Abstract
The aim of the study was to evaluate productive and reproductive performance of Prestice Black‑Pied sows including losses of piglets from birth to weaning in conditions of two farms. The experiment involved one hundred sows of Prestice Black‑Pied pig from the 1st to the 7th parity (50 from farm A and 50 from farm B). The evaluation of productive parameters revealed a highly statistically significant difference (P ≤ 0.001) between gilts of the observed farms in percentage of lean meat. Backfat thickness was 0.19 cm lower in gilts from the farm A, which is a very highly statistically significant difference (P ≤ 0.001). The evaluation of reproductive performance showed, that age at the time of the first insemination and farrowing was significantly higher (P ≤ 0.05) in gilts from the farm A compared to gilts from the farm B by 38 days on average. The analysis also indicates that there was no significant difference in length of gestation, total number of piglets and numbers of live-born and reared piglets between the sows of the evaluated farms. A highly statistically significant difference (P ≤ 0.01) was found in number of stillborn piglets. Interval length was significantly longer (P ≤ 0.05) in sows from the farm A, by 14.29 days. The evaluation of losses of piglets revealed a significant difference (P ≤ 0.05) between the farms in favor of piglets from the farm A.
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