The study addresses the relationship between food security and sustainable agricultural production in Ecuador, highlighting the challenges and opportunities for its implementation. Factors such as climate change, poor water resource management and lack of access to advanced technologies negatively affect agricultural production. Climate variability and extreme events such as droughts and floods have significantly reduced the production of essential crops, increasing food vulnerability. The adoption of sustainable agricultural practices, such as soil conservation, integrated pest management and the use of advanced technologies, has been shown to improve the productivity and resilience of the agricultural sector. Public policies, including smallholder support programs and incentives for sustainable agriculture, are essential to promote these practices. International cooperation also plays a crucial role in technology and knowledge transfer. Despite progress, significant challenges remain, such as limited access to financing and regional inequalities, which must be addressed to ensure equitable and sustainable agricultural develop

The study analyzes the influence of agricultural policies on Ecuador's small farmers, highlighting both advances and challenges. Subsidies and technical assistance policies have increased productivity but have disproportionately favored large producers. Small farmers face significant barriers such as limited access to credit, insufficient ongoing technical assistance, market instability and land tenure problems. Despite some improvements in rural poverty reduction, regional inequalities and a notable rural-urban drift persist. To improve policy effectiveness, it is recommended that inclusive policies be designed, technical assistance be strengthened, access to financing be facilitated and rural infrastructure be developed. These measures are essential to promote sustainable and equitable agricultural development, improving the quality of life of small farmers in Ecuador.

Climate change has increased the interannual and seasonal variation in the average temperature and precipitation rate, which determine forage availability globally. Similar patterns of change have occurred in tropical regions, and Ecuador is no exception. This region includes other influencing factors, such as the conversion of tropical forests to extensive pastures. Therefore, this study was carried out to evaluate guinea grass (Panicum maximum) cultivated under silvopastoral systems with different management strategies in both of the seasons of the study region in Ecuador (rainy season and dry season). A randomized complete block design was used for the experiment, with three repetitions and three treatments. Agronomic measures, forage production, chemical composition, animal responses, and soil properties were evaluated. Data were analyzed with the Mixed model of SAS. Differences in all evaluated parameters were observed between treatments, and silvopastoral systems (SPSs) produced better results than conventional grass monoculture. Furthermore, there was a strong seasonal effect on forage production, chemical composition, and soil properties. Therefore, management of Panicum maximum with well-planned grazing can enhance animal responses and help to retain natural resources, lowering the pressure on forests.

"Sinergia Científica: Integrando las Ciencias desde una Perspectiva Multidisciplinaria" es un compendio de estudios que abarcan diversas disciplinas, uniendo la ciencia en un esfuerzo colectivo para resolver problemas complejos. El primer capítulo presenta una innovación en la cuyicultura sostenible, explorando la suplementación alimenticia con harina de amaranto y cúrcuma en cuyes. El segundo capítulo se adentra en el ámbito social, analizando los Derechos Humanos desde la perspectiva de las poblaciones vulnerables. En el tercer capítulo, se introduce un enfoque innovador en ingeniería civil, utilizando polímeros reciclados para el diseño de revestimientos de cunetas. El cuarto capítulo examina el impacto económico de la facturación electrónica en el sector de imprentas, un avance tecnológico crucial en la era digital. Finalmente, el quinto capítulo explora la influencia del neuromarketing en la rentabilidad de las PYMES, uniendo la neurociencia y el marketing para optimizar las estrategias comerciales. Este libro es un testimonio de cómo la integración multidisciplinaria puede conducir a soluciones innovadoras y sostenibles.

La rápida expansión de la frontera agrícola como consecuencia desmesurada de la deforestación y cambios antropogénicos a nivel mundial, es un tema de preocupación por la comunidad científica internacional. Además, frente a una lucha contra el cambio climático por efecto de la ganadería, una de las principales estrategias para la mitigación de gases de efecto invernadero, lo constituyen alternativas sostenibles si uso de productos con alta huella de carbono, revalorizando, además, los recursos locales. En el caso de la zona norte de Ecuador, a pesar de los limitados atributos respecto a gradiente de fertilidad de los suelos, la cría de ganado ya sea de leche y/o doble propósito representa uno de los eslabones más fuertes dentro de la economía de las familias. Por lo tanto, es menester investigar alternativas de producción que nos permitan conservar los recursos naturales dada la fragilidad de estos ecosistemas megadiversos. Mediante este libro se plasma que el uso de sistemas ganaderos convencionales, degradan los recursos naturales con mermas significativas de la productividad, así como bajo réditos económicos. En consecuencia, la implementación de sistemas silvopastoriles como alternativa tecnológica de fácil instalación, es sin duda el camino para alcanzar sistemas ganaderos más eficientes, amigables con el medio ambiente, diversificando además los ingresos económicos de la población.

Grazing management is a key element to optimize growth cycle of forages, which are enhanced in their chemical composition leading to the reception of greater nutritive values for feeding ruminants. Several studies have showed that the accuracy and precision of the feeding values are critical to achieve this goal, unfortunately, in Ecuador there are not referential data, despite of Megathyrsus maximus is the most forage used by livestock farmers. The predominant aim of the current study was to approach and estimate the feeding values by INRA feed evaluation system of Tanzania grass (Megathyrsus maximus) subjected at different grazing strategies. The statistical design was a randomized complete block, with a 3 × 2 factorial arrangement. Where the treatments were combinations of three grazing frequencies (GF) (30 d; termed GF30, 45 d, GF45 and 60 d, GF60) and two cutting heights (CHs; 30 and 45 cm). The agronomic data did not vary by season effect (P = 0.24 to 0.82), but GF60 had higher plant heigh and dry matter (DM) contents (P < 0.001) than other GF, although with less tiller populations (241 vs. 304 tiller/m2). By CHs effect, Tanzania grass at 30 cm had a greater DM content than 45 cm of CHs (5565 vs. 4221 ± 603 kg/ha-1; P = 0.073). All chemical determinations were affected by GF, CHs and their interaction (P < 0.001 to 0.004) with the exception on ADF between CHs (P = 0.50). Whereas only the CP and ADF values were conditioned by season effect (P = 0.001 to 0.011). Subsequently, Tanzania grass subjected at moderate rest periods and low defoliation intensities showed greater energy and proteins values than traditionally used GF60. Based in these findings, the defoliation frequency had influence on agronomic and chemical characteristics, whilst the feeding values was mainly affected by grazing intensities and weather conditions. So, the best combination regarding nutritive values should be at GF30 and GF45 combined with 45 cm of CHs.