Sustitución con suero fresco en dietas comerciales porcinas en terminación

Abstract

The trial consisted of substituting traditional ingredients such as corn and soybean derivatives for fresh whey in fattening pigs to reduce feed cost without altering productivity. For this purpose, 16 animals between 50 and 100 kg live weight were used for 60 days, in two treatments and two replicates, one control (CT) and another with whey (SW), replacing the base diet by 40.12%. Productivity was evaluated from average daily gain (kg/day), initial and final live weight (kg) and feed conversion, as well as the health status of the animals fed with whey. No significant differences (p> 0.05) were observed between treatments for average daily gain (CT: 0.840 vs SW: 0.834), final weight (CT: 100.24 vs SW: 100.23) and feed conversion (CT: 2.74 vs SW: 2.73). Meanwhile, the health status of the animals was not modified by the whey substitution. It is concluded that substitution with fresh whey in a traditional fattening ration allows maintaining the same productive values, without causing diarrhea and reducing the level of use of corn and soybeans by 38.3 kg and 15.5 kg per animal respectively during the period analyzed.