Evaluación del extracto microencapsulado de jengibre (Zingiber officinale) sobre los índices productivos en pollos de engorde

Abstract

The objective of this research was to evaluate the inclusion levels of microencapsulated Zingiber officinale (0.03, 0.035 and 0.04%) and its effect on the productive indexes in the rearing of broilers, as well as the cost benefit and Ingalls-Ortiz index per treatment; the experimental design used in this trial was a completely randomized design (DCA) with four treatments, one behaving as a control and 10 repetitions with a total of 10 experimental units (400 animals in total) with the respective Tukey analysis at 5 %; The preparation of the microencapsulation consisted of two phases, the first in which the Zingiber officinale was macerated with 99.9% ethyl alcohol in a 2: 1 ratio and left to stand in an amber bottle for 72 hours, obtaining a ginger extract, the same that was taken to the rotavapor; In the second phase, maltodextrin and gum arabic were used as microencapsulating components of the pure extract, which when homogenized in equal proportions with the extract and subsequent spray drying at an inlet temperature of 150 ˚C and an outlet temperature of 85 ˚C ; The microencapsulated product is obtained which was added to the animals, aided by a micro mixer in the concentrations of 0.03%, 0.035% and 0.04% by Tn to the diet, evaluating the three stages of development of the broiler chicken as follows: initial (0 at 14 days), growth (15-28 days) and final stage (29-46 days), it is concluded that the addition of Zingiber officinale in the first stage did not show a significant difference, in the growth stage the T1 (0.03%) the food consumption variable was highly significant with a value of 1342.70 in T1 (0.03%), significant in the variable weight gain 948.52 and food conversion of 1.42; the final stage behaved with the best productive performance to the addition of both 0.03% and 0.035%. being the best the one that corresponds to T2 (0.035%) with a weight of 1598.47, final weight of 2769.39 and a feed conversion of 1.84.