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Analýza užitkových vlastností chovu prasat zařazeného do kontroly užitkovosti
JELÍNKOVÁ, Lenka
The aim of the diploma thesis was to analyse reproductive and productive parameters at a particular pig farm participating in the performance testing. The monitoring took place between years 2019 to 2021. The sow reproductive traits included sows of the Czech Large White - CLW (977 litters), CLW x CL (CL = Czech Landrace) (616 litters), Duroc (169 litters), Pietrain (156 litters), 125 litters by boars D x LWSL (Large White - sire line) and 146 litters by boars Pn x LWSL. Higher number of total born (15.6 vs. 15.4 pcs), live-born (14.5 vs. 14.3 pcs) and weaned piglets (13.5 vs. 13.2 pcs) was confirmed within maternal breeds in CLW x CL sows, compared to CLW sows. The highest number of total born, live-born and weaned piglets was confirmed within the paternal breeds after boars D x LWSL (11.2 pcs, 10.3 pcs and 9.6 pcs). The lowest fertility level was found out at the Pietrain breed (10.0 total born, 9.2 live-born and 7.7 weaned piglets). Boars of the CLW (1,448 pcs), Duroc (434 pcs), Pietrain (339 pcs), D x LWOL (368 pcs) and BO x Pn (363 pcs) and gilts of the CLW (3,479 pcs), Duroc (487 pcs) and Pietrain (343 pcs) were analysed in field test. The highest average daily gain from the birth was achieved by boars LWSL x Pn (730 g), the lowest average backfat thickness was achieved by boars D x LWSL (5.2 mm) and the highest lean meat content was achieved by boars Pietrain (62.2%). The best performance traits in the field test were recorded in boars in 2020. The highest value of the average daily gain from the birth was in CLW gilts(659 g) and the lowest average backfat thickness (5.2 mm) and the highest lean meat content (62.5%) were in Pn gilts. The best results of the field test of gilts were reached in 2021.
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