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Now showing items 101-120 of 680
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Wastewater treatment using vegetated submerged bed constructed wetlands for nitrogen removal
(Washington State University, 2006-12)Vegetated submerged bed (VSB) constructed wetlands are engineered, low operation and maintenance cost wastewater and stormwater treatment technologies primarily designed for small facilities. The objectives of this ... -
Food webs and energy fluxes on a seasonal floodplain: The influence of flood size
(SpringerLink, 2007)The world’s largest inland delta, located on the Okavango River in Botswana, faces major changes in the annual flooding size and duration due to climatic shifts and increased water use. We examined several parameters of a ... -
Allelopathic activity of sunflower (Helianthus annuus L.) on growth and nodulation of Bambara Groundnut (Vigna subterranea (L.) Verdc.)
(Asian Network for Scientific Information, 2007)Laboratory and greenhouse experiments were conducted to determine the allelopathic activity of sunflower (Helianthus annuus) on seed germination, seedling growth, flowering and nodulation of bambara groundnut (Vigna ... -
Iowa teachers' perceptions regarding the effectiveness of agriculture teacher education programs in addressing teaching standards and criteria
(Iowa State University, 2007)The purpose of this study was to explore and describe perceptions of secondary school-level teachers of agriculture in Iowa regarding the effectiveness of agricultural education teacher preparation programs in addressing ... -
Profitability of dry season beef feed-lotting in grain deficit countries: the case of Botswana
(Livestock Research for Rural Development, 2007)In grain deficit countries such as Botswana, the costs of feed may render beef cattle feed-lotting uneconomical because of competition with human for grains. An experimental trial was conducted with forty-nine beef ... -
Performance of Tswana Goats Fed Two Levels of Terminalia serecia and Boscia albitrunca as Supplement to Buffel Grass
(Medwell Publications, 2007)This study was to evaluate the impact of feeding Terminalia serecia and Boscia albitrunca at 2 levels on growth rate and feed intake of Tswana goats. The experiment was conducted at Botswana College of Agriculture farm for ... -
African Yam Bean: An Under-Utilized Legume with Potential as a Tuber and Pulse Crop
(Taylor & Francis, 2007)AfricanYamBean (Sphenostylisstenocarpa)isalegume that provides nutritionally rich seeds, tubers and leaves for human consumption. Production relies upon the cultivation of landraces and, to some extent, the collection of ... -
Contribution of red alder to soil nitrogen input in a silvopastoral system
(Springer-Verlag, 2007-01-11)Studies on Alnus rubra Bong. (red alder) were carried out to assess its potential for use as a component of a silvopastoral system. Comparison was between two treatments: red alder at 400 stems ha−1 (silvopasture) and red ... -
Effect of traditional processing methods on chemical composition and in vitro true dry matter digestibility of the Mophane worm (Imbrasia belina)
(Elservier, 2007-02)Effects of traditional processing methods on the nutritional value of Mophane worm (Imbrasia belina) were evaluated. Samples were degutted or not degutted. The worms were further subjected to either cooking for 1 h (remaining ... -
The utilization by domestic ruminants in Botswana of treatment diets containing cereal crop stovers treated with urea or urea and molasses
(University of the Free State, 2007-03)The studies were aimed at examining the effects of treatment with urea or urea and molasses on the physical and chemical composition of stovers of sorghum, maize and millet and assessing the potential of these treated ... -
Effects of phenolics in sorghum grain on its bitterness, astringency and other sensory properties.
(Wiley, 2007-06-12)Despite the fact that condensed tannins are potentially important antioxidants, there is a general belief that tannins in sorghum confer objectionable sensory attributes. The objective of this study was to determine ... -
On a Class of finite rings
(Taylor & Francis, 2007-06-27)In [7], Corbas determined all finite rings in which the product of any two zerodivisors is zero, and showed that they are of two types, one of characteristic p and the other of characteristic p2. The purpose of this paper ... -
Culicoides (Diptera: Ceratopogonidae) associated with laying chickens at Sebele, Gaborone, Botswana.
(Cambridge University Press, 2007-09-18)A total of 2083 Culicoides spp. were collected in an ultraviolet light trap hung from the rafters of a laying chicken house at a location in Sebele, giving a mean daily catch of 208.3 biting midges. C. imicola was the most ... -
Diseases and management of indigenous chickens in Oodi, Kgatleng, Botswana.
(Cambridge University Press, 2007-09-18)A total of 215 indigenous chickens were found in 10 homesteads visited in Oodi, Kgatleng, Botswana from June to July 1999. The mean (SD) flock size was 21.5 (11.6) with a range of 7–47. The chickens were not housed but ... -
Influence of culture and stakeholders In Botswana’s dairy system
(The University of Queensland, 2007-12-12)ABSTRACT The government of Botswana initiated dairy industry development in the early 1980’s to reduce the country’s dependence on milk imports from neighbouring countries, particularly South Africa and Zimbabwe. The ... -
Nutritional effects of supplementary feeding on maternal blood metabolites, cortisol, thyroid hormones levels and on outcome of pregnancy of dry season kidding Tswana goats
(Livestock Research for Rural Development, 2008)The nutritional effects on maternal blood metabolites levels and outcome of pregnancy in goats were investigated. The supplementary diet (106g/kg crude protein) was given to S animals at a rate of 400g/animal/d. Two weeks ... -
Community-Based Natural Resource Management and Tourism Partnership in Botswana: Which Way Forward?
(The Botswana Society, 2008)This exploratory study uses two case studies of the Chobe Enclave Community Trust (CECT) in Chobe District and the Sankuyo Tshwaragano Management Trust (STMT) in the Okavango Delta area of Botswana to examine the ... -
A survey of ethno-veterinary practices adopted in the treatment of diseases or indigenous chickens in Kgatieng district, Botswana
(Botswana University of Agriculture & Natural Resources, 2008)A survey questionnaire aimed at collecting knowledge on ethno-veterinary practices used in the treatment of diseases of indigenous chickens in order to lay a foundation for further scientific study and validation was ... -
Third stage lanae of Contracaccuin species in catfish (Clariasgariepinus) from Gaborone dam, Botswana
(Botswana University of Agriculture & Natural Resources, 2008)A study was conducted with the aim of establishing the type of internal parasites in catfish (Claris gariepinus) as well as the infection intensity. Ten catfish {Clarius gariepinus) specimens collected from the Gaborone ... -
Factors affecting calving percentage in the four different ranching systems practiced by livestock farmers in the southern region of Botswana
(Botswana University of Agriculture & Natural Resources, 2008)Productivity in the livestock industry in Botswana can only prosper, be viable, competitive and remain a major source of income and employment opportunity in the rural areas, if there is an increase in calving percentage ...