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A Mixed-level Factorial Experiment to Elucidate the Impact of Inorganic Fertilizers on Crop Yield 阐明无机肥料对作物产量影响的混合因子试验
Pub Date : 2024-07-16 DOI: 10.52589/rjaed-mljyw3ax
Akra U. P., Bassey E. E., Etim A. C., Umondak U. J., Chiukpai A. I., Akpan U. A.
Lack of nutrients in the soil affects soil fertility which can hinder the growth and yield of any crop. Therefore, soil amendment is important to improve soil nutrient either by organic or inorganic technique. In this paper, we considered different inorganic fertilizers to determine the main optimal effect and their interaction on the yield of crop by adoption of mixed-level factorial experiment. Three inorganic fertilizers namely Nitrogen (N), Phosphorous (P) and Potassium (K) were considered each at different levels using tomato crop for investigation. We set up a multiple linear model to match with the design. We estimated the model parameters with the error component and sums of squares. A 2×3×4 design structure for factorial combinations—of factor N at two levels, factor P at three levels, and factor K at four levels using a randomized complete block design with three replications—was developed. Normality of the data was tested and factors visualization for both main and interaction effects were illustrated by the use of graphs. The result revealed that Nitrogen (N) and Potassium (K) concentration are significant while Phosphorous (P) concentration is not, the effect of two-factor interactions for NP and PK are not significant and NK is significant, which signified that the yields do not depend on the levels irrespective of the factor. Based on the results, we concluded that phosphorus is the best inorganic fertilizer compared with Nitrogen and Potassium in terms of soil nutrient for the yield of crops.
土壤中缺乏养分会影响土壤肥力,从而阻碍作物的生长和产量。因此,土壤改良对于通过有机或无机技术改善土壤养分非常重要。在本文中,我们考虑了不同的无机肥料,通过混合水平因子实验来确定它们对作物产量的主要最佳影响及其相互作用。我们以番茄作物为研究对象,考虑了三种不同水平的无机肥料,即氮(N)、磷(P)和钾(K)。我们建立了一个与设计相匹配的多元线性模型。我们利用误差分量和平方和对模型参数进行了估计。采用三次重复的随机完全区组设计,建立了 2×3×4 的因子组合设计结构,其中因子 N 为两个水平,因子 P 为三个水平,因子 K 为四个水平。对数据的正态性进行了检验,并通过图表说明了主效应和交互效应的可视化因素。结果表明,氮(N)和钾(K)浓度显著,而磷(P)浓度不显著,氮磷和 PK 的双因素交互作用效应不显著,而 NK 显著,这表明产量与因素无关。根据这些结果,我们得出结论:就土壤养分而言,磷与氮和钾相比是对作物产量最好的无机肥料。
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引用次数: 0
Perceived Effects of Climate Variability on Crop Production in Imo State, Nigeria 气候多变性对尼日利亚伊莫州作物生产影响的认识
Pub Date : 2024-07-03 DOI: 10.52589/rjaed-uzgu3rtq
Nwaeboh A. V., Egwuonwu H. A.
This study assessed the effect of climate variability on crop production in Imo State, Nigeria. Climate variability has direct impacts that cause vulnerability to the natural and social systems through changes in average temperatures, temperature extremes and extreme weather events like flooding and droughts. The study described the socio-economic characteristics of the crop farmers, ascertained crop farmers’ knowledge on climate variability, determined the perception of farmers on climate variability, and examined the perceived effects of climate variability on food crop yield production. A multistage sampling procedure was used in the selection of one hundred and eighty-three (183) crop-based farmers. Structured questionnaires were used in obtaining data and the data collected were analyzed using frequency, percentage, mean score and multiple regression analysis. Findings show that the mean age was 48.77 years. Majority (71.58%) were females. Majority (78.14%) were married with an average household size of 8 persons. Most (65.57%) had secondary education with an average farming experience of 21.18 years. Average farm size and farm income were 1.24 hectares and ₦33,000.00 respectively. Findings show that farmers had major knowledge of climate variability as zero/minimum tillage practices (99.45%) and knowledge on rain-water harvesting (97.81%) amongst others. Farmers perceived climate variability (x̄ = 3.49), starts late and ends early (x̄ = 3.45), extremes in temperatures (x̄ = 3.39), too much/heavy rains (x̄ = 3.396) and long dry spells during the season (x̄ = 3.51), amongst others. Crop farmers further perceived that climate variability has resulted in declining crop yields (x̄ = 3.35), increased water scarcity on farm (x̄ = 3.45), high incidences of pest and diseases (x̄ = 3.29), and increased rate of erosion/flooding (x̄ = 3.50) amongst others. The study strongly recommends that the extension services should be strengthened so as to pay farmers regular visits to ascertain their challenges on the effects of climate variability and know where to assist them.
