N. Widaningsih, B. Hartono, H. Utami, E. Rohaeni, E. Gunawan
Abstract The objective of this study is to analyse the effect of swamp buffalo (Bubalus bubalis carabauesis) sustainability indicators and to examine the relationship between these. The research was conducted in the central area for the development of swamp buffalo in South Kalimantan, namely, Hulu Sungai Utara Regency, in July 2022 with the participation of 145 farmers, who were identified using the multistage sampling method. There were 53 indicators with 9 latent variables, statistically modelled using the partial least squares structural equation modelling method, with evaluation of the outer and inner models. The results show that the information system and economy had a significant effect on human resources (HR), which in turn had a significant effect on the financial and business sustainability of swamp buffalo. The influence of information systems on resources was positive, while economic indicators had a negative influence. HR had a positive relationship with the financial and business sustainability of swamp buffalo. The sustainability indicators in swamp buffalo farming are complex and vary from region to region. Based on the study results, it is expected that the government as policymakers, especially the government of Hulu Sungai Utara Regency, South Kalimantan, pay special attention to the aspects of information systems, the economy, HR, and the financial and business sustainability of swamp buffalo, while also considering other indicators such as ecological, sociocultural, technological, and institutional ones.
摘要本研究的目的是分析沼泽水牛（Bubalus bubalis carabauesis）可持续性指标的影响，并检验它们之间的关系。这项研究于2022年7月在南加里曼丹沼泽水牛发展的中心地区，即Hulu Sungai Utara Regency进行，145名农民参与了研究，他们是使用多级抽样方法确定的。共有53个指标，包含9个潜在变量，使用偏最小二乘结构方程建模方法进行统计建模，并对外部和内部模型进行评估。结果表明，信息系统和经济对人力资源（HR）有显著影响，而人力资源又对沼泽水牛的财务和业务可持续性有显著影响。信息系统对资源的影响是积极的，而经济指标则有负面影响。人力资源与沼泽水牛的财务和业务可持续性呈正相关。沼泽水牛养殖的可持续性指标很复杂，并且因地区而异。根据研究结果，预计政府作为决策者，特别是南加里曼丹Hulu Sungai Utara Regency政府，将特别关注沼泽水牛的信息系统、经济、人力资源以及财务和商业可持续性等方面，同时考虑生态、社会文化、技术、，以及体制性的。
{"title":"Indicators of swamp buffalo business sustainability using partial least squares structural equation modelling","authors":"N. Widaningsih, B. Hartono, H. Utami, E. Rohaeni, E. Gunawan","doi":"10.1515/opag-2022-0216","DOIUrl":"https://doi.org/10.1515/opag-2022-0216","url":null,"abstract":"Abstract The objective of this study is to analyse the effect of swamp buffalo (Bubalus bubalis carabauesis) sustainability indicators and to examine the relationship between these. The research was conducted in the central area for the development of swamp buffalo in South Kalimantan, namely, Hulu Sungai Utara Regency, in July 2022 with the participation of 145 farmers, who were identified using the multistage sampling method. There were 53 indicators with 9 latent variables, statistically modelled using the partial least squares structural equation modelling method, with evaluation of the outer and inner models. The results show that the information system and economy had a significant effect on human resources (HR), which in turn had a significant effect on the financial and business sustainability of swamp buffalo. The influence of information systems on resources was positive, while economic indicators had a negative influence. HR had a positive relationship with the financial and business sustainability of swamp buffalo. The sustainability indicators in swamp buffalo farming are complex and vary from region to region. Based on the study results, it is expected that the government as policymakers, especially the government of Hulu Sungai Utara Regency, South Kalimantan, pay special attention to the aspects of information systems, the economy, HR, and the financial and business sustainability of swamp buffalo, while also considering other indicators such as ecological, sociocultural, technological, and institutional ones.","PeriodicalId":45740,"journal":{"name":"Open Agriculture","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43612507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Raharjo, M. Z. Zaman, D. Praseptiangga, A. Yunus
