88 results match your criteria: "Botswana University of Agriculture and Natural Resources[Affiliation]"

Approximately 20 million cases and 0.15 million human fatalities worldwide each year are caused by Salmonellosis. A mechanistic compartmental model based on ordinary differential equations is proposed to evaluate the effects of temperature and pH on the transmission dynamics of Salmonellosis.

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Fish handling and postharvest losses around the Fincha'a, Amarti, and Nashe reservoirs in Oromiya, Ethiopia.

Sci Rep

December 2024

Department of Postharvest Management, College of Agriculture and Veterinary Medicine, Jimma University, Jimma, Ethiopia.

This study assessed the factors contributing to postharvest loss of fish around the Fincha'a, Amarti, and Nashe reservoirs in Horro Guduru Wollega, Oromia, Western Ethiopia, using semi-structured questionnaires from January, 2022 GC onward. The aim of the finding was to know the fish handling and post-harvest preservation of fish around the reservoirs. In the study area, 320 respondents were selected using a random sampling system.

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Preliminary outcomes on phenotypic and genetic parameter estimates for body weight of indigenous Tswana goats in Botswana.

Trop Anim Health Prod

October 2024

Faculty of Animal and Veterinary Sciences, Department Animal Sciences, Botswana University of Agriculture and Natural Resources, Private Bag 0027, Gaborone, Botswana.

Article Synopsis
  • - The study analyzed growth traits in 585 indigenous Tswana goats over a three-year period, focusing on various weights and average daily gains, using statistical models to determine non-genetic effects and heritability.
  • - Key findings included average weights for birth, weaning, and yearling stages, with heritability estimates indicating strong potential for genetic improvement in these traits.
  • - Results showed positive genetic trends for growth, suggesting that selective breeding could enhance growth performance in the Tswana goat population.
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The present review assessed the effect of heat processing on red peppers' ( L bioactive compounds and antioxidant capacity. The Google Scholar and Scopus databases were used to search the existing literature. Out of 422 articles accessed based on the inclusion and exclusion criterias included, only 15 studies were qualified for detailed review.

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Major overlap in plant and soil organic carbon hotspots across Africa.

Sci Total Environ

November 2024

Department of Geosciences, Chair of Soil Science and Geomorphology, University of Tübingen, Rümelinstr. 19-23, Tübingen, Germany; DFG Cluster of Excellence "Machine Learning: New Perspectives for Science", University of Tübingen, AI Research Building, Maria-von-Linden-Str. 6, 72076 Tübingen, Germany; CRC 1070 Resource Cultures, University of Tübingen, Tübingen, Germany.

Terrestrial plant and soil organic carbon stocks are critical for regulating climate change, enhancing soil fertility, and supporting biodiversity. While a global-scale decoupling between plant and soil organic carbon has been documented, the hotspots and interconnections between these two carbon compartments across Africa, the second-largest continent on the planet, have been significantly overlooked. Here, we have compiled over 10,000 existing soil organic carbon observations to generate a high-resolution map, illustrating the distribution pattern of soil organic carbon in Africa.

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Analyses of LULC dynamics in a socio-ecological system of the Bale Mountains Eco Region of Southeast Ethiopia.

Environ Monit Assess

June 2024

Department of Environment and Development, College of Development Studies, Addis Ababa University, Addis Ababa, Ethiopia.

Analysis of land use and land cover (LULC) change and its drivers and impacts in the biodiversity hotspot of Bale Mountain's socio-ecological system is crucial for formulating plausible policies and strategies that can enhance sustainable development. The study aimed to analyze spatio-temporal LULC changes and their trends, extents, drives, and impacts over the last 48 years in the Bale Mountain social-ecological system. Landsat imagery data from the years 1973, 1986, 1996, 2014, and 2021 together with qualitative data were used.

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The intensity and frequency of climate extremes such as heat waves, droughts and extreme rainfall events are projected to rise. This will increase the severity of their impacts across socio-ecological systems. Economic sectors such as nature-based tourism become more vulnerable because of their reliance on climate and natural capital as key resources.

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Background: Institutions can play a key role in coordinating how natural resources are effectively managed and used without over-exploitation. Institutions are laws, policies, and organizational arrangements that permit, forbid or regulate human action. This study aimed to look into the roles of formal and informal institutions, and their interactions in water resources governance in the Central Rift Valley (CRV), Ethiopia.

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Efficiency is generally defined as the capacity to deliver desirable results with little effort or input. A bank cannot afford to allocate limited resources at random in a competitive market. Only once the efficiency factors have been identified can resources be allocated in a conscious and effective manner.

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Deoxynivalenol (DON) is a common mycotoxin that induces intestinal inflammation and oxidative damage in humans and animals. Given that lithocholic acid (LCA) has been suggested to inhibit intestinal inflammation, we aimed to investigate the protective effects of LCA on DON-exposed porcine intestinal epithelial IPI-2I cells and the underlying mechanisms. Indeed, LCA rescued DON-induced cell death in IPI-2I cells and reduced DON-stimulated inflammatory cytokine levels and oxidative stress.

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Pig production is one of the viable enterprises of the livestock sub-sector of agriculture. It contributes significantly to the economy and animal protein supply to enhance food security in Africa and globally. This article explored the present status of pig production in Africa, the challenges, prospects and potentials.

