The experiment was conducted to evaluate the performance and biochemical parameters in weaned piglets using alternative supplements to replace antibiotics. A total of 480 male pigs were used, randomly distributed in delineation with five treatments. The feed was based on corn, soybean meal and a commercial core for piglets. The treatments were T1: diet without supplements or basal diet, T2: basal diet with antibiotics, T3: basal diet with added probiotic, T4: basal diet with added probiotic and T5: basal diet with addition of symbiotic. In the experiment we evaluated performance characteristics, body weight, weight gain, feed intake and feed conversion. In the second part of the experiment, we evaluated the biochemical parameters of piglets used in the first experiment, fifty blood samples, ten samples of each treatment, were taken, and after separation of the clot, the serum was frozen at -20°C. Subsequently we analyzed the serum levels of total protein, albumin, globulin, albumin/globulin, ALP, creatinine, alanine aminotransferase, aspartate aminotransferase, gamma glutamyltransferase, cholesterol, urea, calcium, phosphorus and calcium/phosphorus ratio. No significant differences in biochemical parameters or in the performance of piglets submitted to different diets were found.
swine; performance; avilamycin; mananoligossacharid; Saccharomyces cerevisiae
