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Genetic Divergence and Selection of Genitors Aiming to Generate Variability in Common Bean Lines 普通豆系变异的遗传分化与遗传选择
Pub Date : 2022-10-27 DOI: 10.37284/eajab.5.1.912
José Eulário Lampi Dique, César Pedro, Custódio Jorge José Fernando, M. Quinhentos, Ivan de Paiva Barbosa, Leonel Tarcísio da Cristina Bungala, D. Dias, António Arlindo Mendes, J. Carneiro
The objective of this work was to evaluate the genetic divergence between common bean strains from the breeding program of the Agricultural Research Institute of Mozambique (IIAM)-Zonal Centre (CZC) and to identify potential genitors to generate segregating populations with high average and wide genetic variability. Five common bean lines were evaluated in a randomized block design with three repetitions. The quantitative traits evaluated were leaf area index, days to 50% flowering, days to maturity, several pods per plant, 100 seed weight, and yield, while the qualitative traits were growth habit, epicotyl colour, leaf colour intensity, leaf roughness, fresh pod colour, grain colour, grain size, and flower colour. The data obtained were submitted to variance analysis and grouping of means by the Scott-Knott test. The relative importance of characters was evaluated by the Singh. Clustering was performed by the Tocher optimization method and distance projection in the 2D plane, using the generalized Mahalanobis distance as a measure of dissimilarity. The degree of preservation of genetic distances in the 2D plane was assessed by the Cohenetic Correlation Coefficient, distortion, and stress. The LPA54 and Bonus lines were highlighted by direct selection based on the performance per se of their characteristics. Genetic variability was checked for the trait’s days to 50% flowering several of pods per plant, and 100-seed weight and the strains were separated into two groups. The crosses between (G19833, LPA54, Manteiga, and Bonus) with the strain DOR364 there is the potential for obtaining hybrids with higher heterotic effect and segregating populations with high variability. The traits of 100-seed weight, pods per plant, epicotyl colour, and grain size were the most important in the discrimination of the strains
本研究的目的是评估来自莫桑比克农业研究所(IIAM)区域中心(CZC)育种计划的普通豆品系之间的遗传差异,并确定潜在的遗传源,以产生具有高平均遗传变异和广泛遗传变异的分离群体。采用随机区组设计,对5个普通豆系进行评价,重复3次。定量性状为叶面积指数、开花天数至50%、成熟天数、单株荚果数、百粒重和产量,定性性状为生长习性、上胚轴颜色、叶颜色强度、叶粗糙度、鲜荚颜色、籽粒颜色、籽粒大小和花色。所得数据经Scott-Knott检验进行方差分析和均数分组。字符的相对重要性是由辛格评价的。采用Tocher优化方法和二维平面上的距离投影进行聚类,以广义马氏距离作为不相似度的度量。通过内聚相关系数、畸变和应力来评估遗传距离在二维平面上的保存程度。LPA54和奖金线是根据其特性本身的性能直接选择的。研究人员检查了该性状的遗传变异,包括开花天数到50%,每株开花数荚,100粒种子重量和菌株分为两组。G19833、LPA54、Manteiga和Bonus与DOR364的杂交有获得高杂种效应和高变异群体的潜力。百粒重、单株荚果数、上胚轴颜色和籽粒大小是菌株鉴别的重要性状
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引用次数: 0
Stress Tolerance of African Catfish (Clarias gariepinus, Burchell, 1822) Larvae Fed on Spirulina platensis or Eisenia fetida in Partial Replacement of Caridina nilotica in Formulated Diets 非洲鲶鱼(Clarias gariepinus, Burchell, 1822)幼虫在配方饲料中部分替代Caridina nilotica时对platulina或Eisenia fetida的耐受性
Pub Date : 2022-09-19 DOI: 10.37284/eajab.5.1.845
Callen Nyang'ate Onura, A. Muthumbi, J. James, V. Wang'ondu
