Apparent and true digestibility of palm oil (Elaeis guineensis), chicken oil, and Sacha inchi oil (Plukenetia volubilis) with three inclusion levels in diets for broiler chickens

Abstract

With the intention of evaluating the fecal and ileal digestibility of crude palm oil (Elaeis guineensis), chicken oil, and Sacha inchi oil (Plukenetia volubilis) at inclusion levels of 3%, 6%, and 9%, a total of 480 female Ross 308 broiler chickens were used. Digestibility was assessed at 21 days of age for both the diets and the fat sources. Total collection or the indicator method with chromium oxide was used for fecal digestibility, while the indicator method was used for ileal digestibility. The inclusion of the three levels of the evaluated sources was based on the substitution method of the core composed of corn and soybean. A fat-free diet was used to estimate the true digestibility of fat in the evaluated sources. The experiment was conducted in a 3*3 factorial arrangement. The treatments with the sources and inclusion levels were randomly assigned. Each treatment had six repetitions with eight birds per repetition. The results showed that the apparent digestibility of fat in the experimental diets was affected by the source and the interaction between the source and inclusion level. Only in the fecal digestibility obtained through the total collection technique, the inclusion level of the source in the diet did not have an effect. In the digestibility of the evaluated sources, it was determined that as the inclusion level of the source increased, the true digestibility of the source also increased.