02096naa a2200409 a 450000100080000000500110000800800410001902400350006010000170009524501400011226000090025252009470026165000220120865000160123065000120124665000430125865000170130165000090131865000090132765000120133665000230134865000100137165000240138165300110140565300090141665300250142570000220145070000190147270000220149170000170151370000160153070000220154670000130156870000170158170000200159877300680161820264102016-07-26       2015    bl uuuu     u00u1 u    #d7 a10.1007/s11250-014-0745-82DOI1 aSILVA, G. S.  aCase-control study evaluating the sow s risk factors associated with stillbirth piglets in Midwestern in Brazil.h[electronic resource]  c2015  aReproductive failure in swine herds is often difficult to diagnose and is important to swine production. The present study aims to identify the potential risk factors (infectious/noninfectious) for stillborn piglets in two commercial swine farms situated in midwestern region of Brazil. The potential risk factors were included in a multivariable logistic model, and the dependent variable was defined as the presence of at least one stillborn piglet in a given litter (yes or no). In the best fit model, two variables from the multivariable analysis, total litter size (p=0.01), and average birth weight (p=0.03) were significantly associated with the presence of stillborn piglets at the farms examined in this study. Porcine circovirus type 2 (PCV2) was detected in 29.1 % of the litters. Neither parvovirus (PPV) nor leptospirosis infections were identified in this study, suggesting that they have a minor impact on reproductive disease.  aAnimal production  aFetal death  aPiglets  aQuantitative polymerase chain reaction  aRisk factors  aSows  aFeto  aLeitão  aMortalidade animal  aPorca  aReprodução animal  aBrasil  aQPCR  aRegião Centro Oeste1 aLANA, M. V. da C.1 aDIAS, G. B. G.1 aCRUZ, R. A. S. da1 aLOPES, L. L.1 aMACHADO, G.1 aCORBELLINI, L. G.1 aGAVA, D.1 aSOUZA, M. A.1 aPESCADOR, C. A.  tTropical Animal Health and Productiongv. 47, p. 445-449, 2015.