Abstract The bark of Hopea beccariana Burck is used to prevent damage to coconut sap. The purpose of this study was to determine the physicochemical and microbiological characteristics of various extracts of the bark of H. beccariana Burck as potential natural preservatives for coconut sap. The bark was extracted by maceration method for 24 h assisted by stirring using ethanol, methanol, n-hexane, and water at 60°C as solvent. The type of solvent used for extraction had a significant effect on the yield, total phenolic, total flavonoid, antioxidant activity, toxicity, and diameter of the inhibition zone against Lactobacillus plantarum. The highest yield was found in methanol extract at 22.34%, the highest total phenolic content was found in ethanol extract of 53.39 mg gallic acid equivalent/g extract, and the highest total flavonoid content was found in the aqueous extract at 60°C of 106.70 mg QE/g extract; all extracts have an IC50 value of 80.28–91.80 ppm (very strong antioxidant) and ascorbic acid of 5.78 ppm. Methanol extract is classified as very toxic with an LC50 of 38.21 ppm. The dominant compounds produced by gas chromatography–mass spectrometer were hexanedioic acid, bis(2-ethylhexyl) ester; ethyl oleate; 9-octadecenoic acid (Z)-, ethyl ester; and hexadecanoic acid, ethyl ester. The diameter of the inhibition zone for Saccharomyces cerevisiae was 13.50–14.72 mm, L. plantarum was 10.31–17.72 mm, and Leuconostoc mesenteroides was 13.25–18.06 mm. All extracts had minimum inhibitory concentration values of 2.5 mg/mL and minimum bactericidal concentration values of 2.5 mg/mL for n-hexane extract and 60°C water, while ethanol and methanol extracts had MBC values >50 mg/mL.
{"title":"Physicochemical and microbiological characteristics of various stem bark extracts of Hopea beccariana Burck potential as natural preservatives of coconut sap","authors":"D. Raharjo, M. Z. Zaman, D. Praseptiangga, A. Yunus","doi":"10.1515/opag-2022-0175","DOIUrl":"https://doi.org/10.1515/opag-2022-0175","url":null,"abstract":"Abstract The bark of Hopea beccariana Burck is used to prevent damage to coconut sap. The purpose of this study was to determine the physicochemical and microbiological characteristics of various extracts of the bark of H. beccariana Burck as potential natural preservatives for coconut sap. The bark was extracted by maceration method for 24 h assisted by stirring using ethanol, methanol, n-hexane, and water at 60°C as solvent. The type of solvent used for extraction had a significant effect on the yield, total phenolic, total flavonoid, antioxidant activity, toxicity, and diameter of the inhibition zone against Lactobacillus plantarum. The highest yield was found in methanol extract at 22.34%, the highest total phenolic content was found in ethanol extract of 53.39 mg gallic acid equivalent/g extract, and the highest total flavonoid content was found in the aqueous extract at 60°C of 106.70 mg QE/g extract; all extracts have an IC50 value of 80.28–91.80 ppm (very strong antioxidant) and ascorbic acid of 5.78 ppm. Methanol extract is classified as very toxic with an LC50 of 38.21 ppm. The dominant compounds produced by gas chromatography–mass spectrometer were hexanedioic acid, bis(2-ethylhexyl) ester; ethyl oleate; 9-octadecenoic acid (Z)-, ethyl ester; and hexadecanoic acid, ethyl ester. The diameter of the inhibition zone for Saccharomyces cerevisiae was 13.50–14.72 mm, L. plantarum was 10.31–17.72 mm, and Leuconostoc mesenteroides was 13.25–18.06 mm. All extracts had minimum inhibitory concentration values of 2.5 mg/mL and minimum bactericidal concentration values of 2.5 mg/mL for n-hexane extract and 60°C water, while ethanol and methanol extracts had MBC values >50 mg/mL.","PeriodicalId":45740,"journal":{"name":"Open Agriculture","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48779982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eni Siti Rohaeni, Arif Dwi Santoso, Ening Ariningsih, Neni Widaningsih, Lintje Hutahaean, Dwi Priyanto, Nyak Ilham, Suharyon Suharyon, Herdis Herdis, Yeni Widiawati, Maureen Chrisye Hadiatry, Sara Sorayya Ermuna, Maesti Mardiharini, Dedi Sugandi, Bachtar Bakrie, Wasito Wasito
Abstract The swamp buffalo is a valuable genetic resource and an important source of animal protein in Indonesia. Unfortunately, their population is decreasing due to problems attributed to conventional farming systems. The objective of the study was to examine the sustainability of swamp buffalo farming and identify the attributes that influence its sustainability. Data were collected through a focus group discussion involving experts and business actors in swamp buffalo farming and a survey on buffalo farmers. The study examined 52 attributes within 6 dimensions: ecological, economic, social, technological, institutional, and welfare dimensions. The data were analysed using multidimensional scaling through the Rapid Appraisal for Swamp Buffalo technique. The results of the study demonstrate that swamp buffalo farming in Hulu Sungai Utara (HSU), Hulu Sungai Selatan (HSS), and Hulu Sungai Tengah (HST) districts in South Kalimantan province has sustainability indices of 51.70, 53.13, and 48.87%, respectively. This study identified 12 leverage attributes that are very influential to the sustainability of swamp buffalo farming, i.e., climatic conditions, land suitability, marketing, income from swamp buffalo farming, mutual assistance, education level, processing technology, reproduction technology, the role of local government, capital institutions, programs from central government, and farmers’ welfare. Swamp buffalo farming in HSU and HSS is moderately sustainable, while in HST, it is less sustainable, suggesting improvement in the key factors influencing the sustainability of swamp buffalo farming. This study offers valuable insights for the government in formulating policies and programs for developing swamp buffalo farming and conserving swamp buffalo germplasm.
沼泽水牛是印度尼西亚宝贵的遗传资源和重要的动物蛋白来源。不幸的是，由于传统农业系统的问题，它们的人口正在减少。该研究的目的是检查沼泽水牛养殖的可持续性，并确定影响其可持续性的属性。通过沼泽水牛养殖专家和商业行为者参加的焦点小组讨论和对水牛农民的调查收集了数据。该研究考察了6个维度中的52个属性:生态、经济、社会、技术、制度和福利维度。通过沼泽水牛快速评价技术，采用多维尺度对数据进行分析。研究结果表明，南加里曼丹省Hulu Sungai Utara (HSU)、Hulu Sungai Selatan (HSS)和Hulu Sungai Tengah (HST)地区的沼泽水牛养殖可持续性指数分别为51.70、53.13和48.87%。本研究确定了对沼泽水牛养殖可持续性影响较大的12个杠杆属性，即气候条件、土地适宜性、市场营销、沼泽水牛养殖收入、互助性、教育水平、加工技术、再生产技术、地方政府作用、资本机构、中央政府项目和农民福利。高露江流域和高露江流域的沼泽水牛养殖具有中等可持续性，高露江流域的沼泽水牛养殖具有较低的可持续性，表明影响沼泽水牛养殖可持续性的关键因素有所改善。该研究为政府制定沼泽水牛养殖发展政策和保护沼泽水牛种质资源提供了有价值的见解。
{"title":"Analysing the sustainability of swamp buffalo (<i>Bubalus bubalis carabauesis</i>) farming as a protein source and germplasm","authors":"Eni Siti Rohaeni, Arif Dwi Santoso, Ening Ariningsih, Neni Widaningsih, Lintje Hutahaean, Dwi Priyanto, Nyak Ilham, Suharyon Suharyon, Herdis Herdis, Yeni Widiawati, Maureen Chrisye Hadiatry, Sara Sorayya Ermuna, Maesti Mardiharini, Dedi Sugandi, Bachtar Bakrie, Wasito Wasito","doi":"10.1515/opag-2022-0224","DOIUrl":"https://doi.org/10.1515/opag-2022-0224","url":null,"abstract":"Abstract The swamp buffalo is a valuable genetic resource and an important source of animal protein in Indonesia. Unfortunately, their population is decreasing due to problems attributed to conventional farming systems. The objective of the study was to examine the sustainability of swamp buffalo farming and identify the attributes that influence its sustainability. Data were collected through a focus group discussion involving experts and business actors in swamp buffalo farming and a survey on buffalo farmers. The study examined 52 attributes within 6 dimensions: ecological, economic, social, technological, institutional, and welfare dimensions. The data were analysed using multidimensional scaling through the Rapid Appraisal for Swamp Buffalo technique. The results of the study demonstrate that swamp buffalo farming in Hulu Sungai Utara (HSU), Hulu Sungai Selatan (HSS), and Hulu Sungai Tengah (HST) districts in South Kalimantan province has sustainability indices of 51.70, 53.13, and 48.87%, respectively. This study identified 12 leverage attributes that are very influential to the sustainability of swamp buffalo farming, i.e., climatic conditions, land suitability, marketing, income from swamp buffalo farming, mutual assistance, education level, processing technology, reproduction technology, the role of local government, capital institutions, programs from central government, and farmers’ welfare. Swamp buffalo farming in HSU and HSS is moderately sustainable, while in HST, it is less sustainable, suggesting improvement in the key factors influencing the sustainability of swamp buffalo farming. This study offers valuable insights for the government in formulating policies and programs for developing swamp buffalo farming and conserving swamp buffalo germplasm.","PeriodicalId":45740,"journal":{"name":"Open Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135594685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. S. Indraningsih, A. Ashari, S. Syahyuti, I. S. Anugrah, Sri Suharyono, S. Saptana, A. Iswariyadi, A. Agustian, Tri Bastuti Purwantini, M. Ariani, M. Mardiharini