Enhanced growth and survival indicate a quality diet important in the production of quality fish larvae. Diet’s quality heavily depends on the quality of its protein which varies with inclusion levels and sources. This Influences stress responses and compromises wellbeing larvae due to diets suboptimal provision of nutritional requirements. However, there exists a knowledge gap on the performance of different proteins beyond growth and survival. The objective of this study was to determine the effects of partially replacing Caridina nilotica with Spirulina platensis or Eisenia fetida on stress tolerance of Clarias gariepinus larvae. This was conducted in 0.0, 0.3, 0.5, 0.7mg/l ammonia concentrations at 28°C and pH 7 within 24-hours using four- and six-weeks old larvae. The larvae were fed on formulated diets and a control at 10% body weight, five times a day. All larvae exposed to 0.7mg/l ammonia concentration died irrespective of the diet fed. A combination of 50%Caridina nilotica and 50%Eisenia fetida fed larvae posted low (p<0.001) total mortality of 78% and 52% in 0.5mg/l, stress indices of 457.3 and 342 and, took the longest time of 12.67 and 18.67-hours for half the number of larvae exposed to die in 0.7mg/l ammonia respectively for four- and six-week-old larvae. However, larvae fed on 50%Spirulina platensis and 50%Caridina nilotica posted higher (p<0.001) total mortality of 97% and 73% in 0.5mg/l, stress indices of 574.3 and 476.3 and, shortest time of 8 and 10.17-hours for half the number of 4- and 6-weeks old (respectively) larvae exposed to 0.7mg/l ammonia to die. Protein source influenced stress tolerance with Eisenia fetida diets enhancing better larvae tolerance to ammonia compared to Spirulina platensis and Caridina nilotica (control) diets. Caridina nilotica could be replaced by Eisenia fetida up to 50% and 25% by Spirulina platensis to enhance Clarias gariepinus larvae tolerance to ammonia stress.
生长和存活率的提高表明优质饲料对生产优质鱼类幼虫很重要。饮食的质量在很大程度上取决于蛋白质的质量,而蛋白质的质量因蛋白质含量和来源而异。这影响应激反应,并损害健康的幼虫,由于饮食不理想的营养需求提供。然而,除了生长和存活之外,对不同蛋白质的性能还存在知识差距。本研究的目的是研究用平螺旋藻或肥爱Eisenia fetida部分替代Caridina nilotica对Clarias gariepinus幼虫抗逆性的影响。在28℃、pH为7、氨浓度为0.0、0.3、0.5、0.7mg/l、24小时内对4、6周龄幼虫进行试验。分别饲喂10%体重的配制饲料和对照饲料,每天5次。当氨浓度为0.7mg/l时,50%尼洛卡依螨(caridina nilotica)和50%肥爱森虫(eisenia fetida)的总死亡率较低(p<0.001), 0.5mg/l时死亡率分别为78%和52%,应激指数分别为457.3和342,4周龄和6周龄幼虫的死亡时间分别为12.67和18.67 h,为0.7mg/l时死亡数量的一半。而在0.5mg/l浓度下,50%的螺旋藻和50%的卡洛依纳(caridina nilotica)的总死亡率分别为97%和73% (p<0.001),应激指数分别为574.3和476.3,最短死亡时间分别为8和10.17 h,为0.7mg/l浓度下4周龄和6周龄幼虫死亡时间的一半。蛋白质源影响肥Eisenia fetida日粮的胁迫耐受性,使其对氨的耐受性优于螺旋藻(Spirulina platensis)和Caridina nilotica(对照)日粮。可分别用50%和25%的肥美Eisenia和螺旋藻代替Caridina nilotica,以提高Clarias gariepinus幼虫对氨胁迫的耐受性。
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引用次数: 0
Effects of Training Small-Scale Farmers on Food Security in Moiben Sub County in Uasin Gishu County 瓦新吉曙县莫本县小农培训对粮食安全的影响
Pub Date : 2022-09-13 DOI: 10.37284/eajab.5.1.837
Margaret Cheruto Yator, P. Ouma, A. Ndiema
Food security revolves around equality in the availability, access, and intake of nutritious food. The main purpose of this research is to determine the effectiveness of the adoption of agricultural technologies by small-scale farmers on food security, with a particular focus on Moiben Subcounty in Uasin Gishu County. The research adopted a mixed-methods design. A sample size of 179 small-scale farmer households was obtained using purposive and simple random sampling. The instruments used for the research were both questionnaires and interview schedules. To assess validity and reliability, the instruments were piloted. The