Losobjetivos delestudiofuecaracterizarfisicoquímicamente un efluente salobre de tilapia en producción comercial y evaluar el crecimiento de tres tipos de vegetales herbáceas en acuaponia. El diseño experimental fue completamente al azar. Los intervalos encontrados en los parámetros fueron: temperatura del agua (20-31.5 °C), pH (5.7-7.59), oxígeno (4-5.3 mg L-1), conductividad eléctrica (3.1-8.57 dS m-1), bicarbonatos (0.60-2.60 Meq L-1), cloruros (27-85.7 Meq L-1), sulfatos (2.29-4.16 Meq L-1), amoniaco (2-50 mg L-1), nitritos (0.035-1.84 mg L-1), nitratos (0.10-24.60 mg L-1), calcio (1.02-14.29 Meq L-1), magnesio (3.52-16.17 Meq L-1), potasio (0.15-11.93 Meq L-1), dureza total (280.08-1398.7 mg L-1), sólidos disueltos totales (2109.30-5519.00 mg L-1), relación de absorción de sodio (9.62-32.09 Meq L-1). Los coliformes totales y fecales estuvieron en los límites indicados en la Norma Mexicana NOM-001-ECOL-1996. En acuaponia, las especies Petroselinum purpuratus Harv no resistió a las condiciones del efluente; mientras que, Plectranthus amboinicus (Lour.) Spreng, presentó menor altura en comparación con la siembra tradicional. En contraste tanto en acuaponia como en siembra tradicional la Mentha X verticillata L. observó un buen crecimiento.
This study documents the socioeconomic impact of an innovation based on the marketing of live aquaculture products in rural communities as the Live Tilapia Points of Sales (LTPOS). A case study research conducted where the participatory strategy of "Simultaneous Production Growth Groups" (SPGG) was applied for technology innovation, which includes technology modules, organizational strategy and operational management. The results were evaluated socially and economically. In 14 months, 3531.50 kg of live tilapia were distributed in four local places for sale and self-consumption. The system obtained a BCR of 1.23 and offered as well to the rural population an alternative of fish consumption in better freshness conditions than the regular fish supply. It brings up an extra income to the main market chain participants and development of aquaculture capabilities. Therefore, the LTPOS is a viable option for diversifying livelihoods and improving regional rural population income.
<p align="LEFT"><strong><span style="color: #211d1e; font-size: xx-small;"><span style="color: #211d1e; font-size: xx-small;">Los Grupos Ganaderos de Validación y Transferencia de Tecnología (GGAVATT), se han evaluado en términos técnicos, productivos y económicos, pero existen pocos estudios sobre los aspectos sociales que influyen en la adopción de tecnología. Esta investigación tuvo como objetivo conocer los cambios en la estructura de la red, en las interacciones sociales y las características socioeconómicas de los productores que implementaron el modelo GGAVATT y su relación con la adopción de tecnología. La hipótesis planteada fue que los cambios en la adopción de tecnología en productores que implementaron los GGAVATT están influenciados por cambios en la estructura de la red, las interacciones sociales y las características socioeconómicas. Se entrevistó a 26 productores de los GGAVATT "Tepetzintla", "Vía Corta" y "Caprinocultores Unidos Región Montañosa de Veracruz". Se encontró que la adopción de tecnología estuvo asociada al incremento del tamaño de la red e interacciones sociales, y con pocos cambios en los actores centrales. La adopción de tecnología se asocia positivamente con la educación, y es inversamente proporcional a la edad de los productores; y está influenciada por la escala de producción y manejo. Se concluye que el modelo GGAVATT dinamizó la adopción de tecnología, incrementando la red e interacciones sociales, proceso influenciado por las características socioeconómicas y técnico productivas.</span></span></strong></p>
In the state of Veracruz, Mexico, the performance of the Tilapia (Oreochromis spp.) production system in the domestic market has been declining. Recent production results are lower than those presented in 1999, revealing that the production model adopted and used since 2001 is ineffective as a development strategy. The reason for the failure is that the model considers the technological production process as the central element of aquacultural competitiveness, without considering that production practices, marketing and consumption of goods are performed by individuals who decide and control their actions and are motivated by the values shared with their social group. This interpretation reveals the need for a new complementary conceptual framework, considering the system of production and consumption as a social self-referencing system. Thus, in this article, a model of an agricultural food-chain with a sociopoietic territorial focus on the development of the aquaculture subsector is outlined. The model is based on constructs having the following theoretical dichotomies: territorial agrifood, neo-institutional business, sociopoiesis and individual motivation.
The objective of this paper was to demonstrate that the promotion of aquaculture clusters as a policy option for developing tilapia aquaculture in Mexico, resulting from glocal externalities as competitive advantages to the global market, is necessary to develop further the sector. The farmed tilapia clusters were described using data from the Veracruz Aquaculture Census 2010. We then utilise three theories. Firstly, we focus on North (1955) and Krugman (1995) and find that Economic geography and localisation verified that conglomeration is a function of natural resources and population zones. Secondly, we investigate the Porter value system. Cluster competitive advantage was identified in water availability and water access, electric supply coverage, product presentation and the local market. Thirdly, we apply the Altenburg and Meyer-Stamer (1999) model to identify cluster type, which classifies typology based on natural resource access and the inputs and technologies commercial balance. The Veracruz Tilapia Cluster diagnostic showed an incipient development with remarked opportunity areas, where efforts should be directed, supported by a cluster strategy. However, Mexico and the Port city of Veracruz should diversify their economy. We conclude that adopting a cluster strategy for aquaculture is necessary in Mexico to both increase global competitiveness and to supply the local market.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.