Abstract Extension activities play a significant role in the success of agricultural development programs. Farmers still need agricultural extension workers (EWs) in the form of assistance, technical guidance, and management intensively and continuously. With the limited number of government EWs, the role of independent agricultural extension (IAE) workers has become crucial. In Indonesia, IAE worker has been recognized since 2006, although it has not been effective. This article aims to: (1) identify conditions and characteristics of IAE and (2) analyze the influencing factors on the role of IAE officers in supporting agricultural extension. Data collection was carried out with a structured questionnaire using Google Forms involving 161 respondents. The analysis method uses inferential statistics, namely the structural equation modeling. The results showed that the factors that directly affect the role of IAE workers are work motivation and quantity or workload. The number of IAE workers directly influences their performance. A favorable working environment is required to achieve the ideal role of IAE workers. In addition, improvement of work management, horizontal and vertical relations, and regulations posit IAE workers as an essential part of agricultural extension activities. It is necessary to have a regional regulation that legalizes the allocation of regional budgets as regular incentives to facilitate the activities of agricultural EWs.
{"title":"Factors influencing the role and performance of independent agricultural extension workers in supporting agricultural extension","authors":"K. S. Indraningsih, A. Ashari, S. Syahyuti, I. S. Anugrah, Sri Suharyono, S. Saptana, A. Iswariyadi, A. Agustian, Tri Bastuti Purwantini, M. Ariani, M. Mardiharini","doi":"10.1515/opag-2022-0164","DOIUrl":"https://doi.org/10.1515/opag-2022-0164","url":null,"abstract":"Abstract Extension activities play a significant role in the success of agricultural development programs. Farmers still need agricultural extension workers (EWs) in the form of assistance, technical guidance, and management intensively and continuously. With the limited number of government EWs, the role of independent agricultural extension (IAE) workers has become crucial. In Indonesia, IAE worker has been recognized since 2006, although it has not been effective. This article aims to: (1) identify conditions and characteristics of IAE and (2) analyze the influencing factors on the role of IAE officers in supporting agricultural extension. Data collection was carried out with a structured questionnaire using Google Forms involving 161 respondents. The analysis method uses inferential statistics, namely the structural equation modeling. The results showed that the factors that directly affect the role of IAE workers are work motivation and quantity or workload. The number of IAE workers directly influences their performance. A favorable working environment is required to achieve the ideal role of IAE workers. In addition, improvement of work management, horizontal and vertical relations, and regulations posit IAE workers as an essential part of agricultural extension activities. It is necessary to have a regional regulation that legalizes the allocation of regional budgets as regular incentives to facilitate the activities of agricultural EWs.","PeriodicalId":45740,"journal":{"name":"Open Agriculture","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43414375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Asaleye, H. Inegbedion, A. Lawal, O. Adeleke, U. Osakede, E. Ogunwole
Abstract The Nigerian government has implemented a comprehensive spectrum of policies and programmes to diversify the economy and encourage broad-based growth through investment in the agricultural sector. However, the steady increase in the poverty and unemployment rate has raised controversial issues among scholars. In light of this, the study investigates the impact of selected macroeconomic variables on Nigeria’s agricultural performance using two models for output and employment. The Error Correction Model (ECM) approach was used to establish the short and long-run behaviours. In the first model, output in the agricultural sector was used as the independent variable, while in the second model, employment in the agricultural sector was used as the independent variable. The study’s findings showed that output positively relates to credit to the agricultural sector and exchange rate. However, it was depicted that output and employment in the agricultural sector in both the short-run and the long-run are not statistically significant. The implication drawn from the study is that credit granted to the agricultural sector can foster aggregate output in the sector, which will promote long-term employment. The study suggests considerable investment in the agricultural sector and the need to strengthen institutions for proper management of resources to ensure effective evaluation of funds disbursed for improving the agricultural sector, among others.
