Theses and Dissertations: Recent submissions
Now showing items 121-137 of 137
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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 ... -
Physiological responses and meat quality of Potchefstroom koekoek cockerels offered canola meal as an alternative to soybean meal
(North-West University, 2018-05)The current study was conducted to assess growth performance, protein utilisation efficiency, blood parameters, meat quality, bone breaking strength, density and mineral composition of Potchefstroom Koekoek (PK) cockerels ... -
Biology and Ecology of Glyphosate-Resistant Giant Ragweed
(Purdue University, 2013)Giant ragweed (Ambrosia trifida L.) is a competitive annual plant found in disturbed landscapes and is the most troublesome weed in Indiana and the US Corn Belt. It is one of the most common and problematic weeds in corn ... -
Pearl millet : influence of mineral biofortification and simple processing technologies on minerals and antinutrients
(University of Pretoria, 2016)Pearl millet is an important staple food in rural Africa. However, the mineral bioavailability of pearl millet is low due to its high content of antinutrients, particularly phytate. This research investigated the effects ... -
Genetic characterization of tswana and tuli cattle kept at Botswana University of Agriculture and Natural Resources using microsatellite markers
(Botswana University of Agriculture and Natural Resources, 2020-10)Twelve FAO-lSAG-rccommended microsatellite markers were used to analyse genetic variation in Tswana and Tuli cattle breeds. All loci were polymorphic and a total of 75 and 77 alleles were genotyped in the Tswana and Tuli ... -
Identification of mongongo (schinziophyton rautanenii) and morama (tylosema esculentum) insect pests and their natural enemies in Botswana.
(Botswana University of Agriculture and Natural Resources, 2020-10)The study was conducted at the Botswana University of Agriculture and Natural Resources (BUAN) Sebele, Gaborone. Sampling sites for this study was done in Kweneng district and Okavango district, and the experiments were ... -
Comparative growth performance and semen characteristics of indigenous naked neck tswana and black australorp x naked neck tswana chickens under an intensive management system in Botswana.
(Botswana University of Agriculture and Natural Resources, 2020-10)This study investigated growth performance and semen characteristics of naked neck Tswana and black Australorp X naked neck Tswana chickens. The birds were raised under intensive management system from day old to 20 weeks ... -
Comparative assessment of the effects of horse manure and urea as nitrogen sources on seed yield, forage production and nutritional quality of Cenchrus ciliaris post seed harvesting.
(Botswana University of Agriculture and Natural Resources, 2020)The objective of this research was to evaluate the comparative effects of horse manure and urea, as sources of nitrogen, on seed and biomass yields of Cenchrus ciliaris and the nutritional quality of its forage residues ... -
Evaluation of cropping strategies for mitigating elephant crop raiding in communities along the eastern Okavango Panhandle of Botswana
(Botswana University of Agriculture and Natural Resources, 2020-03)There is an increased call for elephant protection and conservation due to the anthropogenically driven decline in elephant numbers globally. However, due to protection by Government legislation in Botswana, elephant ... -
Value-addition of cereal crop residues using low technology oyster mushroom (pleurotus spp.) production to improve small-scale farmers’ income and nutrition in Botswana
(Botswana University of Agriculture and Natural Resources, 2019-08)The average cereal grain yields for Botswana small-scale farmers is 108kg/ha with gross income of P233.95/ha, respectively. The low yields are due to frequent droughts and pest outbreaks resulting in food and nutrition ... -
Seed germination of morama bean (tylosema esculentum (burch) a. schreib) from different collection sites in Botswana
(Botswana University of Agriculture and Natural Resources, 2020-07)Understanding the seed biology and germination ecology of plants is critical for bringing them into cultivation, yet this information is insufficient for Tylosema esculentum despite its potential as a future crop. T. ... -
Storage temperature and atmosphere influenced postharvest quality of marula (sclerocarya birrea subspecies caffra) fruits
(BUAN, 2020-07)Low temperature storage is the most effective technology for maintaining quality and extending the postharvest life of fresh horticultural produce. However, horticultural produce of tropical and subtropical in origin are ... -
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, ... -
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 ... -
Effects of site preparation for afforestation on soil properties and greenhouse gas emission
(The University of Edinburgh, 2009)Forest plantations in the UK are often established on seasonally waterlogged peaty gley soils which often require site preparation (drainage and mounding) to lower the water table and prepare planting positions. Substantial ... -
Evaluation of Stover management practices or ameliorative strategies on the utilization of tanniferous feeds by ruminants
(The University of Guelph, 1999-08)Seven experiments which hcluded one fieIdlagronomy, four in vitro and two in vivo triais were carrieci out to (i) determine the optimum time of harvesbng and storage methods that preserved the nutritive quality of make and ... -
The Influence of topography and vegetation canopy on the deposition of atmospheric particulates Studied with 210Pb and 137Cs soil inventory measurements
(University of Edinburgh, 2003)Naturally occurring radioactive isotopes of 210Pb and 7Be in the atmosphere, plant material and soil have been used to investigate the transport and removal of atmospheric aerosols from the atmosphere by precipitation and ...
