Estudio del efecto del tamaño de partícula de la dieta sobre parámetros digestivos de cuyes

Organ development in guinea pigs may be subject to the quality and quantity of nutrients used as well as the particle size of the feed. The objective of the present study was to evaluate the effect of diet particle size on the digestive parameters of guinea pigs (Cavia porcellus), thirty 15-day-old weaned female A1-type guinea pigs, with an average weight of 344 g distributed randomly in individual galvanized mesh cages with dimensions of 42x26x15 with their respective feeder and drinker, we evaluated three treatments with fine, medium, and coarse particle sizes, we applied a completely randomized design, the study variables were live weight, the absolute and relative total weight of the digestive tract, stomach, small intestine, and cecum, the absolute and relative length of the small intestine, pH of the stomach, and cecal contents, we processed the data using the Statistical Package (SAS) 2023 and protected T-test for comparison of means. The results showed no statistical difference in the variables of absolute (P=0.577) and relative (P=0.872) weights of the total digestive tract, stomach, and small intestine, as well as in absolute and relative length of the small intestine (P=0.837), pH of the stomach and cecal contents (P=0.758). The relative weight of the cecum presented a significant difference (P≤ 0.032) by reaching a weight of 10.2% with the coarse particle size. We concluded that the particle size did not influence the morphometric characteristics of the digestive tract and its segments, except for the weight of the caecum, which, by the coarse particle size.

• Hoofdauteur: Sánchez Ponce, Estefany Pamela (author)
• Formaat: bachelorThesis
• Taal: spa
• Gepubliceerd in: 2023
• Onderwerpen: CUY; MORFOFISIOLOGÍA DIGESTIVA DEL CUY; CAVIA PORCELLUS
• Online toegang: https://dspace.unl.edu.ec/jspui/handle/123456789/28411