“Digestibilidad de dietas con diferentes niveles de fibra soluble e insoluble en cuyes (Cavia porcellus) durante la etapa de post destete”

Digestibility allows for determining the utilization of nutrients to meet the animal's nutritional needs. The objective of this research was to evaluate nutrient digestibility in post-weaning guinea pigs fed different levels of soluble and insoluble fiber. Forty A1- type male and female guinea pigs were used, weaned at 15 days of age with an average weight of 272 ± 20 g, housed in galvanized mesh metabolic cages measuring 51x42x26 cm. They were randomly distributed into four treatments with different levels (low/high) of soluble fiber (4.48% - 12%) and insoluble fiber (28% - 35.8%). A randomized block design with a 2x2 factorial arrangement was applied. The digestibility of dry matter, organic matter, ether extract, neutral detergent fiber, acid detergent fiber, and lignin was evaluated. The data were analyzed using an analysis of variance (ANOVA) through the MIXED SAS procedure, where the main sources of variation were the experimental diets with the levels of soluble and insoluble fiber and their interaction, and the random factor was the litter nested within the treatment. For mean comparisons, a protected T-test was applied. The results showed a significant difference (p=0.001) in the digestibility of dry matter and organic matter with the inclusion of low levels of insoluble fiber, for acid detergent fiber with the interaction of low soluble * high insoluble fiber, and for lignin with high insoluble and low soluble fiber levels. Meanwhile, the digestibility of neutral detergent fiber showed no significant difference (p=0.558), and ether extract showed a trend (p=0.089) with better digestibility at high levels of insoluble fiber. It is concluded that the inclusion of insoluble fiber in the diet of post-weaning guinea pigs has a positive effect on nutrient digestibility.

• Autor principal: Prado Paladines, Hania Soledad (author)
• Formato: bachelorThesis
• Lenguaje: spa
• Publicado: 2025
• Materias: CAVIA PORCELLUS; DIGESTIBILIDAD; FIBRA INSOLUBLE
• Acceso en línea: https://dspace.unl.edu.ec/jspui/handle/123456789/32244