Efecto de la utilización de sustratos glucogénicos, sobre los parámetros productivos de gallinas ponedoras comerciales.

Abstract

This research was carried out at the "Avícola Don Guillo," located in the Chambo City, where the effect of the use of two glucogenic substrates in commercial laying hens of the Lohmann Brown line of the third production cycle was determined. We worked with 400 layers during 70 days of experimentation where a completely randomized design was used in a combinatorial arrangement of two factors plus a satellite control treatment, where factor A corresponded to the use of glucogenic substrates and factor B to the energy concentration (35000 and 70000 kcal), each treatment worked with four replicates, with a size of 20 hens per experimental unit. The productive parameters evaluated were calculated from daily production and egg weight, which were: initial weight, final weight, egg production/bird/housed, egg production/bird/day, feed consumption, feed conversion, egg mass, egg weight, laying percentage, production percentage/bird/housed (PAA), egg uniformity and mortality; as an economic variable: Profit/Cost. The highest final weight of 2196 g was recorded by energizer 1 with 70000 kcal (A1B1). The control group reported the highest feed consumption: 113.85 g; energizer 2 of 70000 kcal (A2B1) presented the best egg weight: 66.47 g; energizer 1 stood out for egg mass with 55.97 g, egg production/bird/litter 59.34; 59.78 eggs/bird/day, percentages of lay and PAA with 85%. Energizer 1 of 35,000 kcal recorded the best uniformity with 83%. The best benefit/cost was obtained by treatment A1B1 with 1.21 USD. The use of glycogenic substrates positively influenced the productive parameters of commercial laying hens. Therefore, it was recommended to use energizer 1 in the diet of layers or other species of zootechnical interest.