Ciencias Agropecuarias

URI permanente para esta comunidadhttp://repositorio.uta.edu.ec/handle/123456789/870

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Tiene archivos: SíTema: search.filters.subject.CAPRINOS

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  • Miniatura
    Item type:Ítem,
    Identificación y prevalencia de artrópodos ectoparásitos asociados en caprinos de raza criolla en la provincia de Santa Elena
    (2024-08)
    Chico Mayorga, María Fernanda
    ;
    Almeida Secaira, Roberto Ismael
    Goat breeding has been gaining strength in recent years in the country. In order to be successful in animal production, many factors must be taken into account. For example, one of them is ectoparasites. This problem can cause diseases and complications in animals and therefore ends in economic losses. Therefore, the research was carried out with the objective of identifying the prevalence of ectoparasites in Creole goats in Río Verde, province of Santa Elena. Ectoparasites were collected from 52 female goats, and then the samples were placed in jars with 70% alcohol to be transported to the laboratory where the identification analysis was carried out using a stereoscope. The result was the presence of the genus Rhipicephalus linnaei, a type of tick not previously described in Ecuador and known to attack the canine species. In addition, in terms of prevalence, it was determined that there is a 15% infestation of ectoparasites in 8 of 52 goats. In conclusion, it is inferred that the genus Rhipicephalus linnaei has evolved looking for larger hosts such as goats and has spread to reach Ecuador.
  • Miniatura
    Item type:Ítem,
    Evaluación de extractos tánicos de Caesalpinia spinosa sobre la calidad en la curtición de pieles caprinas y bovinas
    (2024-08)
    Muenala Guagalango, Hugo Lizandro
    ;
    Aragadvay Yungán, Ramón Gonzalo
    In the elaboration of the following study, the aim was to search and prove that the use of ionized tannins extracted from caesalpinia spinosa at a certain concentration can serve as a tanning source, in order to replace chromium, the extract was used as a base in an aqueous medium at 5% dilution, where a percentage of purity of 55.97% concentration was obtained, This medium was the one with the best reference values, so that after proceeding with the tanning process, good results were obtained in terms of physical (strain, elongation) and sensory (softness, fullness, roundness), reaching optimal margins for sale and use, and thus avoiding the harmful and polluting effects of chromium to the environment, in addition to the fact that through the use of this extract, production costs were reduced by almost half, thus leaving higher returns.