Evaluación del peso y tiempo de almacenamiento en huevos de gallina criolla (Gallus gallus) sobre los índices de incubación

Abstract

The aim of this investigation was to evaluate the weight and storage time in Creole hen eggs (Gallus gallus) on incubation indices. For this objective, 810 eggs were collected from a batch of 54-week-old Creole breeding hens. In the study, 9 treatments resulting from the combination of three weight ranges (40-50 g, 51 -60 g and 61-70 g) and three storage times (5, 9 and 13 days) were evaluated using a Random Block Design (D.B.C.A) with a 3x3 factorial arrangement, with 3 repetitions per treatment, giving a total of 27 experimental units and integrating 30 eggs in each experimental unit. The eggs were collected in the morning and afternoon to later be weighed and distributed in the previously mentioned treatments. The best results with the same level of statistical significance for hatchability were T1 (40-50 g eggs, stored for 5 days) and T2 (40-50 g eggs, stored for 9 days), presenting values of 84, 44% and 82.22% respectively. With respect to viability, the best result was obtained with T1 (96%) and in the same way for late embryonic mortality a reduced value was registered with said treatment. Regarding the birth weight of all birds, a higher weight was obtained with T7 (61-70 g eggs stored for 5 days). Regarding the percentage of first class birds, better results were obtained with T1 (83.33%); while, in second-class birds, there were no significant differences between the means of the treatments.