Probiótico para suínos nas fases de maternidade e creche

Abstract

This study evaluated the supplying of a biological modulator, based on bacteria and yeast, either on the floor or in the diet, as an alternative to the direct-fed microbials, on pig performance. Two experiments were carried out, one at lactation and the other at weaning period. In the first experiment, a total of 234 DanBred sows were selected. A completely randomized block design was used. The treatments were: T1 – Control (conventional lactation diet, without biological modulator); T2 – Floor, with the supplying of the biological modulator on the floor; T3 – Diet, with the supplying of the biological modulator directly on the sows‟ feeder. The lactation diet was supplied twice a day, beginning when the sows were transferred to the nursery room. The following variables were studied: total number of newborn pigs, alives, stillborns and weaned per sow, piglets weight at birth and at weaning. A significant effect of the treatments on the total number of piglets at weaning was observed. The feeding of the biological modulator promoted higher number of weaned pigs (P<0.10) than the other treatments (control and floor). No significant difference among treatments was observed for the other variables (P>0.10). In the second experiment, 2160 pigs were chosen based on initial weight and were allotted to the pens. A completely randomized block design was used. Three treatments were studied: T1 – Control (conventional piglets diet, without the biological modulator); T2 –Floor, with the supplying of the biological modulator on the floor; T3 – Diet, with the supplying of the biological modulator directly on piglets feeder. The following variables were evaluated: weight of piglets at the beginning and at the end of the experiment, coefficient of variation of the piglets‟ weight, weight gain, feed intake, feed conversion, frequency of diarrhea, and mortality. The utilization of the probiotic did not affect any of the variables evaluated (p>0.10). In conclusion, the supplying of probiotic bacteria in the diet of lactating sows increases the number of piglets at weaning.