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  • 1
    Publication Date: 2020-11-07
    Description: A study was conducted at the Escuela Superior Politècnica de Chimborazo, Ecuador, to evaluate the influence of litter size of guinea pigs (Cavia porcellus) on their development and to establish the economic profitability of the production system. Forty-eight animals were used, distributed into litters of two, three, and four rodents per litter, with a balanced diet and green fresh alfalfa for the weaning, growth, and fattening stage, the rodents and litters were randomly selected, applying the statistical model completely randomly and evaluating different variables across 120 days. The litters of three guinea pigs obtained the best productive responses and economic profitability. With respect to sex, the males presented better productive behavior, greater economic increase, and less cost, evidencing that mixed feeding influences the number of guinea pigs per birth in terms of growth and development. The results serve to improve guinea pig meat production for the rural population.
    Electronic ISSN: 2076-2615
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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  • 2
    Publication Date: 2021-02-02
    Description: 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.
    Electronic ISSN: 2077-0472
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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  • 3
    Publication Date: 2024-02-27
    Description: The rapid expansion of the agricultural frontier as a consequence of deforestation and anthropogenic changes worldwide is a matter of concern for the international scientific community. In addition, in the fight against climate change due to livestock farming, one of the main strategies for mitigating greenhouse gases is the use of sustainable alternatives if products with a high carbon footprint are used, while revaluing local resources. In the case of northern Ecuador, in spite of the limited soil fertility gradient, dairy and/or dual-purpose cattle raising represents one of the strongest links in the family economy. Therefore, it is necessary to investigate production alternatives that allow us to conserve natural resources given the fragility of these megadiverse ecosystems. This book shows that the use of conventional livestock systems degrades natural resources with significant losses in productivity, as well as low economic returns. Consequently, the implementation of silvopastoral systems as an easy-to-install technological alternative is undoubtedly the way to achieve more efficient and environmentally friendly livestock systems, while diversifying the economic income of the population.
    Description: Published
    Description: 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.
    Keywords: Amazonia ; Emisión de gases de efecto invernadero ; Sistemas convencionales ; Sistemas silvopastoriles ; bic Book Industry Communication::R Earth sciences, geography, environment, planning
    Language: Spanish
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