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Effects of performance test of Polish Large White and Polish Landrace gilts in relation to their subsequent reproductive performance

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Bocian M., Jankowiak H., Kapelanski W., Debreceni O.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

2016

tom 55[1]

The analysis covered performance test results and reproductive performance of 198 Polish Large White (PLW) sows and 96 Polish Landrace (PL) sows from a pedigree-breeding farm of the region of Pomerania and Kujawy. 1188 litters produced from the PLW sows and 576 litters produced from the PL sows were tested (six consecutive litters). Reproductive performance of the PLW and PL sows in the subsequent six litters taken as a life reproductive efficiency demonstrated higher indicators of reproductive traits than national data. The PLW sows were characterized by the highest number of piglets at 1 and 21 days in the 3rd and 5th litter (P ≤0.01) and a ca. 7-day lower farrowing interval (2nd and 3rd litter) in comparison with the PL sows. The analysis demonstrated a negative correlation between the age of the first farrowing and the standardized daily gains (P ≤0.01) in the PLW sows and a positive correlation with the body lean percentage (P ≤0.05), as well as a lower number of young boars in the litters of those sows which were characterized by a higher meat content (P ≤0.01) and a higher selection index value (P ≤0.05). When it comes to the PL sows, the age of the first farrowing was positively correlated with the standardized backfat thickness (P ≤0.01).

Ograniczanie wyników

1 Annals of Warsaw University of Life Sciences - SGGW. Animal Science

1 Bocian M.

1 Debreceni O.

1 Jankowiak H.

1 Kapelanski W.

1 2016

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Effects of performance test of Polish Large White and Polish Landrace gilts in relation to their subsequent reproductive performance