本研究评估了气候多变性对尼日利亚伊莫州作物生产的影响。气候多变性通过平均气温、极端气温以及洪水和干旱等极端天气事件的变化产生直接影响,导致自然和社会系统的脆弱性。这项研究描述了种植农户的社会经济特征,确定了种植农户对气候多变性的认识,确定了农户对气候多变性的看法,并考察了气候多变性对粮食作物产量的影响。采用多阶段抽样程序选择了 183 位种植农作物的农民。在获取数据时使用了结构化问卷,并使用频率、百分比、平均得分和多元回归分析法对所收集的数据进行了分析。调查结果显示,平均年龄为 48.77 岁。大多数(71.58%)为女性。大多数(78.14%)已婚,平均家庭规模为 8 人。大多数人(65.57%)受过中等教育,平均务农年限为 21.18 年。平均农场面积和农场收入分别为 1.24 公顷和 ₦33,000.00。调查结果显示,农民对气候多变性的主要了解是零/少耕作法(99.45%)和雨水收集知识(97.81%)等。农民认为气候多变(x̄ = 3.49)、开始较晚和结束较早(x̄ = 3.45)、气温极端(x̄ = 3.39)、雨量过多/过大(x̄ = 3.396)以及季节中长期干旱(x̄ = 3.51)等。种植农户还认为,气候多变性导致农作物产量下降(x̄ = 3.35)、农田缺水加剧(x̄ = 3.45)、病虫害高发(x̄ = 3.29)以及侵蚀/洪涝率上升(x̄ = 3.50)等。研究强烈建议加强推广服务,以便定期走访农民,了解他们在气候多变性影响方面所面临的挑战,并知道在哪些方面可以为他们提供帮助。
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引用次数: 0
Agricultural Sector Output and Economic Growth Sustainability in Nigeria 尼日利亚农业部门的产出与经济增长的可持续性
Pub Date : 2024-05-03 DOI: 10.52589/rjaed-oe05p3ai
Anugwom Chinenye Georgina
This study examined the impact of agricultural sector output on economic growth and sustainability in Nigeria. The data for the study were extracted from the Central Bank of Nigeria (CBN) Statistical Bulletin. The methodology adopted in the research is linear regression with the application of the Ordinary Least Squares (OLS) Technique. The E-views 10 was the econometric software used for the research. The major findings of the study reveal that agricultural output contributes negatively and insignificantly to economic growth, government agricultural expenditures contribute negatively and insignificantly to economic growth, rainfall contributes negatively and insignificantly to economic growth and foreign direct investment in the agricultural sector contributes negatively and insignificantly to economic growth. It is therefore the recommendation of this paper that the government of Nigeria should encourage farmers by giving soft loans for agricultural activities. This will help farmers meet with financial needs in terms of purchasing some seeds, hiring machines, etc. thereby boosting massive agricultural production in Nigeria.
本研究探讨了农业部门的产出对尼日利亚经济增长和可持续性的影响。研究数据摘自尼日利亚中央银行(CBN)统计公报。研究采用的方法是线性回归,并应用了普通最小二乘法(OLS)技术。研究使用的计量经济学软件是 E-views 10。研究的主要结果显示,农业产出对经济增长的贡献为负且不显著,政府农业支出对经济增长的贡献为负且不显著,降雨量对经济增长的贡献为负且不显著,农业部门的外国直接投资对经济增长的贡献为负且不显著。因此,本文建议尼日利亚政府通过为农业活动提供软贷款来鼓励农民。这将帮助农民满足购买种子、租用机器等方面的资金需求,从而促进尼日利亚大规模的农业生产。
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引用次数: 0
Determinants of Income Inequality Sources among Women in Rural Oyo State, Nigeria 尼日利亚奥约州农村妇女收入不平等来源的决定因素
