simple and easy ... -
Enhancing quality of tertiary education through programme accreditation: a case of Botswana
(Elservier, 2010)This study presents narrated facts about the complex nature of accrediting tertiary education programs in Botswana. Content analysis procedures were employed to characterise the accreditation process experienced by local ... -
Elephant impact on shoot distribution on trees and on rebrowsing by smaller browsers
(Elservier, 2006-10)In order to determine the effects of a megaherbivore, the African elephant (Loxodonta africana) on browse available for mesoherbivores, we assessed the vertical distribution of shoots (< 6 mm in diameter) on trees with ... -
Effects of planting date and transgenic maize hybrids on Fusarium ear rot severity at Hoytville and Wooster, Ohio, USA
(Botswana University of Agriculture and Natural Resources, 2014)A three year study was conducted at Hoytville and Wooster, Ohio from 2006 to 2008 to find out how sequential planting of transgenic and non-transgenic maize influence Fusarium ear rot of maize. Maize hybrids with different ... -
Effects of combined apertures on the magnitudes of electric coupling coefficients of combline resonators
(IOP Publishing, 2014)The effects of differently positioned and combined apertures on the magnitudes of electric coupling coefficients of two identical combline resonators are analysed. Coupling coefficient, k-vertical symmetry provides greater ... -
Effectiveness of field practical training for competence acquisition among students of Botswana College of Agriculture
(Academic Journals, 2011-02-18)Field practical training is a requirement for all students who enrol in any program in the Botswana College of Agriculture, as it has been discovered that, experiential learning complements theoretical classroom teaching. ... -
Effect of sorghum variety on chemical composition and in vitro digestibility of malted grains from Botswana
(Botswana University of Agriculture and Natural Resources, 2013)This study investigated the effects of variety of sorghum on nutritional levels of malted grains. Unscreened grains of BSH1, Mahube, Phofu and Segaolane were malted and analysed for crude protein, minerals, fiber, organic ... -
Effect of control plot density, control plot arrangement, and assumption of random or fixed effects on nonreplicated experiments for germplasm screening using spatial models
(Crop Science Society of America, 2005)Early generation selection experiments typically involve several hundred to thousands of lines. Various systematic and statistical techniques have been developed to increase effectiveness and efficiencies in such experiments, ... -
Economics of Smallholder Sorghum and Maize Production Systems in Botswana: a Comparative Analysis
(Journal of Agriculture in the Tropics and Subtropics, 1997-10)Sorghum and maize, the predominant crops of smallholder farmers in Botswana, compete for the same limited resources of the farmers. Unfortunately very little is known about their relative economic efficiency. Using farm-level ... -
Dry matter and crude protein degradability of four parasitic plants (Mistletoes) associated with browse trees in Botswana
(Springer, 2003)Four parasitic plants (Tapinanthus lugardii, Erianthenum ngamicum, Viscum rotundifoliumand Viscum verrucosum) associated with browse trees in Botswana were evaluated for the degradability of their dry matter (DM) and crude ... -
Economic viability of milk production systems in Botswana
(Botswana University of Agriculture and Natural Resources, 1997-10)Botswana imports approximately 75% of its milk requirement. These imports are mainly from the Republic of South Africa and Zimbabwe and an increase in milk production has been govemment's concern. However there has not ... -
Documentation of indigenous knowledge and best-bet practices on the use of animals and plants for sustainable natural resources management in Botswana
(Botswana University of Agriculture and Natural Resources, 2014)A study was carried out to document indigenous knowledge (IK) and practice on use of animals and plants, and best-bet practices (BBPs) during Phase I (2003-2004) of the Desert Margins Programme (DMP), whose overall objective ... -
Documentation of ethnoveterinary practices used in family poultry in Botswana
(Veterinary World, 2012-12-19)Aim: To document the use of indigenous plants used by family poultry rearers to treat and control diseases and parasites in 15 villages of Botswana. Materials and Methods: A total of 1000 family poultry rearers in 15 ... -
Determination and source apportionment of selected heavy metals in aerosol samples collected from Sebele
(Science Publication, 2013-05-17)Bush fires and dust in the dry winter months establish moderately high background levels of aerosols. Emissions into the atmosphere by copper mines, coal mines and vehicular emissions are all possible sources of air pollution ... -
Correlated responses in tissue weights measured in vivo by computer tomography in Dorset Down sheep selected for lean tissue growth
(Bureau for Scientific Publications, 2003)The aim of this study was to estimate correlated responses in lean, fat and bone weights in vivo in Dorset Down sheep selected for lean tissue growth. Over the period 1986-1992 inclusive, the lean tissue growth line had ... -
Cooling laying hens by intermittent partial surface sprinkling
(American Society of Agricultural and Biological Engineers, 2000)This study investigated the efficacy of intermittent partial surface sprinkling to cool caged layers at 20, 38, and 56 weeks of age. Ten birds were used per age group with two birds per paired trial (Experiment, Expt, and ... -
Color stability and tenderness variations within the gluteus medius from beef top sirloin butts
(Elservier, 2013-06-10)Beef top sirloin butts (n = 48) from USDA quality grade (QG; upper 2/3 US Choice vs. US Select) and yield grade categories (YG; 1 and 2 vs. 4 and 5) were aged 14 days, GM steaks were cut, with 2 steaks removed from the ... -
Chemical composition of Mopane worm sampled at three sites in Botswana and subjected to different processing
(Springer Science, 2008-12-06)Effects of site and degutting on chemical composition of mopane worm were investigated. Samples were cooked for 30 min in either brine or in plain water. Samples from Moreomabele were high in acid detergent fibre (ADF) ... -
Changes in herbaceous species composition in the absence of disturbance in a cenchrus biflorus roxb. Invaded area in Central Kalahari Game Reserve, Botswana
(Hindawi Publishing Corporation, 2011-04-12)A-nine year study was carried out to investigate changes in herbaceous species composition in an area invaded by Cenchrus biflorus Roxb, an exotic invader grass species. The study ensued termination of livestock and human ... -
Calcium-Ammonium Selectivity of Two Benchmark Soils from Botswana as Assessed by Competing Semi-empirical Ion Exchange Equations
(Taylor & Francis, 2015)The effectiveness of lime-ammonium-nitrate (LAN) as a nitrogen (N) fertilizer in weathered soils depends on the respective selectivity for ammonium (NH4) and calcium (Ca) by the soils. The study assessed Ca2+/NH4+ exchange ...
