Nutrient flows in small-scale farm production systems from Northeastern Brazil

2018 ◽  
Vol 42 (9) ◽  
pp. 963-981
Author(s):  
Germana Gomes dos Santos Camelo ◽  
Julius Blum
2020 ◽  
Vol 56 (5) ◽  
pp. 767-779
Author(s):  
Juan de Dios García-Villegas ◽  
Anastacio García-Martínez ◽  
Carlos Manuel Arriaga-Jordán ◽  
Monica Elizama Ruiz-Torres ◽  
Adolfo Armando Rayas-Amor ◽  
...  

AbstractThe objective of the study was to characterize small-scale dairy production systems to identify the technological preferences according to the farmer and farm characteristics and to analyze the importance and role of the information communication technologies (ICTs) in the dissemination of information related to management and livestock activities. To collect the data, a survey was applied to 170 small-scale dairy farmers from central Mexico. To characterize the farms, a factor analysis (FA) and cluster analysis (CA) were performed. To compare and identify differences between groups, a Kruskal–Wallis test was conducted. Four factors that explain 70.93% of the accumulated variance were identified; these factors explain the use of technology, production characteristics, social connections, and use of ICTs. The cluster analysis identified four groups. Group 1 was integrated by farmers with more experience and the largest farms. Group 2 had higher studies and use of ICTs. Group 3 was formed by young farmers but had a low use of technology. Group 4 contained older farmers with a low use of technology. The young farmers with higher studies have begun to incorporate ICTs into their daily activities on the farm, as observed in Group 2. Smartphones were the most used and were considered important by the farmers of the four groups, since they enable interaction with other farmers and the dissemination of topics of interest related with the farm. In conclusion, four group of farmers were differentiated; therefore, different extension approaches should be implemented to take into account the preferences and the technologies considered most important for each group. The ICTs are emerging technologies among small-scale dairy farmers to communicate information related to livestock management, mainly by young farmers with studies of secondary, as observed in Group 2.


2020 ◽  
Vol 237 ◽  
pp. 104028
Author(s):  
Jesús Armando Salinas-Martínez ◽  
Rodolfo Rogelio Posadas-Domínguez ◽  
Leydi Diana Morales-Díaz ◽  
Samuel Rebollar-Rebollar ◽  
Rolando Rojo-Rubio

2017 ◽  
Vol 107 (04) ◽  
pp. 288-292
Author(s):  
M. Kück ◽  
J. Ehm ◽  
T. Hildebrandt ◽  
M. Prof. Freitag ◽  
E. M. Prof. Frazzon

Der Trend zur Fertigung individualisierter Produkte in kleinen Losgrößen erfordert hochflexible Produktionssysteme. Durch die damit verbundene Systemdynamik wird die Reihenfolgeplanung zu einem komplexen Planungsproblem. Der Beitrag beschreibt ein simulationsbasiertes Optimierungsverfahren, welches Echtzeitinformationen zur adaptiven Selektion geeigneter Prioritätsregeln verwendet. Das Potenzial des Ansatzes wird anhand eines Anwendungsfalls aus der Halbleiterindustrie demonstriert.   The trend to manufacturing individualized products in small-scale series demands highly flexible production systems. Because of the dynamic nature of such production systems, scheduling becomes a complex planning problem with frequent need for rescheduling. This article describes a data-driven simulation-based optimization approach using real-time information for adaptive job shop scheduling. The potential of the approach is demonstrated by a use case from semiconductor industry.


1993 ◽  
Vol 24 (2) ◽  
pp. 229-235
Author(s):  
G. C. MAIR ◽  
C. C. ESTABILLO ◽  
R. C. SEVILLEJA ◽  
R. D. RECOMETA

2005 ◽  
Vol 6-8 ◽  
pp. 631-638 ◽  
Author(s):  
M. Thome ◽  
Gerhard Hirt ◽  
B. Rattay

The continuing miniaturization of production systems and products poses a challenge for metal forming technologies to produce precise small scale products with microscopic geometric details. Thin metal plates with channel structures are considered to be typical examples for microfluidic applications [1,2]. In this study the coining process of sheet metal to produce channel and rib structures is examined in terms of geometrical die parameters and tool design. For this reason extensive experimental series and numerical simulations have been realized and evaluated.