Pub Date : 2024-04-15 DOI: 10.52589/rjaed-nhmgfrt9
A. O., Adenegan K.
This paper applies the regression-based inequality decomposition approach to explore determinants of income inequality sources among women in rural Oyo State, Nigeria. A four-stage sampling procedure was used in the collection of primary data with purposive selection of two agricultural development programme zones in Oyo State of Nigeria. 150 respondents were eventually used for the study. Structured questionnaires and interview schedules were used to collect data. Data were analyzed using descriptive statistics and Shapley decomposition approach. Age and household size of women were 35.5±1.06 years and 8.0±0.59 persons, respectively. Most respondents (88.0%) were married and 43.3% were farmers with income of N24,196.76±11,897.90 per month. Sources that largely explain inequality were primary occupation (0.5551), farm size (0.2523) and household assets (0.0766) and the relative contributions of these factors sum up to 80%. Total inequality computed by the Gini index was 0.2206 and it implies that the contribution of the predicted residual term to income inequality in this case was 22.06%.The marginal contribution of the estimated income sources of the weighted mean with no negative values from level 1 to 12 were primary occupation, educational level, workers per household, number of assets and location with weighted marginal contribution of 0.0125, 0.0120, 0.0105, 0.0071 and 0.0053 respectively. Narrowing the gap between those at the top and the bottom of income distribution will reduce inequality in the households and the nation at large and that is the more reason this study needs attention because within group components overwhelmingly accounted for inequality compared to the between group components. The role of spatial inequality and policies that encourage entrepreneurship training and non-formal education for women in rural areas would be inequality reducing, and would tend to be more effective if additional policy instruments are used to target other sources of measured income inequality.
本文采用基于回归的不平等分解方法来探讨尼日利亚奥约州农村妇女收入不平等来源的决定因素。在收集原始数据时采用了四阶段抽样程序,有目的性地选择了尼日利亚奥约州的两个农业发展计划区。研究最终使用了 150 名受访者。收集数据时使用了结构化问卷和访谈表。数据分析采用了描述性统计和 Shapley 分解法。妇女的年龄和家庭规模分别为 35.5±1.06 岁和 8.0±0.59 人。大多数受访者(88.0%)已婚,43.3%为农民,月收入为(24,196.76±11,897.90)纳克法。主要解释不平等的来源是主要职业(0.5551)、农场规模(0.2523)和家庭资产(0.0766),这些因素的相对贡献率总和为 80%。用吉尼指数计算的总不平等率为 0.2206,这意味着在这种情况下,预测残差项对收入不平等的贡献率为 22.06%。从 1 到 12 级,加权平均值无负值的估计收入来源的边际贡献率分别为初级职业、教育水平、每户工人、资产数量和地点,加权边际贡献率分别为 0.0125、0.0120、0.0105、0.0071 和 0.0053。缩小收入分配顶层和底层之间的差距将减少家庭和整个国家的不平等,这也是本研究需要关注的更多原因,因为与组间因素相比,组内因素在不平等中占压倒性优势。空间不平等的作用以及鼓励农村妇女创业培训和非正规教育的政策将减少不平等现象,如果利用其他政策工具来针对其他已衡量的收入不平等来源,则会更加有效。
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引用次数: 0
Stochastic Frontier Analysis of Hot Pepper Production among Small-Scale Farmers in Dutsin-Ma Local Government Area of Katsina State, Nigeria 尼日利亚卡齐纳州 Dutsin-Ma 地方政府地区小型农户辣椒生产的随机前沿分析
Pub Date : 2024-01-07 DOI: 10.52589/rjaed-cfdzthsr
Nazifi B., Abdullahi B.N., Suleiman S.
