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Article
Author(s)
Ivan Bahelka1, Ondřej Bučko2, Roman Stupka1, Michal Šprysl1 and Jaroslav Čítek1
Full-Text PDF XML 1709 Views
DOI:10.17265/2161-6256/2020.02.004
Affiliation(s)
1. Department of Animal Science, Czech University of Life Sciences Prague, Prague 156 21, Czech Republic
2. Department of Animal Husbandry, Slovak Agricultural University Nitra, Nitra 949 01, Slovak Republic
ABSTRACT
Forty-two (42) finishing pigs (entire
males—EM, surgical castrates—SC and gilts—G, each of 14)—progeny of Landrace sows and Hampshire ´ Pietrain boars, were included in the trial.
They were randomly divided into control and experimental groups (each of seven). Control groups were fed the standard diet without any supplement.
Experimental groups received standard diet with the same composition as control
but with supplement of creatine monohydrate (CMH, 2.0 g/kg of feed) for 30 d prior to slaughter. Sex of pigs had significant effect (p < 0.05) on drip loss and tenderness of pork when EM showed higher drip
loss than SC and lower tenderness compared to other two groups (4.71% vs. 3.80%, resp. 3.23 vs. 3.91 and 4.12).
Creatine level in plasma was increased by CMH supplementation in 46% in EM, 43% in SC and 41% in G. Similarly,
concentration of phosphocreatine (PCr) in muscle increased
in 84% in EM, 88% in SC and 83% in G, respectively. CMH
also improved meat colour L* (50.03 vs. 48.88) and reduced drip loss in both EM (5.24% vs. 4.18%) and G (4.48% vs. 3.60%). Higher
tenderness and better oxidative stability of pork after CMH supplementation was
found in all three sexes.
KEYWORDS
Eating quality, feed additives, oxidative stability, pig, pork quality.
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