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Background: In Zimbabwe, anthrax is endemic with outbreaks being reported almost annually in livestock, wildlife, and humans over the past 40 years. Accurate modelling of its spatial distribution is key in formulating effective control strategies. In this study, an Ensemble Species Distribution Model was used to model the current and future distribution of anthrax occurrence in Zimbabwe.

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in Zimbabwe: spatio-temporal distribution and environmental drivers.

Vet Q

December 2024

Department of Geography Geospatial Sciences and Earth Observation, Faculty of Science, University of Zimbabwe, Harare, Zimbabwe.

Understanding the spatial and temporal distribution of is crucial for identifying areas of high prevalence for targeted disease control. This research was aimed at modelling and mapping the potential distribution, and identify hotspots as well as significant variables explaining the occurrence of the disease. The Getis Ord G* statistic for Hotspot analysis was used as well as MaxEnt ecological niche modelling.

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Genetic parameters for daily predicted gross feed efficiency (pGFE) and energy corrected milk (ECM) in the first three parities of South African Holstein cattle were estimated by repeatability animal models. Data comprised of 11,068 test-day milk production records of 1,575 Holstein cows that calved between 2009 and 2019. Heritability estimates for pGFE were 0.

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This study aimed to analyze the influence of supervised 12-week walking (W) and Nordic-walking (NW) programs on changes in specific physiological parameters in middle-aged women 55.40±7.87 and 52.

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Papaya ( L.) is a highly nutritious and less-caloric fruit, commonly consumed for its minerals and vitamins and hence may help in controlling obesity and abdominal discomforts. The present study investigated the hypolipidaemic effects of papaya juice extract on male Albino Wistar rats (7 weeks old; 185 ± 17 g) fed on a high fat and fructose diet (HFFD) for 6 weeks.

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Livestock phenomics and genetic evaluation approaches in Africa: current state and future perspectives.

Front Genet

June 2023

Centre for Tropical Livestock Genetics and Health (CTLGH), Roslin Institute, University of Edinburgh, Easter Bush Campus, Roslin, United Kingdom.

The African livestock sector plays a key role in improving the livelihoods of people through the supply of food, improved nutrition and consequently health. However, its impact on the economy of the people and contribution to national GDP is highly variable and generally below its potential. This study was conducted to assess the current state of livestock phenomics and genetic evaluation methods being used across the continent, the main challenges, and to demonstrate the effects of various genetic models on the accuracy and rate of genetic gain that could be achieved.

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A trial evaluated growth performance, carcass characteristics, meat quality, and economic returns of fattened lambs fed on diets containing different protein sources. Six castrated male Tswana lambs per treatment were used in a completely randomised design (CRD) trial and fed on complete diets containing Lucerne (CD; commercial diet), morula kernel cake (MKC), or sunflower seedcake (SC) as protein sources over a 103-day experiment. No significant differences ( > 0.

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Elephants frequently raid crops within their ranges in Africa and Asia. These raids can greatly impact agricultural productivity and food security for farmers. Therefore, there is a need to explore cost-effective measures that would reduce the susceptibility of crops and agricultural fields to elephant raiding, and further promote sustainable human-elephant coexistence.

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Climate change has escalated the effect of drought on crop production as it has negatively altered the environmental condition. Wild watermelon grows abundantly in the Kgalagadi desert even though the environment is characterized by minimal rainfall, high temperatures and intense sunshine during growing season. This area is also characterized by sandy soils with low water holding capacity, thus bringing about drought stress.

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Tanniferous browse leaves are reported to inhibit methanogens and protozoa activity in the rumen, thus contributing to a reduction of methane emission. This study evaluated the influence of feeding dried browse leaves to sheep on rumen ammonia concentration, the base pair at which protozoa and methanogens were amplified and double stranded DNA concentration (dsDNA) from rumen fluid and faeces. The eight treatments were urea treated rice straw, Albizzia lebbek (AL), Moringa oleifera (MO), Millettia thonningii (MT), AL + MO, AL + MT, AL + MO + MT and MO + MT.

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Besides direct water abstraction, natural water scarcity in semi-arid and arid regions may be further exacerbated by human-assisted changes in vegetation composition, including the invasion by non-native plant species. Water abstraction by the invasive tree Prosopis juliflora and by the native Senegalia senegal was compared in the dry Great Rift Valley, Ethiopia. Transpiration rates were quantified using the heat ratio method on six trees each of P.

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A three-year study investigated the epidemiology of epizootic ulcerative syndrome (EUS) in fish from Kavango-Zambezi (KAZA) and Great Limpopo (GL) transfrontier conservation areas of Zimbabwe. A total of 38 sites comprising 27 wild fisheries and 11 aquacultures, from Mashonaland West, Matabeleland North and South, and Midlands were selected. Of the 27 wild fisheries, EUS-positive fish were detected from 9 (33.

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The purpose of this study was to evaluate changes in health-related parameters caused by the administration of anabolic-androgenic steroids and "fat-burning drugs" during a 6-month competition preparation period. The physiological, biochemical, and anthropometric parameters studied included serum cholesterol, triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, aspartate aminotransferase, alanine transaminase, bilirubin, body mass, and percentage of total body fat. Changes in the parameters studied were analyzed at monthly intervals during six months of preparation for competition.

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