This study used the Stochastic Frontier model to analyze hot pepper production among small-scale farmers in Dutsin-ma Local Government Area, Katsina State. Purposive and proportionate random sampling techniques were used to select 121 hot pepper farmers from whom the data was collected using a structured questionnaire. The data was analyzed using descriptive statistics, gross margin analysis, and stochastic frontier production function model. The result of the study shows that hot pepper production activity is dominated by male (99.2%) and married (95.0%) farmers whom are middle aged (Mean = 39 year) and most of them (about 53%) have household size of 1-10 persons, and an average farming experience of 13 years with a farm size average of 1.5 hectares. Majority of the hot pepper producers are engaged in its production for income generation while only few among them have access to credits. The result of the gross margin analysis (GM) shows that hot pepper farmers incurred total variable cost (TVC) of NGN138,703.6, and a return of NGN164,513.4 that yielded the profit of NGN25,809.8 per hectare of production and a return on investment of 1.28. The average technical efficiency (TE) of the farmers was found to be 80% among hot pepper farmers in the study area. Moreover the result of the frontier analysis shows that seed, labor and fertilizer are significant inputs determining hot pepper output. In addition to that inefficiency components of the frontier analysis revealed education, access to extension service, cooperative membership, Years of farming experience, farm size, and household size to be the significant determinants of efficiency of hot pepper production in the study area. The result also revealed that farmers in the study area are faced with major challenges of high costs of production inputs and problems of pests and diseases.
本研究使用随机前沿模型分析了卡齐纳州 Dutsin-ma 地方政府地区小型农户的辣椒生产情况。研究采用了有目的和按比例随机抽样技术,选择了 121 位辣椒种植农,并通过结构化问卷收集了他们的数据。数据分析采用了描述性统计、毛利率分析和随机前沿生产函数模型。研究结果表明,辣椒生产活动以男性(99.2%)和已婚(95.0%)农民为主,他们都是中年人(平均年龄 = 39 岁),其中大多数(约 53%)的家庭规模为 1-10 人,平均务农年限为 13 年,平均农场面积为 1.5 公顷。大部分辣椒生产者从事辣椒生产是为了创收,只有极少数人能获得贷款。毛利率分析(GM)结果显示,辣椒种植户的总可变成本(TVC)为 138 703.6 新元,收益为 164 513.4 新元,每公顷产量的利润为 25 809.8 新元,投资回报率为 1.28。研究发现,研究区辣椒种植农户的平均技术效率(TE)为 80%。此外,前沿分析结果表明,种子、劳动力和肥料是决定辣椒产量的重要投入。此外,前沿分析的低效率部分显示,教育程度、获得推广服务的机会、合作社成员资格、耕作年限、农场规模和家庭规模是研究地区辣椒生产效率的重要决定因素。研究结果还显示,研究地区的农民面临着生产投入成本高和病虫害问题等主要挑战。
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引用次数: 0
Cashless Transactions Socioeconomic Determinants and Its Effectiveness in Livestock Marketing Activities among Livestock Marketers in Katsina State, Nigeria 无现金交易的社会经济决定因素及其在尼日利亚卡齐纳州牲畜营销活动中的有效性
Pub Date : 2023-11-14 DOI: 10.52589/rjaed-mzso5qrh
Nazifi B., Garba M.G., Ibrahim M.
The study analyzed cashless transactions socio-economic determinants and its effectiveness in livestock marketing activities among livestock marketers in Katsina State, Nigeria. Multi-stage sampling procedure was deployed to select and interview 366 livestock marketers. Descriptive statistics, likert scale and binary logistic regression model were used to analyze data collected. Majority (76.5%) of the livestock marketers were found to be engaged in cashless transactions. The livestock marketing in the study area is predominantly by male (100%) and married (96.45%) marketers of which most of them have some level of formal education ranging from primary (40.71%), secondary (19.94%) and tertiary education (28.43%). They have an average age of 47 years with an average experience of 21 years of marketing activities. Majority (88.25%) of them were also found to have annual income of 100,000 – 1,080,000 naira. Results further show that cashless transactions were effective only in animal selling transactions (M=3.079) and animal purchase transaction activity (M=2.349), among various livestock marketing activities. The result findings also revealed level of education (p<0.01), income of the marketers (p<0.05), cooperative members (p<0.01), and mobile phone ownership (p<0.01) to be the statistical significant factors influencing decision of livestock marketers participation in cashless transaction in the study area. Inadequate cash in circulation (98.09%), poor acceptance of transfer by some marketers (96.99%) and uncertainty of transaction success (96.72%) were major challenges of engagement in cashless transactions in the study area. It can therefore be recommended that mitigating challenges and improving contributing factors will enhance cashless transaction effectiveness in Livestock marketing activities.
