title: The impact of gastrointestinal parasites infection on slaughter efficiency in pigs.
abstract: The aim of the present study was to determine an influence of parasites invasion on fodder consumption and slaughter yield of fatteners in three different maintenance systems. The experimental part of the study was conducted on pigs farm producing in a close cycle. The study on internal parasites of fatteners were conducted based on coproscopic methods. In order to describe the relationship between following variables: meatiness, slaughter yield, fodder consumption and mean EPG value, the principal component analysis (PCA) was used. The analysis between fodder consumption and maintenance system and fodder consumption and helminths infection did not demonstrate any significant relationship. The analysis between slaughter yield and meatiness and an infection demonstrated in turn a decrease in both parameters values in the two maintenance systems, i.e. in fatteners kept on litter meatiness decrease in infected fatteners of 4.2% and yield of 1.7%. On slatted floor meatiness decrease in infected fatteners of 6.1% and yield of 2.7%. The decreasing tendency in meat content (3.7%) and in slaughter yield (1.1%) was also observed in fatteners maintained on deep litter, however the values were not significant statistically.
authors.affiliation: Department of Pigs Breeding, Institute of Animal Breeding, Wrocław University of Environmental and Life Sciences, Chełmońskiego 38c, 51-630 Wrocław, Poland.
authors.forename: Damian
authors.initials: D
authors.lastname: Knecht
authors.forename: Anna
authors.initials: A
authors.lastname: Jankowska
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Zaleśny
mesh_terms: D000003:Abattoirs; D000822:Animal Husbandry / Q000191:economics; D000818:Animals; D004435:Eating / Q000502:physiology; D006374:Helminthiasis, Animal / Q000191:economics*; D007411:Intestinal Diseases, Parasitic / Q000191:economics / Q000662:veterinary*; D008460:Meat / Q000191:economics / Q000469:parasitology / Q000592:standards*; D013552:Swine; D013553:Swine Diseases / Q000191:economics