data collected was organised and analysed using frequencies and%ages and then presented with the aid of Statistical Package for Social Sciences (SPSS) version 23.0. The findings of the research will enable better training methods for small-scale farmers to enhance food security in the Moiben Subcounty of Uasin Gishu County, Kenya. The researcher used inferential analysis of the study data to determine the strength of the relationship between the food security variable and the success of the adoption of agricultural technology. The researcher did a correlation analysis and examined the study’s correlation coefficient in detail. Adoption of agricultural technology was significantly and positively connected to food security (r = 0.943; P < 0.05), according to the findings. The correlations were higher than 94.3%, implying that there are large positive relationships between the adoption of agricultural technology and food security. The study findings revealed that an increase in one unit of training small-scale farmers on agricultural techniques decreased food security by 0.146 units. The study will be beneficial to students and other researchers’ intent on the knowledge of small-scale farmer training and its relationship to food security. The adoption of agricultural technologies increased food security by 52.1%. The recommendation of the study was Agricultural technologies will make the work on the farm efficient and will result in more first-grade production of farm produce, improving food security.
粮食安全的核心是营养食品的供应、获取和摄入方面的平等。本研究的主要目的是确定小农采用农业技术对粮食安全的有效性,并特别关注瓦新吉舒县的莫本县。本研究采用混合方法设计。采用有目的、简单随机抽样的方法,对179户小农农户进行调查。研究中使用的工具是问卷调查和访谈时间表。为了评估这些仪器的有效性和可靠性,对它们进行了试验。收集的数据使用频率和%年龄进行组织和分析,然后借助社会科学统计软件包(SPSS) 23.0版本进行呈现。这项研究的结果将为小规模农民提供更好的培训方法,以加强肯尼亚瓦辛吉舒县莫本县的粮食安全。研究人员对研究数据进行了推断分析,以确定粮食安全变量与农业技术采用成功之间的关系强度。研究人员进行了相关分析,并详细检查了研究的相关系数。农业技术采用与粮食安全显著正相关(r = 0.943;P < 0.05)。相关系数高于94.3%,表明农业技术的采用与粮食安全之间存在较大的正相关关系。研究结果显示,每增加一个小农农业技术培训单位,粮食安全就会减少0.146个单位。该研究将有助于学生和其他研究人员了解小农培训及其与粮食安全的关系。农业技术的采用使粮食安全提高了52.1%。该研究的建议是,农业技术将使农场的工作更有效率,并将导致更多的一流农产品生产,改善粮食安全。
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引用次数: 0
Productivity Screening of Common Bean (Phaseolus vulgaris L.) Varieties and Agronomic Trait Eco-Seasonal Morphological and Physiological Characterization 菜豆(Phaseolus vulgaris L.)生产力筛选品种及农艺性状生态季节形态生理特征
Pub Date : 2022-07-12 DOI: 10.37284/eajab.5.1.750
Diana Nthenya Komo, T. Akuja, J. Kimatu
The productivity of beans (Phaseolus vulgaris L) has been found to be influenced by biophysical stresses like ecological variations, genotype, climate, pests, and soil fertility. This has reduced bean productivity by 25% in some cases. Hence, research to improve bean varieties and the consequential assessment of their field performance is necessitated by global climate change scenarios. The eco-matching of genotypes in the midst of emerging issues like climate change and global warming has serious economic and food security implications. This research evaluated genotype, seasonal, ecological, and productivity variations of four bean varieties in three diverse ecological zones at the Mua Hills in Machakos County in Kenya. All the experiments were arranged in a Complete Randomized Block Design (RCBD). The research obtained data on growth (leaf numbers, plant heights, plant maturity times), seed parameters (seed water imbibition, shape, colour) and yield parameters (number of