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The aim of ther studies was to analyze a frequency of congenital leg muscle hypoplasia in piglets reared on grill net and full solid asphalt floors in large scale farms. Statistically significantly higher number of sick piglets in broods was noted on farms with asphalt floors comparing to farms with the grill net boxes. Congenital leg muscle hypoplasia was diagnosed in 1.46% of alive born piglets...
Infra-red lamps (250 W) (L) and floor heated panels (160—180 W) (P) installed within 24 open-type nests for suckling piglets were compared. I was found higher air temperature about the value of 0.62°C, radiative temperature higher about 10.85°C and 50 times lower heat outflow in L type then in panel heated nests (P). The skin temperature measured at pig backs was higher about 1.48°C (p ≤ 0.01) and...
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