Published in Scientific Papers. Series D. Animal Science, Vol. LIX
Written by Alma LLAMBIRI, Lumturi PAPA
The aim of research was to study, for a period of 24 months, sows’ reproduction and production performances. In total 120 Large White sows and Landrace x Large White crossbred sows reared in the same conditions, were used in the study. Monitored and registered parameters were: the duration of the reproductive cycle; the birth rate and mortality; production efficiency of the sow etc. The crossbred sows (Landrace x Large White) showed: the lowest number of unproductive days, versus Large White sows, respectively 6.24 vs 9.52 and the lowest percentage of mortality respectively 4.31 vs 4.96. The crossbred sows had also the highest number of piglets born alive/sow/year, than pure breed sows, respectively 25.59 vs 24.89, highest number of weaned piglets/sow/year, respectively 10.33 vs 9.38, and highest weight of weaned piglets, reapectively 6.65 vs 6.42. Independently from the genetic type, piglets born from fifth delivery sows, resulted the heaviest at birth and weaning time. Growing photoperiod reduced calving interval, and neonatal deaths.
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