pods, pod weight, 100 seed weight) until harvesting time. Data collected were subjected to Multivariate analysis of variance (ANOVA) at P≤0.05 and means separated using the LSD significant difference test at P≤0.05. The study found that there were significant bean genotype and seasonal and eco-sensitive variation differences at P≤0.05. The economically valuable trait of 100 seed weight correlated positively with other traits in all zones. Therefore, bean varieties are season and eco-sensitive due to genotype, water stress, and current climate change scenarios. Hence, breeding experiments should endeavour to release varieties that have undergone seasonal ecological screening as exacerbated by the need for high productivity
菜豆(Phaseolus vulgaris L)的生产力受到生态变异、基因型、气候、害虫和土壤肥力等生物物理胁迫的影响。在某些情况下,这使豆类产量降低了25%。因此,在全球气候变化情景下,有必要开展豆类品种改良研究,并对其田间表现进行相应的评估。在气候变化和全球变暖等新出现的问题中,基因型的生态匹配具有严重的经济和粮食安全影响。本研究评估了肯尼亚马查科斯县穆阿山3个不同生态区4个豆类品种的基因型、季节、生态和生产力变化。所有实验采用完全随机区组设计(RCBD)。研究获得了收获前的生长数据(叶片数、株高、植株成熟时间)、种子参数(种子吸水性、形状、颜色)和产量参数(荚果数、荚果重、100粒重)。收集的数据进行多变量方差分析(ANOVA), P≤0.05,均数采用LSD显著性差异检验,P≤0.05。研究发现,大豆基因型、季节和生态敏感性差异显著(P≤0.05)。百粒重经济价值性状与各区域其他性状呈显著正相关。因此,由于基因型、水分胁迫和当前的气候变化情景,豆类品种具有季节性和生态敏感性。因此,育种试验应努力释放经过季节性生态筛选的品种,因为需要高生产率而加剧了这种筛选
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引用次数: 0
Fodder Potential Evaluation of Agro-Pastoral Sites Using Spatial Imagery Technology in the Cotton Production Zone of Mali, West Africa 基于空间影像技术的西非马里棉花产区农牧立地饲料潜力评价
Pub Date : 2022-06-20 DOI: 10.37284/eajab.5.1.718
A. Ba, A. Koné, M. Diawara, Harouna Daouda Diarra, S. Traoré
In the cotton production zone of Mali, the pastoral ecosystems dynamics is being observed over the last decades, its impact on animal production and rural household welfare raisin the issue of space management particularly from agriculture practices increase participation in the dynamics of these resources. Additionally, in the zone the livestock feed materials are largely based on the use of natural fodders. However, other resources available for livestock include crop residues and industrial concentrated livestock feeding product for alimentary extra portion. This study aimed to evaluate the forage potential of six sites in the cotton zone of Mali using spatial imagery technology and to establish a forage balance sheet at the scale of these pastoral zone. The chosen approach is about the use of Landsat images acquired via Google Earth. Digital processing of these images by using the color composition technic was performed to establish the land use dynamics from 1990 to 2019. The results showed a sharp decrease in the rangelands area in favor of agricultural practices land use. Between 1990 and 2019, the areas dedicated to rain-fed crops increased by 77, 131, 123 and 110 % respectively in Benguéné, Ziguéna, Nafégué and Kokélé. During the same period, fallow areas decreased by -36% in Ziguéna, -23% in Nafégué and -13% in Kokélé. In Benguéné village which is an old cotton production zone, the situation is the most striking (-42% of fallows areas decrease during the same period). The results confirmed that animals daily feeding needs are not met in the villages of Nafégué, Ziguéna and Benguéné. Moreover, the carrying capacity decreased in all these sites from 1990 to 2019 except Benguéné village where agricultural areas occupied more than 60% of the total area. In that village the carrying capacity is ensured by half.
