Abstract
The objective of this study was to evaluate the effect of bump feeding for the final third of gestation on the performance of sows and their litters and on colostrum nutritional quality. Seventy hyperprolific sows of a commercial genetic line were selected according to their reproductive history. Sows were assigned to two treatments, no increase of feed (control, 2.4 kg/d of 3.25 Mcal/kg diet) or with increased feed (Bump feeding, 3.0 kg/d) from 81 days of gestation to farrowing with 35 replicates per treatment. No differences were observed for treatments on sow weight, weight gain, piglet birth weight, litter birth weight, coefficient of variation, number of total births, stillbirths, live births, and placental efficiency. The treatments also did not influence the calcium, phosphorus, ash, lactose, crude protein, zinc, ether extract, and crude energy content of the colostrum. Based on the results of the present study, the use of bump feeding in the final phase of gestation of sows becomes questionable, due the lack of effect on sow and litter performance.
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