Efecto de la exposición de luz artificial en parámetros productivos de pollos de engorde de la línea Ross en el departamento norte de Santander.

Abstract

In poultry farming, one of the factors that must be taken into account when carrying out a production system in broilers is the photoperiod, as it is part of the management and affects the welfare of the animals. With the aim of evaluating the effect of artificial light exposure, ninety (90) broilers of the Ross line were allocated, distributed in completely randomized blocks in three (3) treatments with three (3) repetitions each: treatment one - T1 (chickens exposed to 8 hours of artificial light); treatment two - T2 (chickens exposed to 4 hours of artificial light); and treatment three - T3 (chickens without exposure to artificial light), who during 42 days of study had a constant control in the lighting during the night hours, presenting differences in the results which were taken weekly through weighing; determining that there were no significant differences between treatments (p> 0.05) for the productive parameters evaluated (feed consumption, weekly weight gain (GPS), feed conversion (CA), feed efficiency (EA) and carcass yield). With respect to the economic analysis, treatment three (T3) presented the best profitability at the end of the investigation with 59% and a profit margin of 37% on production costs; however, treatment 2 (T2) presented a profitability and profit margin similar to that of T3.