Author(s):  
Teklu Gebretsadik ◽  
Dinku Negash

The study was carried out in selected districts of Gedeo zones of southern Nation nationality and people’s regional state: such as Wonago, Kochere and DillaZuria/chichu/ districts. The objective of the study was to asses production systems, opportunities and constraints of apiculture farming in Gedeo zones of SNNPRs. Beekeeping is a long-standing practice in the study districts and appears as ancient history of the country as a whole. A cross sectional study, in which 90 households were purposively included and conducted in selected district to assess the current beekeeping practices, production potentials and production constraints. Most (72%) of the beekeepers in the study area have owned only traditional hives and produce honey for home consumption. The beekeeping practice was dominated by male.  Despite the area have  production constraints, the area opportunities like existence of large sized natural forest and artificial forest, due attention provision from regional, federal and local government and nongovernmental organizations, yearly flowering and variety floral availability, some small scale farmers highly experienced in apiculture farming, market access and high demand of apicultural products at nationally and international level. Therefore, Designing effective honeybee pests and predators controlling methods, Introduction of full package improved beekeeping technologies with adequate practical skill training on all bee keeping trends and queen rearing practices promoting beekeepers important indigenous knowledge, Producing areal major honeybee plants in large scale, Avoiding discarding of bee colonies after honey harvest, Availing the strategies to support farmers with beekeeping business support services, Improving pre- and post-harvest handling of bee products and Improving the utilization of stingless bee’s resources, without damaging the colony is important to make the honey production system in the area more economical, so as to enhance bee products for national and international need.


Proceedings ◽  
2021 ◽  
Vol 68 (1) ◽  
pp. 20
Author(s):  
Jaqueline Rodriguez ◽  
Mario Morales ◽  
Hernan Cañon-Jones

Goat production in Chile is carried by small-scale farmers obtaining milk and cheese as the main products. The welfare of goats under these types of production systems is currently unknown and no appropriate validated operational welfare indicators are currently available. We took the tasks of identifying operational welfare indicators and validating them with all stakeholders. A total of 37 operational welfare indicators were obtained. The use of these validated indicators and the welfare score is appropriate to Chilean goat production systems and may successfully increase the sustainability of production and farmers in Chile.


Author(s):  
Constanza Gutiérrez-Gómez

Abstract The livestock sector faces an important challenge in the medium and long term since it must satisfy an increasing demand for animal products as a result of the increase in population and the world economy but safeguarding natural resources and at the same time minimizing the environmental contamination, especially the greenhouse gas (GHG) emissions attributed to livestock husbandry. For Latin America and the Caribbean (LAC), this becomes more relevant given the importance of the sector for the food security of rural communities, particularly for small-scale producers. In this manuscript, we address the main challenges of LAC in this context, from a global perspective that includes the demographic, economic, cultural, and environmental effects. The biggest global challenge for the LAC livestock sector for the coming decades is how to satisfy the growing human demand for animal protein in a sustainable way maintaining the food security of their communities. The efforts to achieve these goals require focusing on improving the efficiency of both animal husbandry and production systems. Therefore, it is necessary to implement technologies of sustainable intensification and it is urgent that those who make political decisions become aware of these issues.


Author(s):  
José-Rodrigo Córdoba

In the era of globalization, the use of technologies like the Internet has created possibilities for individuals to interact across geographical locations. Businesses are grasping the benefits of collaboration and gaining from extending it inside and outside traditional boundaries (Doz & Kosonen, 2007; Evans & Wolf, 2006). It is common nowadays to see a manufacturing process being undertaken by a number of groups from suppliers and several tiers that connect across supply chains (Christopher, 2005). Information systems and information technologies support these activities by facilitating the streamlining and automation of interorganizational information flows (Galliers, 1999). However, despite the increasing availability of systems and technologies to facilitate collaboration and online work, it is far from clear what type of impacts such systems are generating in the work of individuals (Meng & Agarwal, 2007), and how they can support collaboration outside organizational boundaries. To foster collaboration, managers need to enable coordination between groups and to ensure their autonomy, while at the same time guarantee delivery of value to the business. How can businesses develop collaborations and with them obtain competitive advantages? What are the roles that information systems and technologies can play? Evans and Wolf (2006) present two key examples of business collaboration (i.e., the Linux community and the Toyota production systems) which show how traditional business practices need to be challenged if not transformed radically. According to them, organizations should devise simple and modular tasks so that different suppliers (or internal teams) can undertake them with few guidelines. Collaboration needs to be kept simple and open. It needs to be fuelled with a high number of small-scale interactions inside and outside organizations with simple (i.e., standard) technologies to support them. Work needs to be made visible so that information about it can be continuously updated and shared. A number of options (e.g., for production or service processes) needs to be maintained so that innovations do not focus only on what works well at a particular moment in time, but what could be valuable for the future. Organizational structures should be replaced by networks of leaders who act as connectors between individuals. But even if the above strategies are adopted, Evans and Wolf (2006) also highlight that collaboration needs an appropriate work environment where trust is the norm. Trust enables individuals to exchange information and share the intellectual property of their findings. With trust, it is understood that rewards are going to be shared and that it is more important to “get on with the job” in case there are problems to be solved than to claim for individual compensations. Trust will also ensure that even those who compete (inside or outside organizations) can work together to develop solutions to common problems. The more collaborative work is developed, a higher degree of trust exists, and a higher number of opportunities can flourish to convert solutions in innovations. The issue of trust will be revisited later in the chapter.


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