Browsing Theses and Dissertations by Title
Now showing items 21-40 of 133
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Comparison of genetic and immunological responses to tick infestation between three breeds of sheep in South Africa
(University of the Free State, 2016-01)The study investigated genetic parameters and immunological responses to tick infestation in three South African sheep breeds (Namaqua Afrikaner [NA], Dorper and SA Mutton Merino [SAMM]). The study aimed to estimate genetic ... -
Current state and updating of heat and moisture production of poultry and their housing systems
(Iowa State University, 2002)An extensive literature review and comparative analysis of heat and moisture production (HP, MP) of various poultry types (layers, broilers, and turkeys) and their housing systems indicated that total heat production (THP, ... -
Design and development of a borehole pumping and water level monitoring control system in Botswana
(Botswana University of Agriculture & Natural Resources, 2017-11-07)Botswana experiences recurrent droughts and has limited surface water resources with the average annual rainfall varying from a minimum of less than 250 mm in the Southwest region and a maximum of about 650 mm in the ... -
The design and use of agroforestry systems in Botswana
(University of Edinburgh, 1996)Botswana is a semi-arid country which has 80% of the population living in rural areas and engaged mainly in agriculture. Rural populations in Botswana depend heavily on woodlands for fuelwood, fencing poles, building and ... -
Determinants of herd productvity in Botswana: a focus on land tenure and land policy
(University of KwaZulu-Natal, 2006-02)This study attempts to identify factors responsible for determining differences in the productivity of cattle managed by communal and private livestock farmers in the southern region of Botswana during 1999/2000. It is ... -
The dynamics of hydraulic lift in peach tree water relations
(West Virginia University, 1995) -
Effect of compost amendments on soil physicochemical properties, plant growth and efficient use of water, nitrogen and phosphorus in maize (zea mays l).
(Botswana University of Agriculture & Natural Resources, 2023-05)Compost is used across the world to sustain soil fertility and crop yield. This investigation consists of two experiments, which were conducted at BUAN greenhouses and farmers field in the Central District of Botswana in ... -
Effect of lactation stage, parity and supplementary feeding with buffelgrass (Cenchrus ciliaris) and old man saltbush (Atriplex nummularia L.) on yield, composition, and microbial properties of camel milk produced in Tsabong
(Buan, 2024-08)The study involved two experiments. The first experiment of the study evaluated the effects of lactation stages (LS) and parity (PA) on the composition and properties of camel milk from 24 dromedary camels reared in Tsabong ... -
Effect of leaf bud removal and partial leaf harvesting on growth, development and yield of cowpeas (Vigna unguiculata [L.] Walp.)
(Botswana University of Agriculture & Natural Resources, 2017-05)Cowpea (Vigna unguiculta [L.] Walp.) originates in tropical Africa. Most producers engage in “dual purpose” cowpea production, where sequential harvests of leaves arc made, followed by seed harvest at the end of the ... -
Effect of nitrogen fertilizer and planting density on the growth and yield of intercropped sorghum and cowpea under rainfed conditions
(Botswana University of Agriculture & Natural Resources, 2017-11)Cereal-legume intercropping can be an alternative for smallholder farmers to mitigate the effects of climate change and to promote sustainable agricultural production. A field experiment was conducted at BUAN gardens during ... -
The effect of nitrogen on the yield and quality of vegetable amaranth
(Botswana University of Agriculture & Natural Resources, 1999-02)The effect of nitrogen on the yield and quality of three species of vegetable amaranth, namely; Amannthus hypochondriacus, A.tricolar, and A.hyridus was studied under field conditions for three different planting times ... -
Effect of phosphorus on the growth yield and nutrient uptake of intercropped maize( Zea mays (L.) and cowpea (Vigna unguiculata (L.) walp)
(Botswana University of Agriculture & Natural Resources, 2016-06)In addition to low soil moisture and its holding capacity, constraints to arable agricultural production in Botswana include low levels of nutrients, especially phosphorus. The objectives of the study were to determine ... -
Effect of planting date, plant population and varieties on key resource use efficiency of sorghum (Sorghum bicolor L. Moench)
(Botswana University of Agriculture & Natural Resources, 2018-05)Inappropriate selection of planting date, plant population and varieties choice have a negative impact on the efficient use of resources and yield returns resulting in some challenges that affect crop production. The ... -
Effect of soil water deficit on water use efficiency of cowpea (Vigna unguiculata L. Walp)
(Botswana University of Agriculture & Natural Resources, 2016-09)There is a global concern over the capacity to feed a rapidly growing world population against a background of climate change which challenges productivity of major crops such as cowpea and their ability to ensure food ... -
Effect of ssupplementing ccowpea (Vigna ungulculata (L.) Walp) seed hulls and Commercial concentrate on productivity of weanling Boer goats grazing during the dry season at Mantshwabisl Government ranch in Kweneng District, Botswana
(Botswana University of Agriculture & Natural Resources, 2014-10)The study was carried out during the dry season between June and August of 2013 to evaluate chemical composition, in vitro dry matter digestibility (IVDMD), feed intake and performance by weanling Boer goats supplemented ... -
Effect of weaning age and sex on bone development and meat quality traits of pigs raised under intensive system and slaughtered at 70 kg body weight
(Botswana University of Agriculture & Natural Resources, 2014-06)Two studies were carried out to determine the effects of weaning age and sex on bone development and meat quality of pigs raised under intensive system. slaughtered at 70 kg body weight. A total of 24 piglets (12 males and ... -
Effects of a computer aided instructional method on pupils' performance in agriculture: A Quasi experimental study
(2014-08)The purpose of this study was to experimentally test the effectiveness of computer aided instructional methods (CAI) facilitated through the use of CD-ROM in teaching Agriculture subject contents to Kgafela Primary School ... -
The effects of drought on plant response in Northern Chehuahuan Desert rangelands
(New Mexico State University, 2001-08)Short term grazing trials were started in June 1992 and continued until 2000; The pastures were grazed in June and September each year except 1996, 1999 and 2000 because of drought. The trials were conducted at New Mexico ... -
Effects of irrigation regime on the growth of three warm season turfgrasses in southern, Botswana
(Botswana University of Agriculture & Natural Resources, 2022-01)Botswana is known for its unreliable rainfall, extended dry spells and heat. The combination of these factors puts great demand on water conservation strategies in turfgrass management. These strategies dictate that ... -
Effects of irrigation water type and nitrogen on growth, yield and nutrient partitioning of tomato. (Lycopersicon lycopersicum (L.) Karstern
(Botswana University of Agriculture & Natural Resources, 2014-09)A field experiment was conducted at the Botswana College of Agriculture (BCA) to evaluate the effects of irrigation water type and nitrogen on growth, yield and nutrient partitioning of tomato (Lycopersicon lycopersicum ...
