Abstract
The paper studies two nucleus pig farms in the Great Plain region of Hungary which have same management, same feeding system but different breeding technology (Farm A had solid floor with straw and Farm B had slatted floor without straw). The genetics of sows were crossbred Dutch Large White and Dutch Landrace. The comparative examination was based on the causes of culling according to the different floor type. To the analysis of culling reasons was applied the methods of survival analysis.
 In the analysis there were used the Kaplan-Meier method and the Cox Proportional Hazard model to the estimate the difference between the farms. The results of survival analysis showed significant difference (p<0.05) between the lifespan of sows that caused the difference between the survival probabilities of sows culled due to lameness. Furthermore there was showed that the sows kept on solid floor with straw have stayed in production longer than on slatted floor without straw. The hazard ratio was 1.434 that means that the culling due to lameness is 1.434 times higher by the slatted floor without straw facing by solid floor with straw.
Highlights
The paper studies two nucleus pig farms in the Great Plain region of Hungary which have same management, same feeding system but different breeding technology (Farm A had solid floor with straw and Farm B had slatted floor without straw)
The comparative examination was based on the causes of culling according to the different floor type
To the analysis of culling reasons was applied the methods of survival analysis
Summary
A tanulmány egy, az Észak-Alföld régióban gazdálkodó nagy sertésintegráció tenyészsüldő előállító telepeinek vizsgálatát mutatja be. A közös menedzsment alá tartozó telepek keresztezett holland nagy fehér és holland lapály hibrideket tenyésztenek, azonos takarmányozási és működési rendszer mellett, de részben eltérő tartástechnológiával („A telepen” szalmával borított szilárd betonon, „B telepen” szalma nélküli beton illetve rácspadozaton történik a kocák termelése). A padozat eltéréséből adódóan elemzés készült a telepeken termelő kocák élettartamára vonatkozóan, az egyes selejtezési okok figyelembevételével és a túlélés elemzés különböző módszereinek alkalmazásával. A vizsgálatban a túlélés elemzés legfontosabb módszereinek (Kaplan Meier becslés és Cox Proportional Hazard modell) alkalmazásával kimutatásra került, hogy szignifikáns különbség van (p
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