Suplementação de compostos fenólicos para porcas em lactação sobre o desempenho reprodutivo subsequente

Abstract

The objective was to evaluate the influence of phenolic compounds supplementation for lactating sows on subsequent reproductive performance. Initially, 240 sows of a commercial lineage Topigs® TN70, from 1st to 6th parity order, were allotted in a randomized block design, in a 3 x 4 factorial scheme, with 3 levels of phenolic compounds supplementation and 4 parity orders, with 20 replications per treatment. The product supplementation levels were: CF0 – no supplementation; CF200 - supplementation of 200mg of product; CF400 - supplementation of 400mg of product. The animals were divided into 4 experimental groups, considering the parity order: 2nd; 3rd; 4th and 5th;6th and 7th. The total number of piglets, stillborn, mummified and alive piglets were recorded. Supplementation of phenolic compounds for sows in the gestation and lactation phases does not result in better subsequent reproductive performance. Sows of the 4th and 5th parity orders have a higher litter size at birth compared to other parity orders, while sows of the 6th and 7th farrowing orders have a higher litter size and weight at weaning than sows of other parity orders.