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Chov a vývoj plemene prasat české bílé ušlechtilé
JÁRKOVÁ, Eliška
The aim of this bachelor thesis was to analyse the development of performance traits of the breed Czech Large White in the period from the year 2008 to the year 2020. In nucleus farms the number of sows decreased from 1664 to 1174 (by 29,4%). Certain numbers increased, specifically the number of all born piglets increased to 14,9 piglets (by 2 pcs), the number of live-born piglets increased to 13,5 piglets (by 1,3 pcs) and the number of weaned piglets increased to 12,1 piglets (by 1,2 pcs). The litter weight at 21th day increased to 70,0 kg (by 6,4 kg) and the farrowing interval decreased to 150,0 days (by 10,5 days). The average daily gain from birth of young boars increased to 754 g (by 108 g) and the average daily gain from birth of gilts increased to 664 g (by 21 g). The average daily gain in the field test of young boars improved to 1229 g (by 216 g) and the average daily gain in the field test of gilts increased to 1059 g (by 67 g). The average backfat thickness of young boars was reduced to 5,6 mm (by 1,7mm) and the average backfat thickness of gilts decreased to 6,1mm (by 0,6 mm).
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