{"title":"Revamping agricultural sector and its implications on output and employment generation: Evidence from Nigeria","authors":"A. Asaleye, H. Inegbedion, A. Lawal, O. Adeleke, U. Osakede, E. Ogunwole","doi":"10.1515/opag-2022-0140","DOIUrl":"https://doi.org/10.1515/opag-2022-0140","url":null,"abstract":"Abstract The Nigerian government has implemented a comprehensive spectrum of policies and programmes to diversify the economy and encourage broad-based growth through investment in the agricultural sector. However, the steady increase in the poverty and unemployment rate has raised controversial issues among scholars. In light of this, the study investigates the impact of selected macroeconomic variables on Nigeria’s agricultural performance using two models for output and employment. The Error Correction Model (ECM) approach was used to establish the short and long-run behaviours. In the first model, output in the agricultural sector was used as the independent variable, while in the second model, employment in the agricultural sector was used as the independent variable. The study’s findings showed that output positively relates to credit to the agricultural sector and exchange rate. However, it was depicted that output and employment in the agricultural sector in both the short-run and the long-run are not statistically significant. The implication drawn from the study is that credit granted to the agricultural sector can foster aggregate output in the sector, which will promote long-term employment. The study suggests considerable investment in the agricultural sector and the need to strengthen institutions for proper management of resources to ensure effective evaluation of funds disbursed for improving the agricultural sector, among others.","PeriodicalId":45740,"journal":{"name":"Open Agriculture","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48859497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The antifungal activity of Trichoderma hamatum K01 to control Colletotrichum gloeosporioides C01 was recorded. Pathogenicity of C. gloeosporioides C01 on citrus leaves was confirmed by the Koch postulate. T. hamatum K01 inhibited the colony growth and conidia production of C. gloeosporioides C01 by 70.55 and 79.07%, respectively. Crude extracts from T. hamatum K01 expressed an antifungal activity against C. gloeosporioides C01. The crude TK01-MeOH showed the most potent inhibitory effect on the colony growth and conidia production at the ED50 values of 273 and 355 ppm, respectively. Nanofiber TK01M gave the highest inhibition on the colony growth and conidia production at the ED50 values of 13 and 3 ppm, respectively. Control mechanism was related to the major pyrone metabolite group (6-pentyl-2H-pyran-2-one), organic compounds (benzoic acid, hexadecane, tetracosane), fatty acids (palmitic acid, linoleic acid, tetradecanoic acid, pentadecanoic acid, hexadecenoic acid, ethyl ester, linoleic acid ethyl ester, and ethyl oleate), and sorbicillin from GC-MS analysis, which were produced by T. hamatum K01. It is reported for the first time to isolate secondary metabolite pyrone (6-pentyl-2H-pyran-2-one) from T. hamatum K01, and the first report of nanofibers constructed from T. hamatum K01 against C. gloeosporioides.
