The present investigation was carried out with the objective of evaluating the effect of the use of an energy supplement in the starter diet for commercial line piglets; Located in the Chao district; also, identify the piglets that respond more efficiently to the use of the energy supplement; Calculate the production and productivity of commercial line piglets at the start stage (07-28 days) per treatment, the research will be a Completely Random Design (DCA), data that were analyzed using Excel 2019 Software. 60 piglets were evaluated from the 7 days of age of which were divided into three treatments: T1 (4kg of energy supplement) T2 (3.5 of energy supplement) and T3 (Witness) in order to evaluate the following parameters initial live weight, final live weight, gain of weight, food consumption, food conversion, morbidity, mortality and productivity. The results obtained show a significa...