Browsing Reseach articles by Title
Now showing items 14-33 of 59
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Drought and grazing influence on Northern Chihuahuan desert rangelands, New Mexico.
(Botswana University of Agriculture and Natural resources, 2013)A short term cattle grazing trial was started in June 1992 in the Chihuahuan Desert in Southern New Mexico to study the influence of drought and grazing on plant responses. Paddocks were grazed in June and September each ... -
Dynamical and optimal control analysis of a seasonal Trypanosoma brucei rhodesiense model.
(AIMS Press, 2020-02-27)The effects of seasonal variations on the epidemiology of Trypanosoma brucei rhodesiense disease is well documented. In particular, seasonal variations alter vector development rates and behaviour, thereby influencing the ... -
Dynamics for a non-autonomous fall armyworm-maize interaction model with a saturation functional response
(AIMS Press, 2021-11-09)In this study, we present a non-autonomous model with a Holling type II functional response, to study the complex dynamics for fall armyworm-maize biomass interacting in a periodic environment. Understanding how seasonal ... -
The effect of purified condensed tannins of forage plants from Botswana on the free-living stages of gastrointestinal nematode parasites of livestock.
(Elsevier, 2013-10-18)The effect of condensed tannins (CT) extracted from forage plants from Botswana on the free-living stages of a number of species of gastrointestinal nematode parasites derived from infected sheep were investigated using ... -
Effects of Broiler Breeders’ Age on Egg Quality Characteristics and Their Correlation Coefficients.
(Scienceline Publishers, 2021-09-25)The current study was designed to assess the effect of Ross breeder hens’ age on the egg qualities and their correlations. The external and internal qualities of eggs were compared, and their correlation coefficients as ... -
Effects of chemical preservatives and water quality on postharvest keeping quality of cut Lisianthus (Eustoma grandiflorum L)
(Botswana University of Agriculture and Natural resources, 2013)This study was carried out to investigate effects of various chemicals added to vase solutions and also effects of water quality on the post-harvest physiology of Lisianthus (Eustoma grandiflorum L.) cut stems. The vase ... -
The effects of vaccination and treatment on the spread of HIV/AIDS
(World Scientific Publishing, 2004)This study investigates the effects of vaccination and treatment on the spread of HIV/AIDS. The objectives are (i) to derive conditions for the success of vaccination and treatment programs and (ii) to derive threshold ... -
Enteric methane emission factors of smallholder dairy farming systems across intensification gradients in the central highlands of Ethiopia.
(BioMed Central Ltd, 2023-11-29)Background: Following global pledges to reduce greenhouse gas (GHG) emissions by 30% by 2030 compared to the baseline level of 2020, improved quantification of GHG emissions from developing countries has become crucial. ... -
The estimation of live weight based on linear traits in indigenous Tswana goats at various ages in Botswana.
(Springer Link, 2011-10-02)The objective of this study was to determine the usefulness of some linear body measurements in predicting live weight in indigenous Tswana goats at various ages. Data for this study were obtained from 2,783 goats sampled ... -
Ethnozoological Survey of the Indigenous Knowledge on the Use of Pangolins (Manis Sps) in Traditional Medicine in Lentsweletau Extended Area in Botswana.
(Researchgate, 2014-06-30)Animals have played an important role in human life from prehistory. Many animals are used in zootherapy worldwide. However, the zootherapeutic practices by some communities are not well documented and may be forgotten. ... -
Evaluation of carcass, organ and organoleptic properties of spent layers of different poultry types.
(Botswana University of Agriculture and Natural resources, 2013)This study was designed to assess carcass, organ and organoleptic properties of spent layers of different poultry species; comprising of geese, local chicken, commercial chicken and quails. Eight (8) birds of each species ... -
Evaluation of three breeding cycles for seedling weight of switchgrass, big bluestem, and indiangrass.
(Crop Science Society of America, 2014-07-01)A modified form of restricted, recurrent phenotypic selection was used to select for seedling shoot weight in switchgrass (Panicum virgatum L.), big bluestem (Andropogon gerardii Vitman), and indiangrass [Sorghastrum nutans ... -
Evaluation of two Non-Edible, Wild Indigenous Botswana Crops (Croton megalobotrys (Motsebi/Letsebi/Moshoole) and Ricinus communis (Mokhure)) as Potential Feedstocks for Petroleum and Cosmetic Industries
(EAST AFRICAN NATURE & SCIENCE ORGANIZATION, 2021-12-07)Croton megalobotrys and Ricinus cummunis plants produce high-quality nonedible seed oils at relatively high quantities of 39.65 ± 0.06 % w/w to 53.74 ± 0.04 % w/w. The Iodine values of 85.97 ± 1.62 g I2/100 g to 96.51 ± ... -
Factors influencing ambient concentrations of 210Pb and 7Be over the city of Edinburgh (55.9°N, 03.2°W)
(Elsevier, 2006)Concentrations of 210Pb and 7Be in air were continuously monitored, using a high-volume air sampler and a high-resolution gamma-ray spectrometer, during the period of July 2002 to June 2003 at the University of Edinburgh ... -
A fractional-order fall armyworm-maize biomass model with naturally beneficial insects and optimal farming awareness.
(Elsevier, 2021-11-01)Maize remains an important food crop in Africa. However, the production of this crop, and consequently the livelihood of the growers are threatened by the invasion and widespread infestation of the fall armyworm which ... -
A fractional-order Trypanosoma brucei rhodesiense model with vector saturation and temperature dependent parameters.
(Springer Open, 2020-06-11)Temperature is one of the integral environmental drivers that strongly affect the distribution and density of tsetse fly population. Precisely, ectotherm performance measures, such as development rate, survival probability ... -
Fuzzy Modeling for the Dynamics of Alcohol-Related Health Risks with Changing Behaviors via Cultural Beliefs.
(HINDAWI, 2020-07-13)In this paper, we propose and analyze a fuzzy model for the health risk challenges associated with alcoholism. The fuzziness gets into the system by assuming uncertainty condition in the measure of influence of the risky ... -
Gross and microanatomical changes at the weight bearing points of ostrich induced by soil or concrete floor and implications for welfare.
(Botswana University of Agriculture and Natural resources, 2013)This study investigated the gross and microanatomical changes occurring at the weight bearing points on the ostrich body surface induced by rearing on soil floor or on concrete floor and the implications for the welfare ... -
Health risk assessment of heavy metals via dietary intake of vegetables irrigated with treated wastewater around Gaborone, Botswana
(International Conference on Plant, Marine and Environmental Sciences, 2015-01)Heavy metal concentrations of Cd, Cr, Cu, Ni, Pb and Zn in green peppers (Capsicum annuum) and tomatoes (Solanum lycopersicum) irrigated with treated wastewater from the Glen Valley farms were determined. Concentrations ... -
Herbaceous communities’ heterogeneity in the Kalahari sandy soils environment: A case study of Kweneng, Kgatleng Districts and Mahalapye Sub-District of Botswana
(International Network for Natural Sciences, 2021-06-30)Biotic and abiotic factors shape most vegetation communities’ structures and composition. Over the years, climatic conditions have been changing. Livestock and wild animal populations have also been dynamic in Botswana’s ...