{"title":"Natural product nanofibers derived from Trichoderma hamatum K01 to control citrus anthracnose caused by Colletotrichum gloeosporioides","authors":"Pheaktra Phal, K. Soytong, S. Poeaim","doi":"10.1515/opag-2022-0193","DOIUrl":"https://doi.org/10.1515/opag-2022-0193","url":null,"abstract":"Abstract The antifungal activity of Trichoderma hamatum K01 to control Colletotrichum gloeosporioides C01 was recorded. Pathogenicity of C. gloeosporioides C01 on citrus leaves was confirmed by the Koch postulate. T. hamatum K01 inhibited the colony growth and conidia production of C. gloeosporioides C01 by 70.55 and 79.07%, respectively. Crude extracts from T. hamatum K01 expressed an antifungal activity against C. gloeosporioides C01. The crude TK01-MeOH showed the most potent inhibitory effect on the colony growth and conidia production at the ED50 values of 273 and 355 ppm, respectively. Nanofiber TK01M gave the highest inhibition on the colony growth and conidia production at the ED50 values of 13 and 3 ppm, respectively. Control mechanism was related to the major pyrone metabolite group (6-pentyl-2H-pyran-2-one), organic compounds (benzoic acid, hexadecane, tetracosane), fatty acids (palmitic acid, linoleic acid, tetradecanoic acid, pentadecanoic acid, hexadecenoic acid, ethyl ester, linoleic acid ethyl ester, and ethyl oleate), and sorbicillin from GC-MS analysis, which were produced by T. hamatum K01. It is reported for the first time to isolate secondary metabolite pyrone (6-pentyl-2H-pyran-2-one) from T. hamatum K01, and the first report of nanofibers constructed from T. hamatum K01 against C. gloeosporioides.","PeriodicalId":45740,"journal":{"name":"Open Agriculture","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48342733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Okonkwo, Moses O. Isaac, E. Alhassan, Marvel Ogbevire, A. S. Alake, F. Ajao, A. Olayanju
Abstract The study developed a compact, single unit of fish feed mixing and pelleting machine. In this work, a compact fish feed mixing and pelleting machine was designed, fabricated, and evaluated for its performance efficiency. The basic units of the machine are the processing unit, structural support, and the prime mover. The major component of the feed substrates used were maize, fish meal, soya bean cake, blood, and bone meal in their varied proportions blended with wet cassava starch to establish the machine performance and efficiency. The results showed that the varied proportions of starch inclusion in the blended substrate have influence on the investigated machine performance parameters. The performance outputs from the machine revealed the highest pelleting efficiency of 80.36%, pellet durability of 98.74%, throughput capacity of 4.16 kg/h, and the least labour requirement of 0.23 man-hour per kg at a starch inclusion of 0.125 kg, while the highest pellet bulk density of 0.302 g/cm3 was recorded at 0.20 and 0.125 kg starch addition. Machine economic analysis revealed that it can be of benefit for small- to medium-scale fish feed farmers.
{"title":"Design and fabrication of a fish feed mixing cum pelleting machine for small-medium scale aquaculture industry","authors":"C. Okonkwo, Moses O. Isaac, E. Alhassan, Marvel Ogbevire, A. S. Alake, F. Ajao, A. Olayanju","doi":"10.1515/opag-2022-0124","DOIUrl":"https://doi.org/10.1515/opag-2022-0124","url":null,"abstract":"Abstract The study developed a compact, single unit of fish feed mixing and pelleting machine. In this work, a compact fish feed mixing and pelleting machine was designed, fabricated, and evaluated for its performance efficiency. The basic units of the machine are the processing unit, structural support, and the prime mover. The major component of the feed substrates used were maize, fish meal, soya bean cake, blood, and bone meal in their varied proportions blended with wet cassava starch to establish the machine performance and efficiency. The results showed that the varied proportions of starch inclusion in the blended substrate have influence on the investigated machine performance parameters. The performance outputs from the machine revealed the highest pelleting efficiency of 80.36%, pellet durability of 98.74%, throughput capacity of 4.16 kg/h, and the least labour requirement of 0.23 man-hour per kg at a starch inclusion of 0.125 kg, while the highest pellet bulk density of 0.302 g/cm3 was recorded at 0.20 and 0.125 kg starch addition. Machine economic analysis revealed that it can be of benefit for small- to medium-scale fish feed farmers.","PeriodicalId":45740,"journal":{"name":"Open Agriculture","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46579626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Tropical countries are rich in medicinal herbs that have the potentials to improve poultry productivity and health by increasing digestive enzyme activity, immune responses, and modulation of gut microbiota composition through the action of their bioactive constituents. Presently, black pepper (BP), one of such tropical herbs is gaining popularity as a substitute for antibiotics in poultry production, which have been found to promote the development of anti-resistant strains of bacteria and incorporation of drug residues in animal products. BP belongs to the genus - Piper, species – nigrum, and family - Piperaceae. The leaves, fruits, and seeds of BP are moderate in essential nutrients such as minerals and vitamins, but low in anti-nutritional factors. It is also high in important bioactive compounds such as polyphenols and flavonoids. These bioactive compounds play important roles in regulating the normal physiological functions of animals such as growth, egg production, and immune responses. Therefore, the aim of this review is to pool evidence on the chemical composition of BP that acts as feed additives and their mode of action in enhancing performance and product quality, as well as the reasons for the inconsistent results among authors on the feed additive value of BP in chicken nutrition.