在马里的棉花生产区,在过去的几十年里,正在观察到畜牧业生态系统的动态变化,它对动物生产和农村家庭福利的影响提出了空间管理问题,特别是来自农业实践的空间管理问题增加了对这些资源动态的参与。此外,该地区的牲畜饲料材料主要以使用天然饲料为基础。然而,牲畜可利用的其他资源包括作物残茬和工业浓缩牲畜饲料产品,用于消化额外部分。本研究旨在利用空间成像技术对马里棉区6个样地的牧草潜力进行评价,并建立牧区尺度的牧草资产负债表。选择的方法是使用通过谷歌地球获得的陆地卫星图像。利用彩色合成技术对这些图像进行数字处理,建立了1990 - 2019年的土地利用动态。结果表明,放牧地面积急剧减少,有利于农业用地的利用。1990年至2019年期间,本古、孜古、纳夫和科科的雨养作物种植面积分别增加了77%、131%、123%和110%。在同一时期,zigusamuna的休耕面积减少了36%,nafsamugu减少了23%,kokkoksamul减少了13%。在bengusamuise村,这是一个古老的棉花产区,情况最为明显(同期休耕面积减少-42%)。结果证实,在纳夫萨伊姆、孜古萨伊姆和本古萨伊姆村,动物的日常喂养需求没有得到满足。此外,从1990年到2019年,所有样地的承载能力都有所下降,但本古萨尼什村的农业面积占总面积的60%以上。在那个村子里,承载能力增加了一半。
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引用次数: 0
Farmers’ Social capital, Sources of Finances, Information and their implications on Maize Yields in a Rural Highland, Kenya 农民社会资本、资金来源、信息及其对肯尼亚农村高地玉米产量的影响
Pub Date : 2022-06-15 DOI: 10.37284/eajab.5.1.709
J. Cheruiyot, Festus Kipkorir Nge’tich
Maize (Zea mays L.) is a crop of livelihood, nutritional, economic, and political importance in Kenya. Its productivity growth is estimated at 2% annually, with average yields of 2 tons/ha against a potential 6 tons/ha. Annual production lags behind demand. This study was conducted in a typically rural location of Nandi County in Kenya to investigate smallholder farmers’ social capital, sources of finances, information, and their implications on maize yields. Data from 502 farmers, collected ex post facto, was analysed by use of descriptive and inferential statistics. Brown-Forsythe ANOVA showed highly significant differences between groups; based on social capital as measured by their membership to social common-interest groups (F* (2,499) = 23.826, P = .000), based on main sources of finances for farm operations (F* (4, 60.649) = 8.519, P = .000) and main sources of technical information (F (3,498) = 38.738, P = .000). A Games-Howell post hoc test showed that the ‘no group’ category had significantly lower yields compared to members of social groups (P = .000). Farmers who mainly financed farm operations through ‘sale of farm produce’ had significantly lower yields compared to ‘non-farm trade’ and ‘salaries from off-farm employment’ categories (P = .001 and .000). The farmer category that relied mainly on ‘mass media’ for information had significantly lower yields (P = .000) compared to those who relied on Extension (P = .000) and ‘digital sources’ (P = .016). The mix of ‘extension and digital sources’ category showed a significantly higher mean compared to ‘Extension only’ (P = .000). In conclusion, farmer organizations and the associated social capital, funding of farm operations and information sources that guarantee quality have a positive impact on maize productivity and food security. This study is of value for practitioners and policy-makers on farmer organizations, seasonal credits, and extension information delivery
