Efecto de cinco dietas con diferentes proporciones de fibra detergente neutro y almidón en el rendimiento productivo, comportamiento ingestivo y peso de órganos digestivos del cuy (Cavia porcellus)

Abstract

El experimento tuvo como objetivo determinar los efectos de la relación de fibra detergente neutro (FDN) y almidón en la dieta sobre rendimiento productivo, comportamiento ingestivo y peso de los órganos digestivos del cuy (Cavia porcellus). Se prepararon cinco dietas isonitrogenadas variando la proporción FDN:almidón (PFA): 8.1, 3.5, 2.0, 1.3 y 0.8. Se usaron 160 cuyes de 28 días de edad alimentados durante siete semanas. El aumento de peso y el índice de conversión alimenticia en los grupos PFA 2.0 y PFA 1.3 fueron mejores que los demás grupos (p<0.05), acompañado por un mayor rendimiento de carcasa (p<0.05). El aumento de peso en PFA 3.5 fue mayor que en los grupos PFA 8.1 y PFA 0.8 (p<0.05). La ingesta relativa de materia seca (MS) y la ingesta de FDN en el grupo PFA 8.1 fue la más alta; sin embargo, la ingesta de energía digestible en PFA 8.1 fue la menor (p<0.05). El peso de ciego fue mayor en PFA 8.1, PFA 3.5 y PFA 2.0 que en PFA 1.3 y PFA 0.8 (p<0.05). La ingesta de MS en PFA 0.8 fue la menor. Los resultados indican que la proporción óptima de FDN:almidón en las dietas de cuyes en crecimiento está entre 1.3 y 2.0.

The Nutritional Value of Biowaste Bovine Slaughterhouse Meals for Monogastric Species Feeding: The Guinea Pig as an Animal Model

“…These results are like those reported in other studies [26], and what is important is the acceptance of these feeds by the guinea pigs, which stimulates weight gain and performance [62].…”

Effect of Agroindustrial Waste Substrate Fermented with Lactic Acid Bacteria and Yeast on Changes in the Gut Microbiota of Guinea Pigs

“…Cornejo [ 26 ] and Miranda [ 7 ] also reported positive effects on weight gain with the use of probiotics obtained from mixtures of lactic acid bacteria and/or yeasts in the diet of rabbits and pigs, mentioning that the increase in weight gain in the animals is due to the increase in enzyme activity caused by the probiotics. Therefore, it could be suspected that the use of agroindustrial waste substrate fermented with lactic acid bacteria and yeasts improves nutrient absorption and leads to increased weight gain in guinea pigs [ 8 , 41 , 42 ].…”

“…According to other reports, the use of mixed cultures of lactic acid bacteria and yeasts, usually Lactobacillus alone or in combination with Bifidobacteria , Enterococci or Saccharomyces included in animal diets, reduces the risk of diarrhea associated with E. coli , Salmonella spp., among others [ 15 , 30 ]. While it is true that there is heterogeneity of results in terms of reducing diarrheal disorders in animals, there is insufficient evidence to say whether the effect varies systematically between the populations of microorganisms introduced in the probiotics used [ 8 , 16 , 30 ].…”

“…This scenario could be observed in the present study in guinea pigs that received probiotics as a substrate for microbial additives in their diet, where in samples from the intestinal scraping cultured on MRS and M17 Agar, Nutrient Agar and Sabouraud Agar, higher numbers of administered microorganisms ( Lactobacillus , Sacharromyces and Kluyeveromyces ) grew with the diet, and decreases in the population of E. coli and other enterobacteria were not demonstrated in the study ( Table 7 ). A reduction in pathogenic microorganisms decreases the risk of infection in animals consuming probiotics in their diet [ 1 , 8 ]. A reduction in the number of E. coli and Salmonella sp.…”

“…These microbial additives have beneficial properties for animal health and their main action on the host is to improve weight gain, increase feed conversion and modify the intestinal flora [ 6 , 7 ]. They also help to make the animal more resistant to disease and reduce the use of antibiotic growth promoters, so it is important to include them in the diet of monogastric or ruminant animals [ 8 , 9 ].…”