{"title":"Black pepper (Piper nigrum Lam) as a natural feed additive and source of beneficial nutrients and phytochemicals in chicken nutrition","authors":"I. Ogbuewu, C. Mbajiorgu","doi":"10.1515/opag-2022-0204","DOIUrl":"https://doi.org/10.1515/opag-2022-0204","url":null,"abstract":"Abstract Tropical countries are rich in medicinal herbs that have the potentials to improve poultry productivity and health by increasing digestive enzyme activity, immune responses, and modulation of gut microbiota composition through the action of their bioactive constituents. Presently, black pepper (BP), one of such tropical herbs is gaining popularity as a substitute for antibiotics in poultry production, which have been found to promote the development of anti-resistant strains of bacteria and incorporation of drug residues in animal products. BP belongs to the genus - Piper, species – nigrum, and family - Piperaceae. The leaves, fruits, and seeds of BP are moderate in essential nutrients such as minerals and vitamins, but low in anti-nutritional factors. It is also high in important bioactive compounds such as polyphenols and flavonoids. These bioactive compounds play important roles in regulating the normal physiological functions of animals such as growth, egg production, and immune responses. Therefore, the aim of this review is to pool evidence on the chemical composition of BP that acts as feed additives and their mode of action in enhancing performance and product quality, as well as the reasons for the inconsistent results among authors on the feed additive value of BP in chicken nutrition.","PeriodicalId":45740,"journal":{"name":"Open Agriculture","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47639882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wawan K. Tolinggi, D. Salman, Rahmadanih, H. Iswoyo
Abstract Farmer regeneration in agribusiness sustainability originates from the innovation of knowledge co-creation among farmer generations and interaction between stakeholders within and outside local contexts. The present work aims at exploring knowledge co-creation in the context of different orientations between young and old farmers. It also seeks to characterize the orientation of the two farmer groups from the aspect of agriculture, processing, and marketing of coconut through knowledge co-creation interaction to further their agricultural activities. All data in this grounded theory research came from in-depth interviews; the data were further examined using an open, axial, and selective coding method. The transcription of the field note was analyzed using an ATLAS.ti version 9, a program for analyzing qualitative data. The sample of the study was 13 of young farmers (25 to 45 years old) and 17 of old farmers (45 to 65 years old). The results revealed that the old farmers focused on revitalizing coconut trees for long-term purposes. The knowledge co-creation process among this farmer group (with other stakeholders) put an emphasis on copra and cooking oil production. Young farmers, however, focused on coconut tree integration with annual plants for short-term purposes, especially on the virgin coconut oil and innovative products from foreign technology adaptation. In conclusion, coconut business sustainability is the byproduct of knowledge co-creation and engagement between old and young farmers. This condition results in the survivability of coconut farmers. The novelty of this study lies in the classification of the orientation of the two coconut farmer groups in terms of agricultural, processing, and marketing aspects, which results in knowledge co-creation and its relation to the sustainability of coconut agriculture.
