Estimated of Genetic Parameters for Time on Test and Backfat Thickness for Gilts from Field Test

Sa？etak In year 2003, experimental genetic evaluation with BLUP was implemented for fattening traits in gilts in Croatia. Pure and cross- bred animals were included. Slovenian information system PiggyBank was adapted. Strong emphasis was done on data quality. Two main problems were small number of data and inaccurate measurements of body weight and backfat in gilts. Consequently, estimated genetic parameters were improper for genetic evaluation. Better measurements and more data will lead to better estimations of dispersion parameters. Genetic evaluation for litter size, analyses of phenotypic and genetic trends are planed in the future