玉米(Zea mays L.)在肯尼亚是一种重要的生计、营养、经济和政治作物。其生产力增长估计为每年2%,平均产量为2吨/公顷,潜在产量为6吨/公顷。年产量落后于需求。本研究在肯尼亚南迪县一个典型的农村地区进行,旨在调查小农的社会资本、资金来源、信息及其对玉米产量的影响。事后收集的502名农民的数据,通过使用描述性和推断性统计进行了分析。Brown-Forsythe方差分析显示组间差异极显著;基于社会资本(F* (2,499) = 23.826, P = .000),基于农场经营的主要资金来源(F* (4,60.649) = 8.519, P = .000)和主要技术信息来源(F (3,498) = 38.738, P = .000)。game - howell事后测试显示,与社会群体成员相比,“无群体”类别的收益明显较低(P = 0.000)。与“非农业贸易”和“非农业就业工资”类别相比,主要通过“农产品销售”为农场经营提供资金的农民的产量明显较低(P = 0.001和0.000)。与依赖推广(P = .000)和“数字资源”(P = .016)的农民相比,主要依赖“大众媒体”获取信息的农民类别的产量显著降低(P = .000)。与“仅扩展”相比,“扩展和数字源”类别的混合显示出明显更高的平均值(P = .000)。总之,农民组织和相关的社会资本、农场经营资金以及保证质量的信息来源对玉米生产力和粮食安全具有积极影响。本研究对农民组织、季节性信贷和推广信息传递的从业者和决策者具有一定的参考价值
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引用次数: 0
Resource Utilization Planning and Resilience in Food Security Projects in Kenya 肯尼亚粮食安全项目的资源利用规划和复原力
Pub Date : 2022-06-14 DOI: 10.37284/eajab.5.1.706
G. Ruheni, Lydiah Wambugu
Vision 2030 is Kenya's economic blueprint whose focus is to guide the country in the transformational agenda of achieving a newly industrialized, middle-income country; a country where citizens enjoy high quality life in a clean and secure environment by the year 2030. Appreciating that agriculture is the backbone of the Kenya’s economy, it is critical to inject efficiency in food security projects to guarantee sustainable food security. However, the current food production system is not keen on maintaining value of resources, hence, catalysing soil degradation, deforestation, water depletion, and Green House Gas emissions. Consequently, climate change, food insecurity, slowed economy, unemployment, and poverty. The resultant effect is poor human health, inability to cope with shocks, inequalities, and lack of social services. Nonetheless, factual based policies supporting science, technology, and innovation for efficient and effective resource utilization in food security projects will promote the country’s capacity in achieving resilience in food security. This paper will highlight the concept of resource utilization planning to enhance, resources predictability and value maintenance. The study will employ desk review of relevant documents on: resource utilization and food security and nutrition. The findings are expected to provide policy makers with insight on the policies that are required as a fundamental catalyst, in designing and creating an enabling environment for robust food security projects. In return, the food security projects are bound to minimize on extractive activities, Green House Gas emissions, deforestation, soil degradation and water depletion.