{"title":"Farmer regeneration and knowledge co-creation in the sustainability of coconut agribusiness in Gorontalo, Indonesia","authors":"Wawan K. Tolinggi, D. Salman, Rahmadanih, H. Iswoyo","doi":"10.1515/opag-2022-0162","DOIUrl":"https://doi.org/10.1515/opag-2022-0162","url":null,"abstract":"Abstract Farmer regeneration in agribusiness sustainability originates from the innovation of knowledge co-creation among farmer generations and interaction between stakeholders within and outside local contexts. The present work aims at exploring knowledge co-creation in the context of different orientations between young and old farmers. It also seeks to characterize the orientation of the two farmer groups from the aspect of agriculture, processing, and marketing of coconut through knowledge co-creation interaction to further their agricultural activities. All data in this grounded theory research came from in-depth interviews; the data were further examined using an open, axial, and selective coding method. The transcription of the field note was analyzed using an ATLAS.ti version 9, a program for analyzing qualitative data. The sample of the study was 13 of young farmers (25 to 45 years old) and 17 of old farmers (45 to 65 years old). The results revealed that the old farmers focused on revitalizing coconut trees for long-term purposes. The knowledge co-creation process among this farmer group (with other stakeholders) put an emphasis on copra and cooking oil production. Young farmers, however, focused on coconut tree integration with annual plants for short-term purposes, especially on the virgin coconut oil and innovative products from foreign technology adaptation. In conclusion, coconut business sustainability is the byproduct of knowledge co-creation and engagement between old and young farmers. This condition results in the survivability of coconut farmers. The novelty of this study lies in the classification of the orientation of the two coconut farmer groups in terms of agricultural, processing, and marketing aspects, which results in knowledge co-creation and its relation to the sustainability of coconut agriculture.","PeriodicalId":45740,"journal":{"name":"Open Agriculture","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47456105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Rinaldi, N. Arya, I. K. Mahaputra, D. Elisabeth, N. M. D. Resiani, I. Arsana, T. Silitonga
Abstract Most soybean farming in Indonesia is still performed conventionally. Farmers are less interested in cultivating soybeans because the production yields are relatively small. This research aims to determine the factors influencing production, production inefficiency of soybean, and the technical efficiency (TE) and economic efficiency (EE) level of soybean farming. Primary data were collected using a survey method of soybean farmers in paddy field areas in the Tabanan Regency of Bali Province, Indonesia. Data were analyzed using the stochastic frontier approach using the Frontier 4.1 analysis tool. Factors that positively affected the increasing soybean production were land area, urea and NPK fertilizers, and soybean seeds. The factor positively affecting soybean production inefficiency was a farming experience. The average TE value was 0.77, implying that soybean farming in the study area was efficient. However, the EE value below 0.70 implied that soybean farming was inefficient. Based on soybean farmers’ farming experience, TE and EE values were getting lower. The low value of EE was suspected of causing farmers’ low interest in cultivating soybean.
{"title":"Production factors, technical, and economic efficiency of soybean (Glycine max L. Merr.) farming in Indonesia","authors":"J. Rinaldi, N. Arya, I. K. Mahaputra, D. Elisabeth, N. M. D. Resiani, I. Arsana, T. Silitonga","doi":"10.1515/opag-2022-0194","DOIUrl":"https://doi.org/10.1515/opag-2022-0194","url":null,"abstract":"Abstract Most soybean farming in Indonesia is still performed conventionally. Farmers are less interested in cultivating soybeans because the production yields are relatively small. This research aims to determine the factors influencing production, production inefficiency of soybean, and the technical efficiency (TE) and economic efficiency (EE) level of soybean farming. Primary data were collected using a survey method of soybean farmers in paddy field areas in the Tabanan Regency of Bali Province, Indonesia. Data were analyzed using the stochastic frontier approach using the Frontier 4.1 analysis tool. Factors that positively affected the increasing soybean production were land area, urea and NPK fertilizers, and soybean seeds. The factor positively affecting soybean production inefficiency was a farming experience. The average TE value was 0.77, implying that soybean farming in the study area was efficient. However, the EE value below 0.70 implied that soybean farming was inefficient. Based on soybean farmers’ farming experience, TE and EE values were getting lower. The low value of EE was suspected of causing farmers’ low interest in cultivating soybean.","PeriodicalId":45740,"journal":{"name":"Open Agriculture","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47653904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：