本研究分析了尼日利亚卡齐纳州牲畜营销人员进行无现金交易的社会经济决定因素及其在牲畜营销活动中的有效性。研究采用多阶段抽样程序选择并采访了 366 名牲畜营销人员。对收集到的数据采用了描述性统计、李克特量表和二元逻辑回归模型进行分析。研究发现,大多数牲畜销售商(76.5%)从事无现金交易。在研究地区从事牲畜营销的主要是男性(100%)和已婚(96.45%)营销人员,其中大多数受过一定程度的正规教育,包括小学(40.71%)、中学(19.94%)和高等教育(28.43%)。他们的平均年龄为 47 岁,平均营销活动经验为 21 年。他们中的大多数(88.25%)年收入在 10 万至 108 万奈拉之间。结果进一步显示,在各种牲畜营销活动中,无现金交易仅在牲畜销售交易(M=3.079)和牲畜购买交易活动(M=2.349)中有效。研究结果还显示,教育水平(P<0.01)、营销人员收入(P<0.05)、合作社成员(P<0.01)和手机拥有量(P<0.01)是影响研究地区牲畜营销人员参与无现金交易决策的具有统计学意义的因素。流通中的现金不足(98.09%)、部分营销人员对转账的接受程度低(96.99%)和交易成功的不确定性(96.72%)是研究地区参与无现金交易的主要挑战。因此,可以建议,减轻挑战和改善促成因素将提高无现金交易在牲畜营销活动中的有效性。
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引用次数: 0
Agricultural Cooperative and Rural Poverty Reduction among Members in Ekiti State, Nigeria 尼日利亚埃基蒂州成员间的农业合作社和农村减贫
Pub Date : 2023-07-04 DOI: 10.52589/rjaed-1htxxas9
Ogiamien F.O., Emejulu G.A., Ojiagu C.N.
This study investigated the link between agricultural cooperative and rural poverty reduction among members in Ekiti State. Primary data from the 330 copies of the questionnaire were distributed to rural farmers in the study area. Data obtained were analyzed using descriptive statistics, spearman correlation and paired sample T-Test to test the formulated hypotheses of the study at the 5% level. Results from the data analyzed shows that the correlation matrix between the variables (cooperative marketing, cooperative credit extension and cooperative farm input supply) revealed positive coefficient values of 0.111, 0.151 and 0.372 respectively. The implication of this is that there exists a significant positive relationship between the dependent and independent variables in the study area. This also explains that cooperative marketing, cooperative credit extension and cooperative farm input supply will help in reducing poverty in the study area. The study recommended that government should improve on the road infrastructure in the rural areas to create easy transportation of agricultural produce to city centers to further enhance rural income, government and relevant agencies are advised to make prompt and low interest rate credit facility available for farm business and should provide farmers with the needed input to boost farm business which can aid employment creation and also provide the farmers with the technical know-how through trainings and seminars on the use of implements/inputs that can be helpful to their farming.
这项研究调查了埃基蒂州成员之间农业合作社与农村减贫之间的联系。330份调查问卷的主要数据分发给了研究地区的农民。对所得数据进行描述性统计、spearman相关和配对样本t检验,在5%的水平下检验研究的假设。数据分析结果表明,合作营销、合作信贷和合作农场投入供给三者之间的相关矩阵分别为0.111、0.151和0.372。这意味着研究区域内的因变量和自变量之间存在显著的正相关关系。这也解释了合作营销、合作信贷和合作农场投入供应将有助于减少研究地区的贫困。该研究建议,政府应改善农村地区的道路基础设施,为农产品到城市中心的运输创造便利条件,从而进一步提高农村收入。建议政府和有关机构为农业企业提供及时和低利率的信贷便利,并向农民提供必要的投入,以促进农业业务,这有助于创造就业机会,并通过培训和研讨会向农民提供技术诀窍,使他们了解如何使用对农业有帮助的工具/投入。
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引用次数: 0
Factors Hindering Agricultural Cooperative Societies in Contributing Adequately to Poverty and Hunger Eradication among the Rural Community Dwellers in Ido-Osi Local Government Area in Ekiti State 阻碍农业合作社充分促进埃基蒂州伊多奥西地方政府地区农村社区居民消除贫困和饥饿的因素
Pub Date : 2023-06-06 DOI: 10.52589/rjaed-va2f1ilv
Akosile M.O., Olajide D.S., Ogiamien O.F., Dawodu F.T.
