Breeding value of feeding behavior of pigs

Abstract. The purpose of the research is to develop a comprehensive assessment system with new indicators feed behavior and conversion in Duroc pigs based on selection index. Research methods. Herdsman database was used, which includes processing data fattening characteristics feeding 764 heads that have passed test at automatic stations. 13 were evaluated, 7 6 – characteristics. evaluation breeding value animals according studied traits carried out using BLUP Animal Model methodology. Results. When determining weight coefficients final index equation, included all traits, we relied chosen principle, 50 % given weights indicators. Also, accordance this indicators, 25 allocated for conversion, same amount average daily gain. obtained values presented general structure index: Itotal = 0.5I1 + 0.5I2 0.0241 (TPD) 0.0439 (ADFI) 0.0376 (NVD) 0.0322 (TPV) 0.0074 (FR) (FPV) 0.5343 (FCR) 0.0531 (Age1) 0.0778 (Age0) 0.1217 (BW1) 0.1027 (BW0) 0.0331 (BWG) 0.4557 (ADG). results showed difference between minimum maximum index, 76 sigma points. distribution categories RBV (relative value) among 14 an greater than 120 units, 30.8 category “unconditional improver” 25.8 “improver”. Scientific novelty. These show direct impact refinement animal’s genetic potential, will improve genomic animals.