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Selenium is an essential element for the proper functioning of mammalian organisms. In many regions of the world, selenium is deficient in the human diet, which is the cause of many diseases. Meat products can be a good source of selenium in the human diet, and pork is traditionally consumed in Poland. Enriching pig feed with selenium can increase its content in pork. The study showed that supplementing...
The research material consisted of 3199 young 5-7 months old purebred boars and gilts of Polish Large White and Polish Landrace breeds. The conformation was evaluated in 3-point scale (lack of defect, small defect, and distinct defect) and 23 traits were assessed, including 20 ones, concerning limbs of animals. The effect of gender, breed, litter- and litter-less management system, season of rearing...
The studies were carried out with 683 gilts of Polish Large White (PLW) breed and 698 gilts of Polish Landrace (PL) breed. The subject of the studies included linear evaluation of incidence and intensity of conformation defects, being conducted with the application of scale of scores: 0 points – lack of defect; 1 point – small defect; 2 points – distinct defect. The effect of the systems of housing...
In the presented research on total 95 gilts, which were fed the same mixed meals and were slaughtered at the same body weight, the influence of breed: Polish Large White, Polish Landrace, Line-990, Pietrain and Duroc on mineral content in MLD was estimated. There was no significant effect of pigs' breeds on Ca and Na contents. The highest level of Fe was tested in MLD of Pietrain, together with the...
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