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The influence of endoparasites on selected production parameters in pigs in various housing systems
A Jankowska-Mąkosa1, D Knecht1
1Department of Pig Breeding, Institute of Animal Breeding, Wroclaw University of Environmental and Life Sciences, Chełmońskiego 38 C, Wrocław 51 630, Poland.
Abstract:
The aim of the study was to determine the level of lean meat content and daily gains of 400 fatteners infected by endoparasites and kept in two systems (shallow and deep litter). Slaughter evaluation of the pigs was conducted according to the EUROP carcass classification. In order to evaluate the average daily gains (g) during finishing period, body weights were investigated twice: at the beginning and at the end of the finishing period. The housing system affected the presence of Ascaris suum and Oesophagostomum spp. Infestation was found to be higher on shallow than on deep litter, and it significantly affected selected fattening and slaughter parameters of the fatteners. Infected animals were characterized by gains approximately 60 g lower than those of uninfected ones, while meatiness was higher in fatteners which were not infected at the end of the fattening period compared to animals with parasites (55.2% vs. 52.0%).