2030年愿景是肯尼亚的经济蓝图,其重点是指导国家实现转型议程,成为一个新兴的工业化中等收入国家;到2030年,使国民在清洁安全的环境中享受高质量的生活。认识到农业是肯尼亚经济的支柱,为粮食安全项目注入效率以确保可持续的粮食安全至关重要。然而,目前的粮食生产系统并不热衷于保持资源的价值,因此,催化了土壤退化、森林砍伐、水资源枯竭和温室气体排放。因此,气候变化、粮食不安全、经济放缓、失业和贫困。由此产生的影响是人类健康状况不佳、无法应对冲击、不平等和缺乏社会服务。尽管如此,基于事实的政策支持科学、技术和创新,以便在粮食安全项目中高效和有效地利用资源,将促进该国实现粮食安全抵御力的能力。本文将重点介绍资源利用规划的概念,以提高资源的可预测性和价值维护。这项研究将采用案头审查关于:资源利用和粮食安全和营养的有关文件。预计这些研究结果将为政策制定者提供见解,使他们了解在设计和创造有利环境以促进强有力的粮食安全项目时,作为根本催化剂所需的政策。作为回报,粮食安全项目必须尽量减少采掘活动、温室气体排放、森林砍伐、土壤退化和水资源枯竭。
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引用次数: 0
Perception and Attitude of Youth on the Use of insects as Food and Feed, Kenya 青年对使用昆虫作为食物和饲料的看法和态度,肯尼亚
Pub Date : 2022-06-02 DOI: 10.37284/eajab.5.1.687
Keineetse Emelda Morris, A. Watako, W. Akuno
There is no doubt about the nutritional value and environmental impact of edible insects; they are a good substitute for source of protein. However, incorporating them in the human daily diets requires an intense change in mentality of youth in Kenya. People’s attitude towards a food product is important when it comes to its acceptance. Therefore, the aim of the research was to explore the perception and attitude of young people in Kenya on the utilization of insects as food and feed. The findings showed that Kenyan youth have a neutral to a possible positive perception and attitude regarding the use of edible insects as food and feed. The findings of a logistic regression analysis show that education level is associated with low likelihood of consuming and using insects as livestock feed. The perceived benefits, feelings and intentions were also associated with low probability of insects consumption and use as livestock feed. However, 79.9% of respondents were willing to incorporate insects in their food diets and 75.6% were willing to use them as a source of income.
食用昆虫的营养价值和环境影响是毋庸置疑的;它们是一种很好的蛋白质替代品。然而,将它们纳入人类日常饮食需要肯尼亚年轻人的心态发生巨大变化。人们对食品的态度对食品的接受程度很重要。因此,研究的目的是探讨肯尼亚年轻人对利用昆虫作为食物和饲料的看法和态度。调查结果表明,肯尼亚青年对使用食用昆虫作为食物和饲料持中立或可能积极的看法和态度。逻辑回归分析的结果表明,受教育程度与食用和使用昆虫作为牲畜饲料的可能性较低有关。感知到的好处、感受和意图也与昆虫消费和用作牲畜饲料的可能性较低有关。然而,79.9%的受访者愿意将昆虫纳入他们的食物饮食中,75.6%的受访者愿意将昆虫作为收入来源。
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引用次数: 0
Agri-Systems as a Bridge between Subsistence Farming and Youth Economic Welfare in Sub Sahara Africa: A Case of Nakuru County Kenya 农业系统作为撒哈拉以南非洲自给农业和青年经济福利之间的桥梁:以肯尼亚纳库鲁县为例
Pub Date : 2022-05-20 DOI: 10.37284/eajab.5.1.675
John Mathenge King’au
Young people represent around one-fifth of the world’s population and half of the total unemployed global workforce are the youth. In Kenya, over half of the total population is youth and a majority of them live in rural areas and are unemployed. Most rural youths engage in self-reliance projects to improve their livelihoods. This paper examines the future of rural youth agri-projects in Sub-Sahara Africa. The article is based on a study conducted to determine the effects of self-reliance projects on the livelihoods of youth in selected rural areas of Nakuru County, Kenya. Thorough surveys of youth self-reliance projects and livelihoods were conducted in Nakuru County, Kenya in 2017 by the author. The study surveyed youth who were actively undertaking self-reliance projects aimed at enhancing their livelihood. The surveys included information on the nature and type of self-reliance projects undertaken, the contribution of self-reliance projects to youth economic welfare and the challenges facing the youth and how they overcome them when undertaking the projects. The overall conclusion of this study and other related studies is that youth agri projects are having a significant contribution to their economic welfare in the rural areas, thus improving their livelihoods and hence bridging the way Agri-systems are being enhanced