The study examined the factors hindering Agricultural Cooperative Societies from contributing adequately to poverty and hunger eradication among the rural community dwellers in Ido-Osi Local Government Area in Ekiti State. It also determined how the government and other agencies can assist Agricultural Cooperative Societies to sustain inclusive agricultural development and eradicate poverty and hunger among Ido-Osi Local Government Area rural households. The project employed primary data sources; the primary sources were one hundred and twenty self-administered questionnaires, of which ninety were retrieved and analysed using the linear regression model. The result indicated factors hindering agricultural cooperative societies have a negative and significant contribution to poverty and hunger eradication among the rural community dwellers in Ido-Osi Local Government Area, and ways in which agricultural cooperative societies can be assisted by government and other agencies have a positive and significant effect to sustaining inclusive agricultural development and eradication of poverty and hunger among rural households in Ido-Osi Local Government Area, Ekiti State. The study recommends that awareness should be made and emphasising patronising agricultural cooperative societies, which can serve as one way to reduce poverty in the state. Also, microfinance banks and other financial institutions supporting agricultural cooperative societies should increase the volume base of funds allotted to cooperatives with minimal and bearable interest rates.
这项研究审查了妨碍农业合作社为埃基蒂州伊多-奥西地方政府地区农村社区居民消除贫穷和饥饿作出充分贡献的因素。它还确定了政府和其他机构如何协助农业合作社维持包容性农业发展,并消除伊多奥西地方政府区农村家庭的贫困和饥饿。该项目采用了原始数据源;主要资料来源为120份自填问卷,其中90份采用线性回归模型进行分析。研究结果表明,阻碍农业合作社发展的因素对伊多奥西地方政府辖区农村社区居民消除贫困和饥饿具有显著的负向贡献;政府和其他机构援助农业合作社的方式对维持包容性农业发展和消除埃基蒂州伊多奥西地方政府区农村家庭的贫困和饥饿具有积极和重大的影响。该研究建议,应该提高人们的意识,并强调对农业合作社的资助,这可以作为减少该州贫困的一种方式。此外,支持农业合作社的小额信贷银行和其他金融机构应以最低和可承受的利率增加分配给合作社的资金的数量基础。
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引用次数: 0
Improving Profit for Small-scale Broiler Enterprise Using Self Formulated Diet in Sokoto State 索科托州使用自配饲粮提高小规模肉鸡企业利润
Pub Date : 2023-05-31 DOI: 10.52589/rjaed_jr275kan
I. K., Balarabe Y.I.
This study was undertaken to assess the role of self formulated diet in reducing broiler feed cost in Sokoto State. To source for data, the experiment was conducted at the research farm of Shehu Shagari College of Education, Sokoto. Three diets containing nutrient levels recommended by literature were self formulated using local ingredients. Ultima brand of commercial feed was used as a control. One hundred and eighty strains of Ross chicks were procured and divided into four groups of forty-five birds per diet and 15 per replicate in a completely randomized design. Diets were coded as Local Diet 1 (LDI), Local Diet 2 (LD2), Local Diet 3 (LD3) and CR (Commercial diet). Feed and water were fed ad libitum; the experiment lasted 49 days. Farm budgetary tools were used to calculate profitability and economic efficiency for each enterprise. The results of the study showed that birds fed commercial diet were more profitable to keep.
本研究旨在评估自配制日粮在降低索科托州肉鸡饲料成本方面的作用。为了获取数据,实验在索科托Shehu Shagari教育学院的研究农场进行。三种含有文献推荐营养水平的饮食采用当地食材自行配制。用Ultima品牌的商品饲料作为对照。采用完全随机设计,将180株罗斯鸡分为4组,每组45只,每个重复15只。日粮编码为当地日粮1 (LDI)、当地日粮2 (LD2)、当地日粮3 (LD3)和CR(商品日粮)。饲料和水自由饲喂;试验期49 d。农场预算工具用于计算每个企业的盈利能力和经济效率。研究结果表明,以商业饲料喂养的鸟类更有利可图。
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引用次数: 0
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Research Journal of Agricultural Economics and Development
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