青年约占世界人口的五分之一,全球失业劳动力中有一半是青年。在肯尼亚,一半以上的人口是青年,他们中的大多数生活在农村地区,没有工作。大多数农村青年参加自力更生项目以改善生计。本文探讨了撒哈拉以南非洲农村青年农业项目的未来。这篇文章基于一项研究,该研究旨在确定自力更生项目对肯尼亚纳库鲁县选定农村地区青年生计的影响。作者于2017年在肯尼亚纳库鲁县对青年自力更生项目和生计进行了深入调查。这项研究调查了积极从事旨在改善生计的自力更生项目的青年。调查内容包括所推行的自力更生计划的性质和类型、自力更生计划对青年经济福利的贡献,以及青年在推行自力更生计划时所面对的挑战,以及他们如何克服这些挑战。本研究和其他相关研究的总体结论是,青年农业项目对他们在农村地区的经济福利作出了重大贡献,从而改善了他们的生计,从而为加强农业系统架起了桥梁
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引用次数: 0
Review on Production and Reproduction Performance of Indigenous Chicken in Ethiopia 埃塞俄比亚土鸡生产与繁殖性能研究进展
Pub Date : 2022-04-22 DOI: 10.37284/eajab.5.1.638
Melkam Aleme
The review summarizes the production and reproductive performance of indigenous chicken in Ethiopia. Even though the total population of indigenous chicken is high enough (98%) than other exotic and crossbreeds, the gain from the poultry sector is still low. Thus, production was encountered under free-range systems with low input for the sector, which limits the profit due to low egg production, small egg size, slow growth rate, late maturity, small clutch size, intensive inclination to broodiness, and high mortality of chickens. The reproductive performance of indigenous chickens includes hatchability and fertility of eggs in addition to the above, which depended on health, nutrition, genetics, storage, incubation condition, and seasonal fluctuation, as well as the number of eggs given to broody hens, was also another factor that causes variability. The hatchability of broody hen reaches up to 85.69%, which was higher than reports from a modern incubator in governmental poultry breed and multiplication centre in Ethiopia (69%) under standard breeding conditions. In terms of the egg and meat production, minimum values were recorded than other exotic and cross breeds because there was no identified productive breed in the country and still in classifications based on ecotypes/location/ and feather plumages of the chicken, even if they have good quality in terms of test for their products. They are also good scavenging as well as foragers and have a high level of disease tolerance, good maternal quality, adapt to harsh conditions and poor-quality feeds. However, there is a lack of knowledge about poultry production, limitation of feed resources, the prevalence of disease as well as institutional and socio-economic conditions are faced
综述了埃塞俄比亚土鸡的生产和繁殖性能。尽管本地鸡的总数(98%)比其他外来和杂交品种足够高,但家禽业的收益仍然很低。因此,在自由放养系统下,该部门的投入较低,这限制了利润,因为鸡蛋产量低,鸡蛋大小小,生长速度慢,成熟晚,产蛋量小,倾向于孵蛋,鸡的死亡率高。除上述因素外,土鸡的繁殖性能还包括鸡蛋的孵化率和受精率,这取决于健康、营养、遗传、储存、孵化条件和季节波动,以及给孵鸡的鸡蛋数量,这也是造成变异的另一个因素。在标准饲养条件下,产蛋母鸡的孵化率可达85.69%,高于埃塞俄比亚政府家禽养殖繁殖中心的现代化孵化箱的孵化率(69%)。在蛋和肉的生产方面,记录的最低价值比其他外来品种和杂交品种要低,因为该国没有确定的生产品种,并且仍然根据鸡的生态型/位置/羽毛羽毛进行分类,即使它们在产品测试方面具有良好的质量。它们也是良好的食腐和觅食者,具有高水平的疾病耐受性,良好的母性,适应恶劣的条件和劣质的饲料。然而,缺乏家禽生产知识、饲料资源有限、疾病流行以及体制和社会经济条件都是面临的问题
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引用次数: 2
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East African Journal of Agriculture and Biotechnology
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